List of commercial video games with available source code

This is a list of commercial video games with available source code. The source code of these commercially developed and distributed video games is available to the public or the games' communities.

Motivation

Commercial video games are typically developed as proprietary closed source software products, with the source code treated as a trade secret (unlike open-source video games). When there is no more expected revenue, these games enter the end-of-life as a product with no support or availability for the game's users and community, becoming abandonware.

Description

In several of the cases listed here, the game's developers released the source code expressly to prevent their work from becoming abandonware. Such source code is often released under varying (free and non-free, commercial and non-commercial) software licenses to the games' communities or the public; artwork and data are often released under a different license than the source code, as the copyright situation is different or more complicated. The source code may be pushed by the developers to public repositories (e.g. Sourceforge or GitHub), or given to selected game community members, or sold with the game, or become available by other means. The game may be written in an interpreted language such as BASIC or Python, and distributed as raw source code without being compiled; early software was often distributed in text form, as in the book BASIC Computer Games. In some cases when a game's source code is not available by other means, the game's community "reconstructs" source code from compiled binary files through time-demanding reverse engineering techniques. Source code availability in whatever form allows the games' communities to study how the game works, make modifications, and provide technical support themselves when the official support has ended, e.g. with unofficial patches to fix bugs or source ports to make the game compatible with new platforms.

Games with instantly included source code

   Title    First release Source code release Genre Engine license Content license Original developer Additional information
A Dark Room 2013 2013 Online text-based role-playing game Mozilla Public License Mozilla Public License Doublespeak Games In July 2013 the source code of the game was put on GitHub under MPL 2.0.[1] Became commercially successful after the source code release.
Akalabeth: World of Doom 1979 1979 Role-playing video game public domain Freeware Richard Garriott Richard Garriott distributed the Applesoft BASIC written game originally as source code. Also later Origin Systems offered the source code on their FTP servers.[2][3]
Barotrauma 2017 2017 submarine simulator restrictive (only mods)[4] commercial Undertow Games / Joonas "Regalis" Rikkonen The game was released in 2017 commercially on Steam by independent developer Undertow Games (Joonas "Regalis" Rikkonen). Source code was released on 4 June 2017 on GitHub under a restrictive mods allowing license.[5][6] His previous game, SCP – Containment Breach, is also available as free and open-source software under CC BY-SA license.
Bomb Alley 1983 1983 Turn-based strategy ? commercial Strategic Simulations / Gary Grigsby The game used the same engine used by Grigsby's previous Guadalcanal Campaign, which was coded and distributed as uncompiled Applesoft BASIC.[7]
Diamond Trust of London 2012 2012 TBS Public Domain Public Domain Jason Rohrer Following a Kickstarter crowdfunding campaign Diamond Trust of London was developed by Jason Rohrer and published by indiePub. On August 28, 2012 it was released for the Nintendo DS. The game has been placed in the public domain, hosted on SourceForge, like most of Rohrer's games.[8]
DONKEY.BAS 1981 1981 Racing game Proprietary Proprietary Bill Gates, Neil Konzen Was written by Microsoft co-founder Bill Gates and Neil Konzen in 1981 and was included with early versions of the PC DOS operating system for the original IBM PC. Similar early BASIC games which were distributed as source code are GORILLA.BAS and NIBBLES.BAS.
ELIZA (DOCTOR) 1966 1966 Chatbot / Rogerian psychotherapist simulator public domain software public domain Joseph Weizenbaum ELIZA is an influential video game predecessor written at the MIT Artificial Intelligence Laboratory by Joseph Weizenbaum between 1964 and 1966.[9] Weizenbaum's original MAD-SLIP implementation was re-written in Lisp by Bernie Cosell.[10][11] A BASIC version appeared in Creative Computing in 1977, written in 1973 by Jeff Shrager.[12] This version, which was ported to many of the earliest personal computers, appears to have been subsequently translated into many other versions in many other languages.[13]
Frogatto & Friends 2010 2010 platformer Zlib license / CC-BY 3.0 Proprietary Lost Pixel The game was developed open-source on GitHub with an own open-source game engine[14] by several The Battle for Wesnoth developers and released in July 2010 for several platforms. The game was for purchase on the MacOS' app store,[15][16] iPhone App Store[17] and BlackBerry App World[18] as the game assets were kept proprietary.[19]
Handmade Hero 2014 2014 ? proprietary Proprietary Casey Muratori Senior video game developer Casey Muratori started November 2014 a project to program a commercial C based game from the scratch and documenting the development in a series of videostreams;[20] planned are 600 episodes, one per day. The game's recent prototypes and source code are made available for $15.[21] The final game will be DRM-free, cross-platform and the source code will be given into public domain two years after its release.
Hydra Slayer 2016 2016 Roguelike GPLv3 GPLv3 / commercial Zeno Rogue Released in 2016 on Steam[22] and GitHub[23] as open-source roguelike with focus on mathematics.
HyperRogue 2011 2011 Roguelike GPLv2 GPLv2 / commercial Zeno Rogue Released in 2011 on GitHub[24] as open-source non-Euclidean roguelike, it was commercialized in 2015 on Steam and other distributors.[25]
Marvellous Inc 2018 2018 Programming game GPLv3 CC BY-SA Marvellous Soft Marvellous Inc was originally a Ludum Dare entry, inspired by Zachtronics Industries' TIS-100. Expanded and then commercially released in 2018 on Steam for $4.99, source code is on github.[26]
Jagged Alliance 2 Wildfire (now JA2-Stracciatella[27]) 2004 2004 Tactical role-playing game Own license Proprietary iDeal Games Source code was bundled and released with JA2: Wildfire 2004.[28] The JA: Unfinished Business source code became later available too.[29]
One Hour One Life 2018 2018 Multiplayer survival game Public domain software Public domain Jason Rohrer Released February 2018 and exclusively sold via the developer's webpage.[30] Like the games before, public domain software and hosted on GitHub.[31]
Pitman 1985 1985 Puzzle game ? ? Yutaka Isokawa Originally created in 1985 on a MZ-700 home computer by Yutaka Isokawa. The BASIC listing was published in the August 1985 issue of the magazine "Oh!MZ Publications".[32][33][34] In 1990 the game was commercially converted for the Game Boy. In 2011 the game community restored an faithful as possible version from the available variants.[35]
Pixel Dungeon 2014 2014 roguelike GPLv3 GPLv3 watabou While sold on Steam for $4.99[36] it was released in July 2014 on GitHub under GPLv3 including the assets.[37]
Receiver 2012 2012 FPS / stealth game own non-commercial conditions Proprietary Wolfire games The source code of the game is available since 2012 on GitHub under non-commercial conditions.[38]
Safari 1986 1986 Point and click freeware freeware John Gallaugher John Gallaugher released the 68k Mac game including the source code.[39]
Santa Paravia en Fiumaccio 1978 1978 turn-based strategy public domain public domain George Blank The game by George Blank[40] first appeared in the December 1978 issue of SoftSide magazine as BASIC listing.[41] It was published for sale on tape cassette as a computer game by Instant Software for the Radio Shack TRS-80, the Apple II, Texas Instruments TI-99/4A, and the Commodore PET.[42] It has been translated into many programming languages, such as ANSI C,[43] and has been ported to the Palm Pilot.
Softporn Adventure 1981 1981 Text adventure Freeware (originally commercial) Freeware (originally commercial) Chuck Benton / On-Line Systems A comedic, adult-oriented text adventure game produced for the Apple II in 1981. Softporn Adventure was originally written and released for the Apple II as Applesoft BASIC source code in 1981 by programmer Chuck Benton.[44] The game was released by On-Line Systems and became later the base for Leisure Suit Larry 1.[45] The PC version was also released later as freeware by Al Lowe.[46][47][48]
Quadrilateral Cowboy 2016 2016 Puzzle video game GPL Proprietary Blendo Games Game source released on August 8, 2016 as it is based on the id-tech 4 engine.[49][50]
Telengard 1982 1982 Dungeon crawler, role-playing, roguelike ? ? Avalon Hill / Daniel Lawrence As the game's BASIC source code ("DSKTEL.BAS") was available early on, ports and remaster exist therefore by the community.[51][52]
The Oregon Trail 1971 1971/1975/1978 Role-playing video game Public domain (?) Public domain (?) Don Rawitsch / MECC Rawitsch published the source code of The Oregon Trail, written in BASIC 3.1 for the CDC Cyber 70/73-26, in Creative Computing's May–June 1978 issue.[53] In 2011 the 1975 and 1978 BASIC source code versions of the game were reconstructed.[54]
The Castle Doctrine 2014 2014 MMO Public Domain Public Domain Jason Rohrer The Castle Doctrine is developed by Jason Rohrer in a public Sourceforge repository and is like most of his creative works in the public domain.[55] The Castle Doctrine was developed as an early access game and is now sold on Steam for $14.99.[56]
The Prisoner 1980 1980 adventure game ? ? Edu-Ware / David Mullich Developed in BASIC for the Apple II the source code was available with the release. Source code is hosted on GitHub.[57]
Vulture for Nethack 1987 1987 rogue-like NetHack General Public License Freeware / Commercial Nethack community / Jaakko Peltonen / Clive Crous Falcon's Eye was developed by Jaakko Peltonen as graphical version of Nethack.[58] After 2001 development had ended, Clive Crous continued Falcon's Eye as Vulture's Eye[59][58] While still being Free and open-source software the game is commercialized via the author's website and Desura for $2.99. In October 2013 the game was put into the Steam Greenlight process[60] and successfully released on Steam in January 2016.[61]

Games with later released source code

Title First release Source code release Genre Engine license Content license Original developer Additional information
Abuse 1995 2003 Run and gun Public domain software Public domain and Proprietary* Crack dot Com Game source code was released as public domain along with the shareware-released media files.[62] Only shareware data, excluding the sound effects, is in the public domain; the rest is proprietary. In 2016 a community developer released a "20th anniversary source port"[63][64] which enabled custom resolutions, OpenGL rendering, Xbox 360 controller support and fixed the music.
Adventureland 1978 1980 Text Adventure game Public domain software Public domain Scott Adams Scott Adams Adventureland's[65] source code was published in SoftSide magazine in 1980[66] and the database format was subsequently used in other interpreters such as Brian Howarth's Mysterious Adventures series.[67]
Airline Tycoon 1998 2015 Simulation game proprietary[68] Commercial Spellbound Entertainment On 24 March 2015 Airline Tycoon Deluxe was re-released on the digital distribution platform gog.com, including the source code.[69]
Alien Bash I+II 1993 2014 Run and gun public domain software public domain[70] Glen Cumming Glen Cumming provided media and material of his Amiga games "AlienBash" and "AlienBash II" to the fan community, who was able to restore source code in 2014.[71]
Alien Breed 3D II: The Killing Grounds 1996 1997 FPS ? Proprietary Team17 In March 1997 Team17 made the source code of Alien Breed 3D and Alien Breed 3D II freely available on the cover CD of Amiga Format magazine issue 95.[72][73][74]
Alien vs Predator (Atari Jaguar game) 1994 2008 FPS ? Proprietary Rebellion Developments Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[75][76] Source code was provided by Atari historian Curt Vendel.[77]
Aliens versus Predator 2000 2001[78] FPS Own non-commercial license[79] Proprietary Rebellion Developments Source code released by Rebellion Developments 2001. An unofficial patch project for the PC version, based on the source code, was released and is still updated.[78]
Alpha Waves 1990 2009 early 3D exploration game with platform aspects ? ? Christophe de Dinechin Released in 1990 as one of the earliest 3D games[80] with full 6-axis degree of freedom. In 2009, author Christophe de Dinechin released the complete assembly and GFA BASIC source code of the Atari ST version.[81][82] There is also a started PC port in C++ on SourceForge by the original author.[83][84]
Allegiance (now FreeAllegiance) 2000 2004 real-time strategy and Space combat simulator MIT license (earlier Shared Source[85]) Proprietary Microsoft Research Released by Microsoft Research under a shared source license ("MSR-SSLA") 2004.[86] On July 27, 2017 Microsoft Research changed the license from MSR shared source license to MIT license.[87]
Amulets & Armor 1997 2013 first person role-playing video game GPLv3 Freeware United Software Artists In 2013 Amulets & Armor was re-released as freeware on the game's official site and the source code under GPLv3 on GitHub.[88][89] Work continues for ports to newer systems (Windows, MacOS) and general bug fixes.[90][91]
Anacreon: Reconstruction 4021 1987 2004 4x game no license given Freeware George Moromisato Developed by George Moromisato in 1987. Around 2004 the source code of the DOS version 2.00 was released.[92]
Anachronox 2001 2001 (partly) FPS Proprietary Proprietary Ion Storm Some bits of code distributed with the official editor.
Ares (now Antares) 1996 2008 Space Strategy video game LGPLv3[93] CC BY-NC-SA Freeware Nathan Lamont/Bigger Planet Software Released in 2008. Under continued development for modern systems as "Antares" via GitHub.[94]
Army Men III 2016 2018 ? ? ? Neotl Empire Army Men III was under development until 2016. Two years later, the unfinished game was release as open source on sourceforge in April 2018.[95]
Arx Fatalis (now Arx Libertatis) 2002 2011 RPG GPL Proprietary Arkane Studios The design of Arx Fatalis was heavily influenced by Ultima Underworld. Game source released by Arkane Studios on January 14, 2011. Based upon this source code the formed Arx Libertatis-project created Fan-made patches and Source ports.[96][97]
AstroMenace (now OpenAstroMenace) 2006 2007 Arcade GPLv3 CC BY-SA 3.0 Viewizard Based on AstroMenace which was released in February 2007 as shareware for Windows and freeware for Linux.[98] Also the source code of another Viewizard game, the puzzle collection Memonix, was released.[99]
Asylum 1994 2002 Platformer Public domain software[100] Public domain software Andy Southgate Released by Andy Southgate as public domain and with a SDL port under GPLv3.[101] Later ported also to the Pandora.[102]
Attack of the Mutant Camels 1989 2012 Scrolling shooters ? ? Jeff Minter In 2012 the assembly language source code of the Konix version of the game was released on GitHub.[103][104]
Aquaria 2007 2010 Action-adventure GPL Proprietary Bit Blot Open sourced with Humble Indie Bundle.[105]
Avara 1996 2016 Shooter game MIT license proprietary Ambrosia Software / Juri Munkki The MacOS classic game became open source in 2016 when Munkki released the source code upon the game's 20th anniversary.[106]
Aztaka 2009 2011 Action role-playing game Proprietary Citérémis In 2011 Independent game developer Citérémis released a "Developer's Edition" of Aztaka for $9.99 which included also the source code of the game.[107][108]
Balance of Power 1985 2013 Government simulation game ? ? Chris Crawford In August 2013 Chris Crawford released source code of several of his games from his career to the public,[109] fulfilling a GDC 2011 given promise.[110] Beside Balance of Power he released all the source code he could recover, for instance Trust & Betrayal: The Legacy of Siboot, Excalibur, Gossip, Eastern Front (1941), Scram and Legionnaire.
Barony 2015 2016 Rogue-like GPLv3 commercial Turning Wheel The game was released in June 2015 commercially on Steam and gog.com.[111] Source code was released in June 2016 on GitHub.[112]
Batman Returns 1993 2015 sidescrolling Beat 'em up for educational purposes for educational purposes ACME / Chris Shrigley In March 2015 programmer Chris Shrigley, who worked on the Sega CD version, found the Batman Returns source code and released it for educational purposes to the public.[113] He released also the source code of Magician, Cliffhanger, Gargoyles and some other games from his working career.[114]
Beneath a Steel Sky 1994 2003 Point and click adventure Beneath a Steel Sky Freeware License Beneath a Steel Sky Freeware License Revolution Software The assembly language source code of the game was made available to the public and ScummVM in August 2003.[115][116] The source code availability made it possible for the ScummVM project to support the game, which allows the game to be played on Windows, OS X, Linux, Windows CE and other compatible operating systems and platforms.
Beyond Castle Wolfenstein 1985 2005 Stealth game no license given Freeware Silas Warner The reconstructed source code and the ported game was released by Silas Warner's widow in 2005.[117]
Beyond Protocol (now After Protocol) 2008 2011 persistent, space MMORTS non-commercial public license Freeware Dark Sky Entertainment Initial design of Beyond Protocol began in 1991.[118] A scaled up beta program began Nov 15th 2007[119] with an open-beta in 2008. When due to financial issues the game has been shut down, the source code was released on 4 May 2011 on Sourceforge to the public.[120] Based on this source code, community organized development continues until today as After Protocol.[121]
Beyond the Titanic 1986 2009 Text adventure GPL GPL Apogee Software Game source released on March 20, 2009.
Blades of Exile 1997 2007 RPG GPL GPL Spiderweb Software Source code and artwork was released by Jeff Vogel (Spiderweb Software) under a GPL license in June 2007.[122]
Blake Stone: Planet Strike 1994 2013[123] FPS GPL[124] GPL Apogee Software Released in 2013 to promote the sale of the Apogee Throwback Pack on Steam.
Blood II: The Chosen 1998 1999 FPS Proprietary Proprietary Monolith Productions SDK released 1999, including the game logic for modders.[125]. The Lithtech engine was not included as source code.
Blue Max 1983 2016 Scrolling shooter ? proprietary Bob Pollin Assembly source code released in 2016 by the author Bob Pollin in the Atariage forum.[126] On the Atariage forum source code of many more games was released.[127][128][129]
Bob's game 2004 2016 puzzle, action RPG source available Freeware Robert Pelloni In August 2016 the source code of the game was released on GitHub under a non-commercial source available software license,[130] to allow the community to contribute. The author claims that he wrote the game originally in C, switched then to Java, and later converted it with an automatic code converter to C++.[131]
Breakout 2000 1996 2008 Action ? Proprietary MP Games Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Breathless 1995 1997 FPS Non Commercial Non Commercial Fields of Vision Amiga game, assembly source code was released on Amiresource volume 6 CD.[132]
Buzz Aldrin's Race Into Space (now Race Into Space) 1993 2007 Simulation GPLv2[133] Freeware[134] Strategic Visions/Fritz Bronner A port of Buzz Aldrin's Race Into Space to modern operating systems. The license fell back to Bronner as he had a contract clause with Interplay stating that in case Interplay went bankrupt or no distribution happened for some time.[134]
Catacomb 1989 2014[135] Top-down shooter GNU General Public License Proprietary Flat Rock Software Early game by John D. Carmack. Released by Flat Rock Software,[136] and ported to SDL.[137]
Catacomb 3D 1991 2014[135] FPS GNU General Public License Proprietary Flat Rock Software / id Software Predecessor to Wolfenstein 3D.
Call to Power II 2000 2003 turn-based strategy game Non-commercial own license[138] Proprietary Activision Civilization clone. Source opened to the apolyton community to allow support with Community patches.[139]
Canabalt 2009 2010 Cinematic platformer Engine MIT license,[140] game code own proprietary license[141] Proprietary / Freeware Adam Saltsman Released by Adam Saltsman in 2010.[142]
Captain Blood 1988 2017 Adventure, Simulation ? ? Exxos (ERE informatique) Apple IIgs sources released by Brutal Deluxe Software.[143][144]
Carnivores 2 1999 2013 Simulation ? Freeware Action Forms A version from 2013 is available on assembla.[145] Around 2017 the source code was released via Moddb.[146]
Cart Life 2011 2014 Simulation CART LIFE'S FREE LICENSE (Permissive license) CART LIFE'S FREE LICENSE (Permissive license) / Freeware Richard Hofmeier In March 2014 the game was removed from all digital distributions and the source code and game was made available for free online, with Hofmeier saying he was finished supporting the game.[147] His webpage went later offline but the source code was mirrored on GitHub.[148][149]
Checkered Flag 1994 2008 Racing ? Proprietary Rebellion Developments Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Civilization IV 2005 2006 (partly) turn-based strategy proprietary proprietary Firaxis Games / 2k Games In April 2006 the developers released the source code of the core game mechanic to the public with a Software Development Kit.[150][151] Additionally to the released source code, as game data and rules are stored in XML files and most of the game is written in Python, much (but not all) of the game is "open" and easily customizable.[152] The game's community produced later many mods, total conversions and optimization patches for the game.[153]
Civilization V 2010 2012 (partly) turn-based strategy proprietary proprietary Firaxis Games / 2k Games In Fall 2012 the developers released the source code of the core game DLL.[154] The game's community produced later a community patch project.[155][156]
Clonk series (now OpenClonk) 1994 2010/2014 Action, RTS, Platform ISC CC BY-NC RedWolf Design / Matthes Bender For the series (Clonk 1, Clonk 2 Debakel, Clonk 3 Radikal, Clonk 4 World, Clonk Planet, Clonk Endeavor and Clonk Rage) the C++ source code was released under the "Clonk Source Code License (ISC License)".[157] The content of the original game series was released under the CC BY-NC.[158] Based on Clonk Rage code base the community continues the development as OpenClonk under ISC license and content as CC BY-SA.
Club Drive 1994 2008 Racing ? Proprietary Atari Corporation Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Colobot 2001 2012 Educational game, RTS GPLv3 GPLv3 Epsitec SA Game source released on March 26, 2012.[159]
Colossal Cave Adventure 1976 2000/2005 (?) Text Adventure Public domain software[160][161][162] / BSD license (2017) no artwork (Public domain software) Will Crowther Source code variants are at least available as far back as 2000.[163] An authentic version was retrieved in 2005 "from a backup of Don Woods's student account at the Stanford Artificial Intelligence Lab (SAIL)".[160] In February 2017 Eric S. Raymond was involved in the release of version 2.5, under BSD license, the last release by the original author alone.[164][165][166]
Commander Keen: Keen Dreams 1991 2014 Platformer GPLv2+ Proprietary id Software In September 2014, after an Indiegogo crowdfunding campaign,[167] the game's source code was released on GitHub.[168][169]
Continuum 1987 2010s Arcade Freeware Freeware Brian Wilson The Commodore 64 port was published commercially under the name Magnetron, the 68k Mac version was released as Beerware.[170] Game and C source code was released by the author in the 2010s.[171]
Contract J.A.C.K. 2003 2003 FPS Proprietary Proprietary Monolith Productions Game code distributed with the official editor (www.mpgh.net).
Conquest: Frontier Wars 2001 2013 Space Real-time strategy ? Proprietary Fever Pitch Studios On December 9, 2013, the source code was bundled with every copy of the game purchased on GOG.com.[172][173]
CoreBreach 2011 2012 Racing game GPL (game) / MIT (3D engine)[174] Freeware (demo) / proprietary CoreCode Futuristic "anti-gravity" racing game with combat. Source was released after a sales quota was met.[174]
Corncob 3D 1993 2016 Flight simulator Public domain software[175] Freeware Pie in the Sky / Kevin Stokes The game became around 2016 freeware and open source.[175]
CryEngine 5 2002[176] 2016 FPS ? NA Crytek In 2016 Crytek released their engine as pay-what-you-want including the source code to the public.[177][178]
Crysis 2007 ? FPS Proprietary Proprietary Crytek Game code was officially released with the SDK.
Crysis 2 2011 ? FPS Proprietary Proprietary Crytek Game code was officially released with the SDK. CryEngine is open source as well.
Crystal Mines 1989 2011 Arcade Custom permissive license Freeware Ken Beckett / Color Dreams In August 2011 Ken Beckett, the programmer of the NES game Crystal Mines, released the source code under a custom permissive license to the public.[179][180] Artwork still proprietary but can be shared for non-commercial, personal use.[181]
Cybermorph 1993 2008 Shooter ? Proprietary Attention to Detail Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Cylindrix 1995 2001 Arcade, Shooter LGPL LGPL Goldtree Enterprises / Softdisk Around December 2001 the games was ported from DOS to Windows and released under the LGPL to the public.[182][183]
Cytadela (or The Citadel) 1996 2006 FPS GPLv2 GPLv2 Virtual Design In early 2006 the original Cytadela developer offered the Amiga source code of the FPS game to the community, which started a conversion project hosted on SourceForge.[184][185][186] Ported to several platforms, latest version released in 2013.
Daikatana 2000 2015 FPS ? Proprietary Ion Storm / John Romero Lacking any further official support after the closure of Ion Storm's Dallas office in 2001, John Romero gave the game's source code to community members, allowing them to develop additional platform ports and bug fixes.[187][188]
DarkSpace 2001 2009 MMO, Real-time strategy multiple, self-written licenses.[189] Proprietary Palestar DarkSpace's game engine called Medusa released by Palestar under multiple licenses.[190]
Death Ray Manta 2012 2015 Arena shooter ? educational purposes Bagfull of Wrong / Rob Fearon The GameMaker Studio based game's source code was released in 2015 with a Humble Indie Bundle.[191] The assets followed in 2016.[192]
Descent (now D2X-XL)[193] 1995 1997/1999 space 3D FPS own license[194] Proprietary Parallax Software Game source released by Parallax Software in 1997 (Descent 1)[195] and 1999 (Descent 2).[196] Descent 3 source code seems to be in hands of Rebecca Heineman and were considered 2014 for a release.[197]
Deus Ex (video game) 2000 ? FPS Proprietary Proprietary Ion Storm Headers and some code distributed with the official SDK.
Digger 1983 2004 Arcade proprietary Freeware Windmill Software The original source code became available in September 2004 "for historical interest" (together with source code of other Windmill Software games as Styx).[198][199] There is also an earlier free software reverse engineered variant available by Andrew Jenner, called Digger Remastered, ported for many platforms.[200]
Dink Smallwood 1997 2003 Action RPG Zlib inspired own license[201] Zlib/Proprietary (Sound)[202] Robinson Technologies Source code published on July 17, 2003 from Seth Robinson.[203] 2008 Artwork published (without some sounds) under a Zlib license.[204] In October 2017 the HD version became fully open source and freeware, too.[205] The source code became available on GitHub shortly after.[206]
Discworld and Discworld II 1995 2008 point-and-click adventure game ? ? Teeny Weeny Games First announced for release around 2005 by Terry Pratchett,[207] source code became in 2008 available to the ScummVM developers.[208] The code was fast integrated into ScummVM.[209]
Disney's Aladdin 1993 2017 Platformer Proprietary Proprietary Disney Around 2017 the source code of the game became available to "The Video game history foundation", which wrote a review of the technique of the game based on the code.[210]
Dog Daze 1981 2014 Arcade game ? ? Gray Chang In 2014 Gray Chang released the source code of his Atari 400/800 games Dog Daze, Dog Daze Deluxe, Bumpomov's Dogs, and Claim Jumper.[211] Available at the Internet Archive.
Doom 1993 1997/1999 FPS GPL Proprietary Id Software Game source released on December 23, 1997, placed under GPL on October 3, 1999.
Doom (Atari Jaguar) 1994 2008 FPS ? Proprietary Id Software Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Doom II: Hell on Earth 1994 1997/1999 FPS GPL Proprietary Id Software Game source released on December 23, 1997, placed under GPL on October 3, 1999.
Doom 3 2004 2011 FPS GPL Proprietary Id Software Game source released on November 22, 2011.[212]
Dragonfire 1982 2003 action public domain software public domain Imagic / Bob Smith Source code of this Imagic Atari 2600 game was released by developer Bob Smith on May 24, 2003 into the public domain.[213][214][215] Many more Atari games got disassembled and commented by the Atari community.[216]
DROD series 1997 2000 Puzzle game Mozilla Public license 1.1 (and other)[217] Proprietary Webfoot / Erik Hermansen After the author reacquired the rights to the game from the original publisher Webfoot,[218] he released the source code of the game engines.[217][219] The source code releases include DROD: King Dugan's Dungeon, DROD: Journey to Rooted Hold, DROD: The City Beneath, DROD: Gunthro and the Epic Blunder, DROD: The Second Sky, and DROD RPG: Tendry's Tale without its media assets.[220]
Duke Nukem 3D 1996 2003 FPS GPL / Build license[221] Proprietary 3D Realms / Ken Silverman Game source released on April 1, 2003.[222] Update builds and source ports like eduke32 followed by the game's community.[223]
Dungeon Defenders 2010 2011 Tower defense ? Proprietary Trendy Entertainment In November 2011 there was a "development kit" released as free DLC which included the game's source code.[224]
Dungeons of Daggorath 1982 2001 3D Dungeon crawler Freeware Freeware DynaMicro / Douglas J. Morgan As for years there has been no production by the publisher Radio Shack of the game, the distributions rights fall back to the developers. Morgan released game around 2001 under a freeware like license to the public, also offering the source code.[225][226] Following, the game's community has created ports for PC,[227] Linux,[228] RiscOS[229] and PSP.[230]
Eat The Whistle - France 98 1998 2004 Sports game GPLv2[231] GPLv2 Hurricane Studios The France 98 football Simulation video game was released for the Amiga in 1998. Around 2004 Eat the Whistle was released under the GPL on Sourceforge, together with the point and click adventure Escape Towards The Unknown GPL.[232] Later ported to many other platforms.[233]
Eldritch 2013 2014 FPS, roguelike zlib license Proprietary Minor Key Games In April 2014, the game's source code was released to the public under a permissive zlib license. Content still proprietary and game being sold.[234][235]
Elite 1984 1999 Space trading game ? Freeware Ian Bell, David Braben In November 1999, developer Ian Bell released on the game's 15th birthday the BBC Micro assembly source code on his website.[236][237] Following that, Christian Pinder created a platform-neutral C version from the released BBC Micro version, called Elite: The new kind. In 1999–2000 a dispute occurred between Ian Bell and David Braben regarding Bell's decision to make available all versions of the original Elite.[238] The dispute has since ended and the various versions are now available again on Bell's site.[239][240]
Enemy Engaged: RAH-66 Comanche vs. KA-52 Hokum 2000 2003 Helicopter Flight simulator own license[241] Proprietary Razorworks Game source was released somewhen 2003 by Razorworks.[242]
Enemy Nations 1997 2005[243]
/2006[244][245]		 RTS own non-commercial license[246] non-commercial Freeware[246] Windward Studios Game source and artwork was released by Windward Studios under a non-commercial license around 2005/2006.
Falcon 4.0 1998 2000 Combat flight simulator Proprietary (leaked code) / questionable BSD license (FreeFalcon community development branch) Proprietary MicroProse A 2000 source code leak[247] by a former developer allowed unofficial community development, including upgrades, improved graphics, and bug fixes. In 2013 the source code of one of the community development branches was released to a GitHub repository under a BSD license.[248] As Atari currently owns the intellectual property and Graphsim has the exclusive right to publish, the legality of this source code release is questioned by some community members.
Far Cry (video game) 2004 ? FPS Proprietary Proprietary Crytek Game code was officially released with the SDK.
F.E.A.R. 2005 ? FPS Proprietary Proprietary Monolith Productions Headers and some code distributed with the official SDK.
Fight for Life 1996 2008 Fighting ? Proprietary Atari Corporation Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Fish Fillets (now Fish Fillets NG) 1998 2002 Puzzle GPL GPL Altar Games Released commercially as Fish Fillets in 1998. Source released in 2002 under the GPL.
Flow 2006 2009 Life simulation ? (For educational purposes) Freeware Thatgamecompany / Jenova Chen Around 2009 the flash source code was made available for educational purposes by the developers.[249][250]
Fort Apocalypse 1982 2015 action CC BY-NC-ND 2.5 CC BY-NC-ND 2.5 (Freeware) Steve Hales / Synapse Software In 2007 the Atari 8-bit game was relicensed to a CC BY-NC-ND 2.5 by Steve Hales and released on IgorLabs.[251] On April 23, 2015, Steve Hales released the assembler source code to Fort Apocalypse on GitHub, also under CC BY-NC-ND 2.5, for historical reasons.[252]
Free Fall 1983 1999 Beat 'em up ? Freeware Ian Bell / Acornsoft In 1999, developer Ian Bell released the video game's BBC Micro assembly source code on his website.[253] Semi-serious he considers it the first ever Beat 'em up video game.
Freedom Force 2002 2002 (partly) FPS Proprietary Proprietary Irrational Games Game logic written in Python. Scripts are located in the game directory.
FreeSpace 2 (now FreeSpace 2 Source Code Project) 1999 2002 Space Sim Non-commercial/Proprietary Proprietary Volition Game source released by Volition on April 25, 2002.[254]
Gates of Skeldal 1998 2008 Dungeon crawler role-playing video game GPL 3 Freeware Napoleon Games On 19 November 2007 the game was made freeware by the Czech developer, in 2008 the source code was released under GPLv3 on a SourceForge repository.[255][256] Later it was translated by fans to English and ported to linux.[257]
Gish 2004 2010 Action GPL Proprietary Cryptic Sea Source opened with Humble Indie Bundle by Wolfire Games.[258][259]
Glider PRO 1994 2016 Flight simulator GPLv2 GPLv2 John Calhoun On 27 Jan 2016, the source code, graphics, and sound data for Glider PRO were released on GitHub with the source code being licensed under the GNU General Public License v2.[260][261]
Gladiator 1995 2002 top down perspective action game GPLv2 GPLv2 Forgotten Sages Games Released in 1995 as DOS shareware game,[262] in 2002 the game's source code was released under GPL by the developers. Development and porting by the game's community continued on SourceForge under the name OpenGlad.[263]
Glitch 2009 2013 MMO client and other parts under CC0 CC0 Tinyspeck In 2013, one year after the MMO was shut down, most of the artwork and parts of the code were released under the CC0 license.[264][265]
Gloom 1995 2017 FPS unlicense "for historical purposes" Black Magic In January 2017 the assembly and BlitzBasic 2 source code of the Amiga Doom clone Gloom was released as public domain software under unlicense on GitHub.[266] The assets were released "for historical and archiving purposes.".[267]
Glypha III 1990s 2016 Arcade MIT MIT John Calhoun On 27 Jan 2016, the source code, graphics, and sound data for Glypha III were released on GitHub with the source code being licensed under the MIT license.[268][269] Updated ports for MacOs and iPhone were created afterward.[270][271][272] A cross-platform OpenGL based port was released around May 2018 on github.[273]
Gothic 3 2006 2007 RPG Proprietary Proprietary JoWood Source code was opened by JoWood for the members of "Community patch project" from the game community in 2007.[274]
Grand Monster Slam 1989 2017 Fantasy sports game ? Proprietary Rolf Lakaemper, Hartwig Niedergassel In March 2017 the source code of the game became available via the Internet Archive.[275]
Gravity Force 2 1994 2008 Multidirectional shooter CC BY-SA 4.0 CC BY-SA 4.0 Jens Andersson & Jan Kronqvist On September 21, 2008 the developers of the Amiga shareware title Gravity Force 2 released the source code for "nostalgic interest" without specified license.[276] In April 2017 the authors clarified the game and source code license as CC BY-SA 4.0.[277]
Gunocide II 2000 2001 Galaga-like 2D shooter GPLv2 Freeware Alexander Bierbrauer and Oliver Weiler Developed around 2000.[278] After being succesless commercially published via a publisher,[279] the game was released as freeware and under GPL. 2002 ported to Linux and hosted on Sourceforge as "G2ex".[280][281]
H-Craft Championship 2007 2015 science fiction racing game zlib license Freeware Irrgheist H-Craft Championship was developed by the independent game studio Irrgheist[282] and released by Manifesto Games[283]/Akella in 2007.[284] In 2014, the developers released the game as freeware[285] and the source code under the zlib license in February 2015.[286][287]
Habitat 1985 2016 early MMORPG MIT MIT Randy Farmer and Chip Morningstar/Lucasfilm Games The Museum of Art and Digital Entertainment received the game's source code from its original developers,[288] and restored the code in a Hackathon.[289] In July 2016, the source code was uploaded to GitHub under MIT license.[290][291]
Hack 'n' Slash 2014 2014 Zelda-like puzzle game ? Proprietary Double Fine With the 1.0 release on September 9, 2014 also the source code of the game was released by Double Fine.[292][293]
Hacker Evolution: Source code 2007 2015 Hacker game ? Proprietary Exosyphen Released on May 11, 2015 for $49.95 by the indie game developer.[294]
Half-Life (video game) 1998 2011 FPS Proprietary Proprietary Valve Corporation Headers and some code distributed with the official SDK.
Half-Life 2 2004 ? FPS Proprietary Proprietary Valve Corporation Game code was officially released with the SDK.
Hammerfight 2009 2011 2D physic based combat game zlib license[295] Proprietary Konstantin Koshutin For the third Humble Indie Bundle[296][297] Ryan C. Gordon ported the underlying game engine, "Haaf's Game Engine", to Linux and Mac OS X, and released source code under the zlib license.[298][299] Relish Games released the original version of HGE 1.8.1 for Windows/DirectX to GitHub under zlib license, too.[300]
Haunts: The Manse Macabre 2012 2012 turn based strategy BSD[301] CC BY-NC-SA Rick Dakan The 2012 with $29,000 crowdfunded[302] and in Go programmed game was put on GitHub after the money for further development run out.[303][304] While a volunteer keeps updating the almost finished prototype,[305] the against the Go 1.0 API build game fails to compile with newer compilers and Go versions.
Heavy Metal: F.A.K.K. 2 2000 ? Proprietary Proprietary Ritual Entertainment Game code distributed with the official editing tools / SDK.
Heretic 1994 1999 FPS GPLv2 Proprietary Raven Software Game source released on January 11, 1999, relicensed to GPL on September 4, 2008.
Heretic II 1998 1998 FPS Proprietary Proprietary Raven Software Game code distributed with the official editing tools.
Hexen: Beyond Heretic 1995 1999 FPS GPLv2 Proprietary Raven Software Game source released on January 11, 1999, relicensed to GPL on September 4, 2008.
Hexen II 1997 2000 FPS GPL Proprietary Raven Software Game source released on November 10, 2000.
Highlander: The Last of the MacLeods 1995 2008 Action-adventure ? Proprietary Lore Design Limited Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Home Alone 2: Lost in New York 1992 2016 Action game ? ? Game source released of the NES game in 2016 by Frank Cifaldi after finding it on an old harddrive.[306][307]
Homeworld 1999 2003 Space Real-time strategy Non-commercial license[308] Proprietary Relic Entertainment Game source released 2003.[309] The source code became the base of several source ports to alternative platforms, like Mac,[310] Linux, Pandora,[311] Maemo/N900,[312] or Android[313][314] using the Simple DirectMedia Layer (SDL) cross-platform multimedia library. As the source code's license requirements limits further development significantly[315] the game's community aims for a re-licensing with the new IP holder Gearbox.[316] In September 2013 Gearbox responded positively to the idea for a re-licensing of the already published source code, noting their efforts in supporting the modding community.[317]
HoverRace 1996 2008 Racing originally time limited license / later non-commercial GrokkSoft HoverRace SourceCode License.[318][319] Freeware GrokkSoft Was first published under a time-limited license. In 2008 re-newed with an infinite duration license.[320]
Hover Strike 1995 2017 Shooter ? Proprietary Atari Corporation Made freely available on a Jaguar-dedicated Facebook group in May 2017.[321]
Hover Strike: Unconquered Lands 1995 2008 Shooter ? Proprietary Atari Corporation Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Hovertank 3D 1991 2014[135] FPS GNU General Public License Proprietary Flat Rock Software/id Software First 3D game by id Software and John D. Carmack.
Hundreds 2010 2010 Puzzle game ? ? Greg Wohlwend / Semi Secret Greg Wohlwend chose to open source his code in 2010,[322] partly with the intent to spur "non-coders" to try coding, as he had.[323][324] Programmer Eric Johnson of Semi Secret found the open source version and ported the game to iPad in a weekend before notifying Wohlwend,[323] which was later released commercially in an updated version.
Hypercycles 1995 2017 Shooter GPL freeware Bob Hays Released in January 2017 on GitHub.[325][326]
I-War (Atari Jaguar game) 1995 2008 Shooter ? Proprietary Imagitec Design Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
In Pursuit of Greed 1996 2014 FPS non-commercial use, "for educational and personal use only" Freeware (non-commercial) Mind Shear Software Based on Softdisk Publishing's "Raven engine" which powered also ShadowCaster. The game was released (including the engine) later by the developer as non-commercial freeware in 2014.[327][328][329]
Infinity 2002 2016 RPG Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License Freeware (non-commercial) Affinix Software Developed in 2002 as commercial Game Boy Color title (~90% finished) the game was never published. Finally released as non-commercial freeware with source code in August 2016.[330][331][332]
Inside a Star-Filled Sky 2011 2011 Top-down shooter public domain software public domain Jason Rohrer Inside a Star-filled Sky, for purchase for $12,[333] was put by developer Jason Rohrer into public domain,[334] like many other of his games.[335]
Jim Power in Mutant Planet 1992 2017 Platform game ? ? Digital Concept Around 2017 the source code of Jim Power was rescued by Piko Interactive.[336]
Iron Seed 1994 2013 Space trading and combat simulator GPL Freeware (audiotracks CC BY-SA by Andrew Sega) Channel 7 Released as freeware by the authors to promote the development of Iron Seed 2 in the 2000s. Source opened under the GPL by the developers in 2013.[337]
Kaiser II 1988 2003 economical simulation GPLv2 GPLv2 Ariolasoft / Carsten Strotmann In 2003 Kaiser II author Carsten Strotmann released the source code under the GPL as Free Software.[338][339]
Ken's Labyrinth 1993 2001 FPS Non-commercial license Freeware Ken Silverman Ken's Labyrinth was released as freeware on November 16, 1999. The source code under a non-commercial license followed on July 1, 2001.[340] A port to modern operating systems such as Windows and Linux using Simple DirectMedia Layer called LAB3D/SDL was created by Jan Lönnberg and released in 2002.[341] A version of the port which includes new higher resolution textures was also created by Jared Stafford.[342]
Kiloblaster 1992 2008 Arcade Own license[343] Freeware (with additional restriction) Epic MegaGames Allen Pilgrim declared the registered version freeware and released also the source code on August 4, 2008.[344][345]
Kingpin: Life of Crime 1999 ? FPS Proprietary Proprietary Xatrix Entertainment Game code distributed with the official SDK.
Kumquat & Cantaloupe 1996 2012 Maze undefined Freeware Dave Schofield The Amiga games Kumquat & Cantaloupe, originally released as shareware titles, were re-released as freeware with source code included by the author in November 2012.[346][347]
Kroz 1987 2009 Maze GPL GPL Apogee Software Game source released on March 20, 2009.
Larva Mortus 2008 2009 Top-down shooter only non commercial usage[348] Commercial Rake In Grass Czech independent video game developer Pavel Tovarys released the Torque 2D v1.1.3 based source code in 2009 under non-commercial conditions.[349][350] Several other games' source code were released too.[351] The code was taken offline after several games' IP were sold to another company. The source code is currently in no known repository on the web available.
Lemmings 1991 2010 Puzzle game ? ? Brutal Deluxe Brutal Deluxe released the source code of the Apple IIgs port of Lemmings[352] and a dozen other ports, like Neeka Electronic's Future Shock[353].
Lemonade Stand 1973 1979 Business simulation game Public domain software (?) Freeware Bob Jamison, Charlie Kellner / MECC The Applesoft BASIC source code was available since 1979.[354][355] The game was later ported to modern REALbasic and released as free and open-source software for many platforms like Windows and MacOS.[356]
Lemma 2014 2014 Voxel FPS open world parcour[357] MIT Commercial Evan Todd Despite an unsuccessful crowdfunding campaign in 2014,[358] Lemma was released commercially by the developer DRM-free and also on Steam. The source code is openly developed and available on GitHub under a MIT license.[359][360]
Lugaru 2005 2010 / 2016 (assets) Action-adventure game GPLv2 CC BY-SA 3.0 Wolfire Games Open sourced with the first Humble Indie Bundle by Wolfire Games.[361] In November 2016 David Rosen relicensed all assets under the open content CC BY-SA 3.0 Creative Commons license which makes Lugaru a fully free video game.[362] In begin 2017 an open source HD version followed.[363][364]
Magic Land Island (now Pocket Island) 2011 2012 Casual game MIT license CC BY-NC-SA Wooga Magic Land Island was launched during the GDC Europe in August 2011. In June 2012 the HTML5 game was open sourced under the name Pocket Island on GitHub under MIT license and with the assets under Creative Commons license CC BY-NC-SA.[365][366]
Magus 1995 2014 Rogue-like ? Freeware Ronny Wester Around 2014 archived on GitHub from other now offline sources.[367] A SDL port is in progress.[368] In 2000 Wester released also the Borland Pascal 7 source code of Cyberdogs (excluding some libraries he had licensed) on his website.[369]
Maelstrom 1992 1995/2010 Shoot 'em up GPL CC-BY Ambrosia Software Asteroids clone. 1995 source released under GPL. In 2010 Andrew Welch and Ian Gilman released the game's contents under a Creative Commons license.[370]
Marathon 2: Durandal (now Aleph One) 1995 2000 FPS GPL Proprietary Bungie Released by Bungie on January 17, 2000.[371]
MechCommander 2 2001 2006 Real-time tactics Shared Source Limited Permissive License[372] Proprietary FASA Interactive/Microsoft Source opened under a Shared Source license by Microsoft in August 2006.[373][374] As of 2017 there is a project fork on GitHub with the goal to port the source code to Linux.[375]
MegaBall 1991 2012 Breakout clone Apache license v2 Apache license v2 Mackey Software/Ed Mackey The Amiga game MegaBall was programmed by Mackey Software in 1991-1993. Inspired by Taito's Arkanoid it has several features more. The original author released in 2012 the source code of MegaBall under the Apache license v2.[376][377]
Meridian 59 1995 2012 MMORPG GPLv2 (excluding compression and audio libraries) Freeware Archetype Interactive As of February 2010 Meridian 59 has been turned over to the original technical developers, Andrew and Chris Kirmse. On September 15, 2012 they released the game to the public as Freeware and most of the source code under the GPLv2 license.[378]
Miner Wars 2081 2012 2013 6DOF Space Shooter game own proprietary license[379] Proprietary Keen Software House 6DOF action-survival space-shooter simulation-game set in the year 2081. Full game and engine source code released under a restrictive license.
Monster RPG 2 2010 2012 JRPG zlib license zlib license Nooskewl After a successful Indiegogo campaign, released by Nooskewl under a Public domain like license ("Give it Your Own License") on November 11, 2012.[380][381] Later changed to zlib license, and the content sold again to be able to pay the server bills.[382]
MiG Alley 1999 2001 Flight simulation own license Proprietary Rowan Software/Empire Interactive Source opened by Rowan Software/Empire Interactive in 2001.[383][384]
Mr. Do! (for Gameboy) 1992 2007 Arcade source opened without defined license without defined license Universal Entertainment Corporation Source opened of the game boy version by developer Wesley Knackers in 2007 on his website.[385][386]
Myth (series) 1998 2001 Real-time tactics source opened without defined license Proprietary Take 2 Interactive/MumboJumbo Source opened by Take 2 Interactive/MumboJumbo to the game community in 2001.[387][388]
Myst Online: Uru Live 2007 2010 MMORPG GPLv3 Proprietary Cyan Worlds "Myst Online: Uru Live" struggled to attract subscribers and was canceled after its first year. Cyan release the game as an open source game in 2010.[389]
Natural Selection 2002 2014 FPS GPLv2 (most code) / custom (external libraries)[390] Proprietary Unknown Worlds Entertainment In January 2014 Unknown Worlds released the source code for download on GitHub.[391]
Nanosaur 1998 2003 FPS Own restrictive license Proprietary Pangea Software Around 2003 the Nanosaur source code was made available by the developer under a restrictive license.[392]
NoGravity 1996 2005 3D space space shooter / Wing Commander GPLv2 GPLv2 realtech VR Source code released by realtech VR on February 16, 2005.[393]
Nothing to Hide 2013 2013 Stealth game CC0 CC0 Nicky Case The crowdfunded surveillance/privacy themed video game prototype by indie game developer Nick Liow was crowdfunded and opened under CC0 on GitHub between 2013 and 2015.[394][395][396][397][398]
The Operative: No One Lives Forever 2000 2010 FPS GPL Proprietary Monolith Productions In 2001, Monolith Productions released a set of editing tools for No One Lives Forever that included the level editor and model editor used for development.[399] The team also released the source code for NOLF (version 1.003 on Windows) that year to "support the fan base by offering the tools to create their own levels".[400][401] It is available both as a download, as well as on the Game of the Year Edition CD-ROM.[399] Years later around 2013 Lithtech source code became available on GitHub under GPL,[402] and work for merging game code and engine started.[403]
No One Lives Forever 2: A Spy in H.A.R.M.'s Way 2002 2011 FPS GPLv2[404] Proprietary Monolith Productions Source code released by Monolith Productions/Sierra Entertainment as part of a modding toolkit.[405]
Pararena 2 1992 2016 Action sport game MIT MIT John Calhoun On 27 Jan 2016, the source code was released on GitHub licensed under the MIT license.[406][407]
Pariah 2005 2005 (partly) FPS Proprietary Proprietary Digital Extremes Game code available on GitHub.
PaybackTime 2 1997 2014 turn-based tactics game public domain software public domain Niko Nevatie and Kari Luojus The turn-based tactics game, inspired by Laser Squad and UFO: Enemy Unknown, was developed by two Finish students in Turbo Pascal and x86 assembly. They marketed their game as shareware for DOS in 1997.[408] The authors released the game in August 2014 as public domain software, including the assets.[409]
Penumbra: Overture 2007 2009 Survival horror with FPS aspects GPL Proprietary Frictional Games Developed by Swedish[410] developer Frictional Games, the game blends the genres of survival horror, first-person shooter, and adventure. Open sourced with Humble Indie Bundle.[411]
Pinball Construction Set 1983 2013 pinball video game MIT license MIT license Bill Budge, Electronic Arts In 2013, Budge released the source code to the Atari 800 and Apple II version of Pinball Construction Set to the public on GitHub under the MIT license.[412][413][414]
Pirate Adventure 1978 1980 adventure game ? ? Scott Adams (game designer) The source code for Pirate Adventure was printed in the December 1980 issue of BYTE, with an addendum in April 1981.[415][416] This enabled others to discover how the engine worked and to create their own adventures using this or a similar design.
Postal 1997 2016 Top-down shooter GPLv2 proprietary Running With Scissors In 2015 the Running with scissors developers announced that they will release the source code of the game "if someone promises to port it to the Dreamcast".[417] In June 2016 the developers gave the source code to a community developer who ported the game to Linux for the OpenPandora handheld.[418][419] On December 28, 2016, the source code was released on Bitbucket under the GPLv2.[420][421]
Postal 2 2003 2003 (partly?) FPS Proprietary Proprietary Running With Scissors Some game code and tools distributed with the official game release.
Preppie! 1982 2016 action game ? ? Russ Wetmore / Star Systems Software In January 2016 Russ Wetmore released the source code of his Atari 8-bit family games Preppie!, Preppie II and Sea Dragon to the public on the Internet Archive.[422]
Prince of Persia 1989 2012 Cinematic platformer Proprietary Proprietary Jordan Mechner Apple II source code was long-thought-lost,[423] but was found again and released in 2012.[424] A port of the assembly source code to C and SDL as backend was made by a community programmer.[425]
Project: Starfighter 2001 2008 Shoot 'em up GPL[426] Proprietary[427] Parallel Realities
Quake 1996 1999 FPS GPL Proprietary Id Software Game source released on December 21, 1999.
Quake II 1997 2001 FPS GPL Proprietary Id Software Game source released on December 22, 2001.
Quake III Arena 1999 2005 FPS GPL Proprietary Id Software Game source released on August 19, 2005.
Return to Castle Wolfenstein 2001 2010 FPS GPL Proprietary Id software The source code for Return to Castle Wolfenstein and Enemy Territory was released under the GNU General Public License (GPL) on August 12, 2010.[428]
Revenge of the Titans 2010 2011 Tower Defense, RTS Custom all-permissive[429] Proprietary Puppy Games Java based game. Source code was released by Puppy Games with the success of the second Humble Indie Bundle.[430]
Rise of the Triad 1994 2002 FPS GPL Proprietary Apogee Software/3D Realms Game source released on December 20, 2002.
Roboforge 2001 2008 Multiplayer Strategy game "RoboForge, Personal, Non-Commercial Use End User License" Freeware Liquid Edge Announced the game in July, 2000[431] by Liquid Edge the game was released on May 23, 2001.[432] From July 2008 RoboForge became an Open Source project with the source code for the Java-based client and server under a non-commercial license and as freeware.[433] The game's community continues development.
Rocky Racers 2002[434] 2004[435] Racing game Non-Commercial license Freeware Positech Games Released around 2002 by Positech Games, the game's C++ source code was released in July 2004 to the public for free.[436]
Rowan's Battle of Britain 2000 2001 Flight simulation Empire Interactive License Proprietary Rowan Software/Empire Interactive Source opened by Rowan Software/Empire Interactive in 2001.[383][437]
Rune (video game) 1999 2000 FPS Proprietary Proprietary Human Head Studios Headers and some code distributed with the official SDK.
RuneSword II 2001 2004[438] Turn-based strategy Public domain software[439] Public Domain CrossCut Games In 2004 CrossCut Games released the game into the public domain on SourceForge.[440] Since then there is continuous development by the community on the game.[441]
Ryzom 2004 2010 MMORPG AGPL CC Nevrax In response to the folding of Nevrax, the Free Ryzom Campaign was launched in order to gather enough funds from donations ("Crowdfunding") from the community to purchase Ryzom and release the game as free software. The campaign was almost successful with €172,988 of the required €200,000 gathered.[442][443] On May 6, 2010, Winch Gate announced the full release of source code and artwork, and a partnership with the Free Software Foundation.[444][445]
Savage: The Battle for Newerth 2003 2007 online Real-time strategy, FPS no license/proprietary Freeware[446] S2 Games The game was turned freeware by S2 Games on September 1, 2006. In 2007 the source code became available to the game community,[447] who now continues development.[448]
Sea Dogs: An Epic Adventure at Sea 2000 2009 pirate game ? Proprietary Akella In 2009 Akella agreed to hand the source code of Sea Dogs' game engine to the game community on end-of-support.[449]
Serious Sam (Serious Engine) 2001 2016 FPS GPLv2+ Proprietary Croteam In March 2016, Croteam released Serious Engine v1.10 as free and open-source software on GitHub under the GNU General Public License.[450][451]
Seven Kingdoms 1996 2008 RTS GPL GPL and Proprietary* Enlight Source code released by Enlight in November, 2008. *Music is proprietary[452][453]
Seven Kingdoms II 1999 2009 RTS GPL Proprietary Enlight Source code released in August, 2009.
Severance: Blade of Darkness 2001 2001 (partly) FPS Proprietary Proprietary Rebel Act Studios Game logic written in Python. Scripts are located in the game directory.
Shadowgrounds 2005 2011 Shoot 'em up own non-commercial license[454] Proprietary Frozenbyte Game source released with a Humble Indie Bundle by Frozenbyte on April 22, 2011.[455]
Shadow Warrior 1997 2005 FPS GPL Proprietary 3D Realms Game source released on April 1, 2005.
Shogo: Mobile Armor Division 1998 1998 FPS GPL Proprietary Monolith Productions SDK released 1998, including the game logic for modders.[456] The Lithtech engine was not included as source code. Years later around 2013 Lithtech source code became available on GitHub under GPL,[402] and work for merging game code and engine started.[403]
Siege of Avalon 2000 2003 RPG LGPL Proprietary Digital Tome Source code released June 23, 2003.[457] Later one of the original developers announced the preparation of a re-release of SOA, but nothing came out of it.[458]

In September 2017 a community developer managed to fix the dependencies of the Open source release, recompile the executable, fixing several bugs and introducing higher resolution support for the game.[459]

Silent Hunter II 2001 2002 submarine simulation ? Proprietary Ubisoft Around 2002 Ubisoft had ended the official support while still significant issues existed. Therefore, Ubisoft enabled the game's community at Subsim.com to fix the game themselves by giving them the source code.[460] The fans raised $7000 for an unofficial patch development project which fixed most of the issues.[460] The community extended Silent Hunter II also content wise significantly with expansion packs or texture upgrades.[461][462]
SimCity (Micropolis) 1989 (as SimCity) 2008 (as Micropolis) City-building game GPLv3[463] GPLv3 Maxis (Will Wright/Don Hopkins) Source code released by Don Hopkins under GPL in 2008. For trademark reasons released under the original working title Micropolis, also known as OLPC SimCity.[464]
Sin & SiN: Wages of Sin 1998 1998 FPS Proprietary Proprietary Ritual Entertainment Game code was officially released.
Sissyfight 2000 Returns 2014 2018 Multiplayer MIT license CC BY Zimmerman, Clark, and Bhatnagar On April 30, 2013, Zimmerman, Clark, and Bhatnagar announced a crowdfunding campaign on Kickstarter to revive Sissyfight.[465] The campaign was funded on May 30, 2013 with a final total of $22,735.[466] First Beta versions were released 2014. On February 9, 2018 the source code was released under the open source MIT license and the assets under the CC BY Creative Commons license on Github.[467]
Soliter 1994 2009[468] Puzzle game ? Freeware Oldsoft Zdnek Stary developed at the Czech development studio Oldsoft the solitair game Soliter for the ZX Spectrum which got released in 1994. The game was released by the author in 2005 on his homepage for download, in 2009 the assembly source code followed as scan.[469]
Soldier of Fortune (video game) 2000 ? FPS Proprietary Proprietary Raven Software Game code distributed with the official SDK.
Soldier of Fortune II: Double Helix 2002 ? FPS Proprietary Proprietary Raven Software Game code distributed with the official SDK.
Sopwith 1984 2000 Shoot 'em up GPL GPL David L. Clark The C and x86 assembly source code to Sopwith was released in 2000,[470] at first under a non-commercial use license, but later under the GNU GPL at the request of fans.[471]
Soul Ride 2000[472] 2003 Snow board simulation/sport game GPL[473] Proprietary Slingshot Game Technology On 20 Jan 2003 Soul Ride's game engine source code was released to allow ports to alternative OSes.[474]
Spacebase DF-9 2013 2015 Space simulator CPAL ? Double Fine After Double Fine ended the support of the controversy ridden and incomplete game on end of 2014,[475] fans have been working to continue the game's development with the availability of the source code in May 2015 under the CPAL open-source license.[476] First patch became available in October 2015.[477]
Space Engineers 2013 2015 space sandbox game proprietary commercial Keen Software House On May 14, 2015 the development studio made the source code freely available to the game's community for easier modding on GitHub under a proprietary license (non-open source license).[478][479][480]
Spacewar! 1972 2003 (?) Space combat ? ? Steve Russell Source code became available around the 2003.[481]
Spear of Destiny 1992 1995 FPS ID SOFTWARE LICENSE[482] Proprietary id Software The source code of Wolfenstein 3D, which also covered Spear of Destiny, was released on July 21, 1995.
Speed Haste 1995 2012 racing video game public domain like license proprietary Javier Arevalo Baeza In 2012 the game's developer Javier Arevalo Baeza released the Borland C source code (minus some commercial library part) for "you can do whatever you want with this code" on GitHub.[483]
Planet Blupi 1997 2017 Platformer GPLv3 GPLv3 Epsitec SA / Daniel Roux, Denis Dumoulin, Mathieu Schroeter Planet Blupie was freed (source code and all media files) and ported to all major platforms (Linux, macOS and Windows) for it's 20th anniversary, released Open source under GPLv3 on github in 2017.[484][485] Speedy Blupi, part of Blupi series, has been released as freeware by EPSITEC too and is available at blupi.org.[486]
Star Control II (now The Ur-Quan Masters) 1992 2002 Action RPG GPL Cc-by-nc-sa Toys for Bob (Fred Ford / Paul Reiche III) Source code of the 3DO version GPL-released in 2002.[487]
Star Raiders 1979 2015 space combat simulator ? ? Aric Wilmunder / Atari The commented assembly source code scan of Star Raider became available in October 2015 in the Internet Archive as scan.[488] Aric Wilmunder opened it up with several other artifacts of his gaming career (e.g. SCUMM).[489] The community typed in the source code double checked in a GitHub project.[490] Shortly before a reverse engineering project was finished, too.[491] A true sequel, also called Star Raiders II, had been under development for some time by Aric Wilmunder. The never released prototype source code was posted publicly in December 2015.[492]
Star Ruler 2 2015[493] 2018 Real-time strategy, 4X MIT license CC BY-SA Blind Mind Studios Released on GitHub as an open-source project, including assets under the CC-BY-NC (but not music) on July 22, 2018.[494][495]
Star Trek: Voyager – Elite Force 2000 2000 FPS Proprietary Proprietary Raven Software Game code distributed with the official GDK.
Star Trek: Elite Force II 2002 2003 Action RPG non-commercial own license (only serverside part) proprietary Ritual Entertainment In November 2003 Ritual Entertainment released the source code of their server-side code base for multiplayer gaming under a non-commercial license.[496][497]
Star Wars Jedi Knight II: Jedi Outcast 2002 2013 First/Third person shooter GPLv2 Proprietary Raven Software Release of the source code by Raven Software and Activision coincided with the closing of LucasArts by Disney.[498]
Star Wars Jedi Knight: Jedi Academy 2003 2013 First/Third person shooter GPLv2 Proprietary Raven Software Release of the source code by Raven Software and Activision coincided with the closing of LucasArts by Disney.[498]
Starshatter: The Gathering Storm 2004 2011 Space combat simulator New BSD License Freeware Destroyer Studios / Matrix Games Source code released by Destroyer Studios/Matrix Games on December 14, 2011.[499][500]
Strange Adventures in Infinite Space 2002 2005/2009 Space Roguelike GPL Freeware Digital Eel Source was released under GPL by Digital Eel in 2005.[501][502] Content became freeware 2009.[503]
Strife: Veteran Edition (Strife remaster) 1996 2014 FPS GPLv3 Proprietary Samuel Villarreal / Night Dive Studios In December 2014, Night Dive Studios coordinated the re-release of the 1996 first-person shooter role playing hybrid game Strife as Strife: Veteran Edition, after acquiring rights to the game. Because the game's source code had been lost, a derivative of the Chocolate Doom subproject Chocolate Strife was used as the game's engine, with its original programmers being contracted to do additional coding for the re-release. The source code of Strife: Veteran Edition has been made available under GPLv3 on GitHub by Samuel Villarreal and Night Dive Studios on December 12, 2014.[504] While this was the first source code opened for a Night Dive Studios Studio's game, it was announced more will follow,[505] for instance for System Shock 1.[506]
Stunt Copter mid 1980 ? Arcade Public domain software Public domain Duane Blehm / HomeTown Software After Duane Blehm death in 1988, his parents released Stunt Copter's and his other games' (like ZeroGravity, Cairo Shootout and PUZZ'L) binaries and source code into the public domain.[507]
Stellar Conquest III: Hostile Takeover 1994[508] 2006 Stellar Conquest inspired Space simulation open source freeware (non-commercial) Freeware (non-commercial redistribution allowed) NecroBones / Ed T. Toton III The Turbo Pascal 6 source code for the VGA DOS game was released in February 2006 together with the game itself as freeware by the developer.[509]
Stellar Frontier 1997 2008 Space simulation STARDOCK SHARED SOURCE STELLAR FRONTIER LICENSE (non-commercial license)[510] STARDOCK SHARED SOURCE STELLAR FRONTIER LICENSE (non-commercial license) Stardock Stellar Frontier was developed by Doug Hendrix in 1995 and was later licensed and published by Stardock. On August 4, 2006, Stardock Systems closed the official master server. On November 18, 2008, the game source code was released under an own non-commercial license.[511] As result, the game's community took over the support of the game and improved the game, fixed the bugs and security holes with self-made patches.[512]
Super Lemon Factory 2012 2012 Text adventure proprietary proprietary Initialsgames Based on the Cannabalt engine for iOS, and inspired by it to release the source code.[513][514]
Supernova 1987 2009 Text adventure GPL GPL Apogee Software Game source released on March 20, 2009.
System Shock 1994 2018 FPS GPLv3 Proprietary Night Dive Studios In April 2018 the Mac version's source code was released by Night Dive on github,[515] fulfilling a 2016 promise.[516][505][506] After one month of development, a cross-platform source port, called "Shockolate", for modern compilers and platforms was released by community developer Chad Cuddigan.[517]
Taxman 1981 201? pacman clone ? ? H.A.L. Labs / Brian Fitzgerald Apple II pacman clone from 1981. In August 2015 Rebecca Heineman announced that original developer Brian Fitzgerald allowed to release the source code.[518][519] GitHub repository is still empty as of February 2018.[520]
Team 47: GoMan 1997[521][522] 1998 Mech game public domain software public domain 47-TEK Released artwork and source code to public in May 1998.[523][524] As the Internet Archive has not saved the content of the now offline GoMan page in the end of 1990s, currently there are no known mirrors on the web; the source code seems as of 2017 to be lost.[524]
Tempest 2000 (Atari Jaguar) 1994 2008 Tube shooter ? Proprietary Llamasoft Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Terminal Velocity 1995 2015 flight game ? ? Mark Randel / Terminal Reality Became available under a NDA in June 2015.[525] Work on an updated version for modern system started immediately.[526]
The Clue! 1994 2000 role-playing adventure game own license own license / Freeware Neo Software In 2000 the source code was released to the public.[527][528] The game is since then ported to modern platforms via SDL and receives still updates by the community (2015).[529]
The Guild of Thieves 1987 2017 adventure game ? ? Magnetic Scrolls In June 2017 Magnetic Scrolls worked on recovering the source code of their classics from tapes to remaster and re-release them.[530][531]
The Wizard's Castle 1980 2004 role-playing adventure game ? ? Joseph R. Power The BASIC source code of the 1980 developed game was published by the developer in the July/August 1980 issue of Recreational Computing.[532][533] Ports to other systems followed afterwards.[534]
The Pit Puzzle 1997 2011 Puzzle game Apache 2.0 License Freeware[535] Abe Pralle / Plasmaworks The DOS game source code was released around 2011 by the author Abe Pralle under Apache 2.0 License on GitHub.[536]
The Wheel of Time 1999 1999 FPS Proprietary Proprietary Legend Entertainment Game code and tools distributed with the official game release.
To Heart 2 2004 2006 Visual novel GPL Proprietary Aquaplus Its source code was released by Aquaplus under the GNU General Public License on December 22, 2005 along with the source code for Arurū to Asobo!!, Tears to Tiara, and Kusari.[537][538] This decision was made due to the inclusion of Xvid derived code; Xvid being distributed under the same license.[537][538] The source code for all four games is distributed upon request in CD-R format.[537] A copy of the original source code is hosted on GitHub,[539] as also an continued engine project.[540]
To the Moon 2011 2014 role-playing game GPLv2 Proprietary Freebird Games To the Moon was developed using RPG Maker XP engine in 2011. In January 2014 To the Moon was also released for OS X and Linux with the Humble Bundle X.[541] Edward Rudd ported the game with the GPLv2 RPG Maker XP game engine recreation MKXP,[542][541] other ports followed later.[543] Also a successor game by Freebird games, "A Bird Story", was ported to Linux under usage of MKXP.[544]
Tornado 1993 2017 combat flight simulator ? Proprietary Digital Integration / Interplay Entertainment In March 2016 in the Tornado's community forum, rumors surfaced that Interplay Entertainment was working on a re-release of the game for digital distribution, based on the original source code.[545] The assembly source code finally surfaced in January 2017 on github.com.[546][547]
Tread Marks 2000 2017 Tank Combat/Racing GPLv3 Freeware Longbow Digital Arts / Seumas McNally Won in 2000 the Seumas McNally Grand Prize. On January 20, 2017 the source code was released as open source on github.com and the game itself as freeware.[548][549] A port to Linux and MacOS is in progress.[550] In September 2017 a version for the Linux-based OpenPandora was released.[551]
Treasures of a Slaver's Kingdom 2007 2010 Z-machine Text adventure game Freeware Freeware Cumberland Games & Diversions S. John Ross released the commercial Treasures of a Slaver's Kingdom, which won the XYZZY Award 2007 for the best NPC, in 2010 with Z-machine source code as freeware.[552] More source code of text adventure from the 1970s and 1980s are available at the archive.[553]
Trevor McFur in the Crescent Galaxy 1993 2008 Shoot 'em up ? Proprietary Flare II Released by defunct Jaguar Sector II website under a CD compilation for PC titled Jaguar Source Code Collection in August 24, 2008.[76][75] Source code was provided by Atari historian Curt Vendel.[77]
Tribal Trouble 2005 2014 RTS GPLv2 Freeware Oddlabs In September 2014 the game's source code was released to the public on GitHub and is now open source under the GPLv2.[554] Development continues in a community fork.[555]
Tribes 2 2001 2012 FPS Torque engine under MIT, rest is proprietary Freeware Dynamix Many commercial titles were developed using the Torque engine.[556] GarageGames released Torque 3D under the MIT License on September 20, 2012.[557] The Tribes 2 source code beside the Torque engine is not available.[558]
Tron 2.0 2003 2009 FPS ? ? Monolith Productions Source code released with Lithtech Jupiter Enterprise b69 engine.
Triplane Turmoil 1996 2009 side-scrolling dogfighting flying game GPLv3 GPLv3 Dodekaedron Software In 1996 Triplane Turmoil was originally released as shareware DOS game. In 2009 Dodekaedron Software Creations Oy placed Triplane Turmoil's source code, documentation, images and sounds under the GPLv3, hosted on Sourceforge.[559][560] The community continued the support and ported the game to other platforms (Linux, Windows) via SDL.
Tyrian (now OpenTyrian) 1995 2007 Scrolling shooter GPLv2 Freeware/CC-BY 3.0 US[561][562] World Tree Games Productions / Epic MegaGames (Jason Emery, Daniel Cook) The OpenTyrian team ported the closed-source Pascal code of Tyrian to C with permission of Jason Emery in February 2007. The graphic artist Daniel Cook released the artwork shortly after.
Ultima: Escape from Mt. Drash 1983 2003 Role-playing video game Proprietary Proprietary Keith Zabalaoui / Sierra On-Line On 11 June 2003, the game was ported to PC (under GPLv2 license) by Kasper Fauerby based on the original BASIC source code and some smaller binary reverse engineered parts.[563]
Unreal 1998 2008 FPS source opened to the community under NDA Proprietary Epic MegaGames Headers and some code distributed with the official SDK. Also, some pre-release version (v0.87) is available on the internet. Around 2008 access to source-code was granted by Epic MegaGames for the game community.[564] In 2015 Tim Sweeney announced that he hope to be able to open source one day the engine to the public.[565]
Unreal Tournament 99 1999 ? FPS Proprietary Proprietary Epic Games, Digital Extremes, Legend Entertainment Headers and some code distributed with the official SDK.
Unreal Tournament 2003 2002 ? FPS Proprietary Proprietary Epic Games Game code was officially released.
Unreal Tournament 2004 2004 ? FPS Proprietary Proprietary Epic Games Game code was officially released.
Unreal Tournament 3 2007 ? FPS Proprietary Proprietary Epic Games Game code was officially released.
Uplink 2001 2003 Hacking simulation Proprietary Proprietary Introversion Software Mid-2003 Introversion Software started selling the source code for $45. Usage beside modding and fixing of the game are not permitted by the license.[566] Source code of the games Darwinia + Multiwinia and DEFCON was later sold too.[567]
Unreal II: The Awakening 2003 ? FPS Proprietary Proprietary Legend Entertainment Game code and tools distributed with the official game release.
Urban Chaos 1999 2017 Action-adventure game MIT license Proprietary Mucky Foot In May 2017 Mucky Foot's Mike Diskett released the source code of Urban Chaos under the MIT license on GitHub.[568]
Vangers 1998 2016 racing and role-playing genre GPLv3 Commercial K-D Lab In March 2016, Vangers source code was released[569] under GPLv3 license. Data was not freed though, so one still needs data files from Steam or GOG.com released in order to run the game.
VGA Civil War Strategy Game 1995 2017 turn based strategy MIT MIT W. R. Hutsell In 2017 Mr. Hutsell gave the source code of VGA Civil War Strategy Game to Dave Mackey, who ported the game for modern platforms (Windows, Mac, Linux) with the help of SDL and other open source libraries from QuickBASIC to QB64.[570] The source code is released on github under a MIT license.[571]
Vox 2013 2015 open world simulation GPLv3 commercial AlwaysGeeky Games Vox started life as an entry into the Ludum Dare competition.[572][573] The game was successfully Steam Greenlighted on November 12, 2013.[574] Around end of 2015 the source code of Vox was made available as open-source software under the GPLv3 on GitHub.[575]
Voxelquest 2014 2016 open world simulation MIT MIT Gavan Woolery After a successful crowdfunding project on Kickstarter to develop an open-world simulation game in 2014,[576] Gavan Woolery developed several iterations of the game's engine. After running out of funding for further development, he open-sourced with support of the backers the game's engine on github.com under MIT license in August 2016.[577][578]
Wander 1974 2015 Text adventure public domain (?) public domain (?) Peter Langston In April 2015 the lost thought source code of Wander, one of the earliest mainframe text adventures, could be acquired from the original author.[579][580]
Warlords Battlecry III 2004 2006 RTS Own proprietary license Proprietary Infinite Interactive/Enlight Software On 24 May 2006, the Warlords Battlecry III source code became available to the public. Members of the community (who signed a NDA) have been entitled distributors, which have the legal permissions to allocate copies of the Warlords Battlecry III source code.[581][582] The source code release resulted in the development of several community-made fan patches[583][584] and mods.
War Worlds 2013 2014 RTS Own permissive license[585] Own permissive license Codeka / Dean Harding The mobile strategy game was originally released commercially,[586] and later released to the public to allow the community to continue the support of the game.[587][588] With help of the community the game's main developer has continued the support since then.
Warfare Incorporated (now Hostile Takeover) 2003 2014 RTS BSD license BSD license Spiffcode In July 2014 the game's source code and content got open sourced with the BSD license under the name "Hostile takeover" on GitHub.[589][590] As result the game was ported by the game's community to alternative platforms like the Pandora handheld.[591]
Warzone 2100 1999 2004/2008 RTS GPLv2 GPLv2, CC Pumpkin Studios/Eidos Interactive 3D real-time strategy game with a unit design system. First source part was released by Pumpkin Studios/Eidos Interactive in 2004 and the rest was released in 2008.[592]
Witchaven series 1995 2006 FPS non-given Proprietary Capstone Software Around 2006 Les Bird, a programmer from the 1996 folded game development company Capstone Software, released the source code of the abandoned games Witchaven, Witchaven II, William Shatner's TekWar and Corridor 7: Alien Invasion.[593]
Wolfenstein 3D 1992 1995 FPS ID SOFTWARE LICENSE[482] Proprietary id Software The source code of Wolfenstein 3D, which also covered Spear of Destiny, was released on July 21, 1995.
Wolfenstein: Enemy Territory 2003 2010 FPS GPLv3 Proprietary Splash Damage/id Software Game source released on August 12, 2010.
Word Whiz 1988 2009 Educational game GPL GPL Apogee Software Game source released on March 20, 2009.
World in Conflict (server code) 2007 2017 Real time strategy game GPLv2[594] proprietary Ubisoft Game source released in 2017 by ubisoft after support ended in 2014.[595]
World Train Royale 2009 2011 Tycoon game ? Freeware Versus Software Sold around 2009 for 10 dollars,[596] the game source code was released on 26 June 2011 on SourceForge.[597][598]
Worms Armageddon 1999 2002 Deathmatch game ? Commercial Team17 Around 2002 Team17, impressed by the reverse engineering on Worms Armageddon for "Silkworm",[599] gave David "Deadcode" Ellsworth access to the source code.[600] Over the next years he created unofficial patches, until he joined Team17 in 2006. Updates are still created as of 2015.[601]
Xargon 1993 2008 Platformer own license[343] Freeware (with additional restrictions) Epic MegaGames Game source released in 2008 by the programmer Allen Pilgrim.[602] A SDL port followed later by Malvineous.[603]
Xenonauts 2014 2015 Turn-based tactics ? Proprietary Goldhawk Interactive Shortly after the release of the stable version Goldhawk Interactive allowed selected members of the community to access the source code.[604] This resulted in the community edition of the game (Xenonauts:Community Edition, X:CE), which continues development of an independent branch of the game, adding new features and bugfixes.[605]
XIII 2003 2018 (partly) FPS Proprietary Proprietary Ubisoft Paris The UnrealScript source code of the game was made available on GitHub in January 2018.[606]
Zork (also known as Dungeon or Dungeon Adventure) 1977 1978 Text adventure Public domain software Public domain Robert M. Supnik / Infocom Public domain software ports with source code based on the first "Dungeon" version of Zork, are available in various repositories.[607][608] Also, Infocom allowed the distribution of the early Fortran version. Original version from MIT.[609][610]

Games with available source code

The table below with available source code resulted not from correct releases of companies or IP holders but from unclear release situations, like lost & found and leaks of unclear legality (e.g. by an individual developer on end-of-product-life) or undeleted content.[611]

   Title    Original release Source code found or leaked Genre Original developer Additional information
Actua Soccer 96 1996 1996 sports game Gremlin Interactive A demo CD that shipped with a game magazine accidentally contained the C++ source code of the game.[612][613]
Aliens versus Predator 2 2001 2002 FPS Monolith Productions Source code released on the Monolith Productions FTP server in 2002, then quickly taken down.[614]
Asteroids 1979 1996 Arcade Atari Source code of Asteroids in the Atari 7800 version was released in physical form by Atari Sunnyvale on their closure 1996. Together with Ms. Pac-Man, Dig Dug, Robotron: 2084 and eight further games reconstructed by the Atari-Museum and published later.[615][616] Ports for modern FPGAs were made later.[617]
Art of Fighting 1992 2014 Fighting game SNK Found in a PC9821 (neogeo dev machine) the full source code of the Art of Fighting ASM 68k source code in 2014.[618][619]
Beatmania 5th Mix 1999 2000 Music video game Konami With the 2000 Japanese PSX game Beatmania Best Hits there was mistakenly included the source code for the 1999 game Beatmania 5th Mix.[620]
Blood 1997 2000/2010 FPS Monolith Productions In 2000, partial source code of an alpha version was leaked. In 2010, the complete alpha source code was leaked.[621] Using the code as reference, a reverse engineered build of the final version was created by Alexander Makarov for source ports around 2017.[622]
B.O.B. / Space Funky B.O.B. 1993 2008 Side-scrolling game Electronic Arts On September 12, 2008 the source code of the SNES version became available as it was found on an eBay-bought hard drive.[623]
Captain Comic 1988 2012 Platformer Michael Denio In September 2012 the source code of the NES version was offered on ebay for $439.[624][625]
Chicken Run 2000 2011 Stealth game Blitz Games In May 2011 the Sega Dreamcast source code became available, found by a collector on a Dreamcast Dev Kit's harddrive.[626][627]
Dark Engine (Thief, Thief II, System Shock 2) 1993 2009/2010 Stealth game Looking Glass Studios In 2009, a complete copy of the Dark Engine source code was discovered in the possession of an ex-Looking Glass Studios employee who was at the time continuing his work for Eidos Interactive.[628] In late April 2010, a user on the Dreamcast Talk forum disassembled the contents of a Dreamcast development kit he had purchased.[629] Later, significant updates for the Dark Engine-based games were published.[630][631][632]
Dark Reign 2 2000 2011 RTS Pandemic Studios Released by a former developer of Pandemic Studios under LGPL to prevent that the game become unsupported Abandonware.[633][634] Legal status unclear.
Donkey Kong 1981 2008 Platformer Nintendo In August 2008 the source code of Donkey Kong in Atari 800 6502 assembly was published at the AtariAge forum by Curt Vendel (the Atari Flashback designer),[635] and was discussed there by the original developer, Landon Dyer.[636]
Double Dragon II: The Revenge 1989 2013 Beat em up Technōs Japan In 2013 the Internet Archive put the undeleted assembly sources (DRGNSRC.LZH) of the DOS version for download.[637][638]
Empire 1977 197? turn-based wargame Walter Bright At some point, someone broke through the security systems at Caltech, and took a copy of the source code for the FORTRAN/PDP-10 version of the game.[639] This code was continually modified, being passed around from person to person and ported to other system e.g. to VAX/VMS OS.[640]
Eve Online 2003 2011 Space strategy MMO CCP Games On 20 May 2011 someone released the EVE Online source code on a GitHub repository.[641] After the source code was online four days, CCP issued a DMCA take-down request which was followed by GitHub.[642]
Extreme-G 3 2001 2015 Racer game Acclaim Cheltenham The source code of the PS2 game came into hands of a community member by unknown means around 2015.[643]
FIFA 97 1996 1996 sport video game Electronic Arts Around 1996 Electronic Arts put accidentally the source code of FIFA 97 on a demo disc.[644][645]
Forsaken 1998 2007 6DOF shooter Probe Entertainment In 2007, nine years after the first release, the game itself and its source code were considered abandoned and became available to the public.[646] The game's community took up the game and kept updating and porting the game via a GitHub repository under a GPL license.[647][648]
GunZ: The Duel 2005 2011 Third-person shooter MAIET Entertainment In 2011 the source code of GunZ 1.5 became available online.[649]
Lineage II 2003 2003 MMORPG NCSOFT In 2003 a Chinese Hacker acquired the Lineage II source code, and sold it to someone who set up alternative servers. Shutdown by FBI in 2007.[650][651]
Microsoft Entertainment Pack 1996 2004 Casual game Microsoft In the copies of Windows NT 4.0 and Windows 2000 source code which leaked back in 2004, there are 32-bit versions of Cruel, Golf, Pegged, Reversi, Snake (Rattler Race), Taipei and TicTactics.[652]
NBA Jam Extreme 1996 2017 Sports game Sculptured Software In February 2017 the source code was discovered on an archival CD liquidated by Acclaim Entertainment during their bankruptcy sale. It was subsequently sold on eBay for $500.
OGame 2002 2009 Space strategy MMO Gameforge AG The source code of the original, non-redesigned version of the game was most-likely obtained due to vulnerability in either MySQL or its own layout. It differs heavily from the existing version of the game and was shared on GitHub [653] in an attempt to reinstate gameplay to how it was by the end of 2008. That repository also contains multiple supplementary fixes polishing the original 0.84 version.
Re-Volt 1999 200? Racing game Acclaim Studios London Members of the fan-base have acquired the source code of the game around 2004, which was leaked from an anonymous developer who worked on the Xbox Live port.[654][655] The game community works since then on fan patches and source ports to new platforms like Linux, MacOS and OpenPandora.[656][657][658]
Rolling Thunder 1987 2016 side-scrolling action game Tiertex Design Studios The Amiga version became available on a community forum.[659]
Ultimate Mortal Kombat 3 1994 2009 Beat'em up Midway Games The source code and artwork of the PSX version were recovered from floppies in 2009.[660][661]
Mr Nutz 2 1994 2008 Platformer Ocean Software Amiga game, source code prototype associated with Peter Thierolf.[662][663]
Killer7 2005 2016 Action-adventure game Grasshopper Manufacture Sources and assets for the GameCube game were found in October 2016 on an open webserver.[664]
S.T.A.L.K.E.R.: Clear Sky (X-Ray Engine 1.5.10) 2008 2014 FPS GSC Game World In August 2014 S.T.A.L.K.E.R.: Clear Sky's X-Ray Engine 1.5.10 source code became available on GitHub under a non-open-source license.[665] The successor's engine, X-ray 1.6.02, became available too.[666][667]
Starcraft 1998 2017 Real-time strategy Blizzard In 2017 it was announced that a potentially 1998 stolen/lost[668] STARCRAFT Gold Master source code CD of Starcraft resurfaced in the hand of an enthusiast.[669] After long contemplation, he sent it back to Blizzard.[670] There was some doubt about the authenticity of this CD, as there was no proof provided. It is unclear if, as indicated in the earlier discussion, a copy of the source code was forwarded to Jason Scott of the Internet Archive for preservation purposes.
Tony Hawk's Underground 2003 2016 Sports game Neversoft The game's C++ source code was leaked in February 2016 to GitHub.[671]
Turrican III 1994 2008 Run and gun Factor 5 Amiga game, source code prototype associated with Peter Thierolf.[663]
Turok: Dinosaur Hunter 1997 2017 First-person shooter Iguana Entertainment / Acclaim Entertainment In February 2017 the source code of the N64 version was sold on Ebay for $2551.99 on a SGI Silicon Graphics Indy development machine which came from the Acclaim Entertainment liquidation. This source code was later released August 26 2018, then reuploaded, non-encrypted to 4chan the following day.[672][673][674]
Trespasser 1998 200x Action-adventure, FPS DreamWorks Interactive The fan community got the original source code into hand by unknown means[675] and created modifications and unofficial patches with it,[676][677] the latest DirectX 9 port from 2016 and the development ongoing.[678]
Ultima 9 1999 2014 First person Role-playing video game Origin Systems In November 2014 the Ultima Codex Community was able to acquire the Ultima 9 source code from a former developer for offline archival to prevent permanent loss.[679]
Wing commander series 1990 2011 Space simulator Origin Systems The long lost source code of Wing Commander I was given to the fan-community in August 2011 by a former developer for the purpose of long-time preservation.[680] Later most other parts of the series followed.[681][682]
Zork and other Infocom games 1977 2008 Adventure game Infocom In 2008 a back-up with the source code of all Infocom's video games appeared from an anonymous Infocom source and was archived by the Internet Archive's Jason Scott.[683][684][685]

Games with reconstructed source code

Once games, or software in general, become an obsolete product for a company, the tools and source code required to re-create the game are often lost or even actively destroyed and deleted.[686][423][687][688][689][690][691] On the closure of Atari in Sunnyvale, California in 1996, the original source code of several milestones of video game history (like Asteroids or Centipede) were thrown out as trash.[692][693]

When much time and manual work is invested it is however still possible to recover or restore a source code variant which replicates the program's functions accurately from the binary program. Techniques used here are decompiling, disassembling and reverse engineering the binary executable. This approach typically does not result in the exact original source code but a diverging version as a binary program does not contain all information originally carried in the original source code. Comments and function names cannot be restored if the program was compiled without additional debug information. The here given in "bottom up" development methodology re-created source-code of games is able to replicate the behaviour of the original game exactly ("clock-cycle accurate", "pixel-per-pixel accurate"), unlike game engine recreations which are often made in top down methodology resulting in general game engines and not accurately representing the original game.

   Title    Original release Source code reconstructed Genre Original developer Additional information
Albion 1996 2011 Adventure game Blue Byte In 2011 via static recompilation from the original x86 binary executable a port for the ARM architecture of the Pandora handheld was created by fans.[694][695] The community still updates this recompiled version and released also Windows and Linux builds in 2015,[696] source code available on GitHub under MIT.[697]
Another World 1991 2011 Platform game Delphine Software International In 2011, Fabien Sanglard analysed Another World by reverse engineering and reconstructed, based on an earlier approach, a complete C++ source code variant of the internal virtual machine.[698][699]
Bagman 1982 2010 Arcade game Valadon Automation In 2010 the French programmer Jean-François Fabre reconstructed C source code from the game to port it to modern platforms.[700]
Bermuda Syndrome 1995 2007 Adventure game Century Interactive After the end of support for the game, Gregory Montoir reverse engineered in 2007 the game engine and wrote a substitute which allowed the porting of the game to modern platforms,[701][702] like the OpenPandora handheld.[703]
Boulder Dash 1984 2016 Arcade game First Star Software The C64 version was bit accurate reverse engineered by enthusiasts in month long work in 2016.[704][705] The group reverse engineered several more games also from this period, like The Castles of Dr. Creep 3, Miner 2049er, Lode Runner, Manic Miner and Beach Head.[706]
The Castles of Dr. Creep 1984 2010 Platform game Edward R. Hobbs Robert Crossfield worked on a faithful engine for the game since 2010.[707] The remake/reconstructed version got released for PC on Steam by Edward R. Hobbs & Robert Crossfield in September 2016.[708]
Cannon Fodder 1993 2015 top-down shooter Sensible Software In December 2015, Robert Crossfield released version 1.0 of the reverse engineered DOS CD Cannon Fodder version, under the name "OpenFodder" on GitHub under GPL.[709][710]
Chasm: The Rift 1997 2016 First-person shooter Action Forms Around 2016 a reverse engineered version became available on GitHub.[711]
Commander Keen 5 2001 2017 Sidecrolling shooter Id software In 2017 a pixel-accuracy aiming engine re-implementation, based on several disassembly/decompilation efforts, became available by David Gow.[712] C99 source code is hosted on GitHub under GPLv2. Originally only meant for Keen 5, it now supports Keen 4, 5 and 6.[713]
Diablo 1996 2018 Action RPG Blizzard Entertainment In 2018 an reverse engineered version was released, based on previously accidentally released debug information and builds by Diablo developers.[714] Builds and compiles successfully for modern OSes.
Diablo II 2000 2015 Action RPG Blizzard Entertainment In 2015 an unofficial port for the ARM architecture based Pandora handheld became available by static recompilation and reverse engineering of the original x86 version.[715][716]
Digger 1983 1998 Arcade Windmill Software Reverse engineered by Andrew Jenner in 1998, called Digger Remastered, released as GPL and ported for many platforms.[200]
Dune II 1992 2009 Real-time strategy game Westwood Studios In 2009 a group started reverse engineering Dune II under the name OpenDUNE.[717] The resulting code was released under GPLv2 and ported to other platforms like the Pandora.[718]
Dungeon Keeper 1997 2005 realtime dungeon simulator Bullfrog Tomasz Lis works on reverse engineering (ongoing) a version called "KeeperFX", the resulting source code is released as GPLv3.[719]
Dungeon Master 1989 2001 Dungeon crawler FTL Games In 2001 Dungeon Master (and its successor CSB) was released by Paul R. Stevens in a portable reverse engineered version called "CSBwin". CSBwin was reverse engineered from the game's Atari assembler code to a pure C version in months of work.[720][721] In 2014 Christophe Fontanel released another reverse engineering project which tries to recreate all existing versions.[722][723]
E.T. the Extra-Terrestrial 1982 2006 Arcade Atari In 2006 decompiled by Dennis Debro.[724][725][726] Following that, several unofficial fixes for the game were released by a fan site.[727]
Elite 1984 2003 Space trading game Ian Bell, David Braben Christian Pinder created Elite: The New Kind as faithful PC version by reverse-engineering platform-neutral C code from the original BBC Micro version of Elite. This version was withdrawn from the main distribution at David Braben's request in 2003.[728] In September 2014, on Elite's 30th birthday, Ian Bell blessed Elite: The New Kind and re-released it for free on his website.[240][729][730] Source code of the 1.0 version is available on a GitHub repository.[731]
Escape from Colditz 1991 2009 Action-adventure game Mike Halsall, John Law / Digital Magic Software. Around 2009 some developers reconstructed from the Amiga version a C version under GPLv3.[732][733] Ported then to many systems.
Exile 1988 2012 Action-adventure game Peter Irvin Around 2012 the assembly source code of the BBC Micro version was reconstructed and commented.[734] Later author Peter Irvin blessed also the non-commercial redistribution of the Amiga version of the game.[735]
Freeway 1981 19?? Arcade game Activision Decompiled and commented by Rebecca Heineman.[726]
Football Manager 1982 2001 Sports game, Business simulation game Kevin Toms In 2001 Paul Robson developed an accurate remake of the original game by reverse engineering in C.[736] The remake has since been ported to the GP2X[737] and Google Android.
Frontier: Elite 2 1993 2006 Space trading game Frontier Developments Reverse engineered to C by Tom Morton until 2006.[738]
Frontier: First Encounters (Elite III) 1995 2005 Space trading game Frontier Developments Frontier Developments announced in 2000 that FFE would be open-sourced under a GPL-similar license,[739] but this never happened.[740] In response, in October 2005 the game was reverse engineered by John Jordan and builds for modern operation systems were provided.[741] Updated until December 1, 2009 and later continued by other programmers with builds like "FFE_D3D".[742]
Half-Life 1999 2013 FPS Valve Software Around 2013 Valve released with the SDK some source code parts (server).[743] The client and the Goldsrc engine parts were reverse engineered in context of the Xash3d project.[744] Ports to other systems became available, for instance Android or the OpenPandora.[745]
Inner Worlds 1996 2016 Fantasy adventure platformer Sleepless Software Originally shareware, in February 2000 the game was released as freeware in version 1.3.[746][747] Source code reverse engineered around 2016.[748]
Igor: Objective Uikokahonia 1994 2017 Point and click adventure Pendulo Studios Reverse engineered by Gregory Montoir, now hosted on GitHub, currently beta status.[749]
Heart of the Alien 1994 2004 Platformer Interplay Entertainment After Heart of the Alien became unsupported and unavailable, Gil Megidish took up 2004 the effort of extracting a source code variant from the binary game by reverse engineering to make the game available again on modern platforms.[750] The extracted source code was made open-source and is hosted freely available on SourceForge.
Jet Set Willy 1984 2014 Platformer Software Projects This classic ZX Spectrum game was disassembled by Richard Dymond back into Z80 source code, and includes some very comprehensive comments.[751]
J.R.R. Tolkien's The Lord of the Rings, Vol. I 1990 2009 Adventure game Interplay Entertainment As the game is without official support for many years, a community developer reverse engineered the game engine and created around 2009 a substitute. The LPGLv2.1+ licensed open source project allowed the porting to modern platforms,[752] for instance Windows, Linux and the OpenPandora handheld.[753]
KKnD Extreme 1997 2017 Real-time strategy Beam Software Reverse engineered and made available on GitHub by Alexandr Parshin.[754]
Little Big Adventure 1994 2004[755] Action-adventure Adeline Software International Reverse engineered after getting an "OK" by Frederick Raynal and placed on SourceForge (later GitHub) as "Twin-e".[756][757]
Manic Miner 1983 2014 Platformer Bug-Byte This classic ZX Spectrum game was disassembled by Richard Dymond back into Z80 source code, and includes some very comprehensive comments.[758]
Metroid 1986 ? Run and gun/Action-adventure game Nintendo The NES game was disassembled by the collaborative work of several developers over the course of years.[759][760]
Might and Magic 6/7/8 1998 2016 RPG New World Computing Reverse engineered as world-of-might-and-magic on GitHub by Alexandr Parshin and other programmers.[761]
Minecraft 2009 2010 Sandbox game Mojang The Mod Coder Pack (MCP)[762] offers scripts for de-obfuscation/decompilation of the Java-based version of Minecraft.
Nicky Boum 1992 2007 Platform game Microïds Reverse engineered by Gregory Montoir and open sourced in March 2006 with version 0.1.5. The engine reached with v0.2.0 playable status when development and distribution of the source code was stopped.[763] The source code was made in 2017 available on GitHub for some time, before the repository was set to private.[764]
Oo-Topos 1982 2015 Interactive fiction Penguin Software Penguin Software released several of their Comprehend Adventure engine games as freeware, also from the Transylvania series.[765] After end of official support, Ryan Mallon reconstructed around July 2015 a source code variant of the game's engine to port these games.[766] Ryan Mallon works also on reverse engineering The Lost Vikings engine.[767]
Out Run 1986 2012 Arcade racing Sega Since around 2009[768] a game enthusiast worked on decompiling source code of "Out Run". In 2012 a truthful engine, called "Canon Ball", was released on GitHub. To run the game, the original game's assets are required.[769] Ports to many systems followed, like OpenPandora.[770]
Pokémon Red and Pokémon Blue 1996 2014 Role-playing video games Nintendo Reverse engineered assembly of the Game Boy Color game on github.com.[771]
Pokémon Crystal 2001 2014 Role-playing video games Nintendo Reverse engineered assembly of the Game Boy Color game on github.com.[772]
Pong 1972 2012 Arcade game Atari The available schematics ("source code") was reconstructed and adapted for modern and available electronic parts to a new PCB design in 2012.[773][774][775]
RollerCoaster Tycoon 2 2002 2014 Business simulation game Chris Sawyer In April 2014 a project to reverse engineer Roller Coaster Tycoon 2 into platform independent C source code, was started under the name OpenRCT2 by Ted 'IntelOrca' John.[776] Hosted as GPLv3 licensed open-source software on GitHub, it requires the original game's graphics and sound assets.[777] As of November 2015, while the project has not fully reached the goal of substituting 100% of the binary's functionality, the port is playable and for many platforms builds are available.
PowerSlave 1996 2017 FPS Lobotomy Software On May 24, 2015, an unofficial remake based on the PlayStation version was released by Samuel "Kaiser" Villarreal for free.[778][779] In May 2015 publisher Night Dive Studios acquired the game rights,[779] Villarreal and Night Dive Studios working on a digital distribution re-release.[780] On January 2, 2017 Kaiser released the source code of his reverse engineered engine under the GPLv3 license on GitHub.[781][782]
Snipes 1983 2016 early networked Multi player game maze game SuperSet Software In July 2016, a faithful port by reverse engineering the original game became available. Permission was granted by original authors Drew Major and Kyle Powell[783] to make it public. The full C/C++ source code is available at GitHub.[784]
Super Bomberman 1993 2015 Action, Maze Hudson Soft Reverse engineered assembly and build system of Super Bomberman by Lior Halphon on GitHub. Rebuilds several different versions of the game, and can restore some disabled debug features.[785]
Super Mario Bros 1985 2012 Platformer Nintendo Commented disassembly of SMB on GitHub.[786] A statically reverse engineered version, compiling and running with SDL was developed around 2017/2018.[787]
Space Ace 1984 2015 Interactive movie Advanced Microcomputer Systems In July 2015 Rebecca Heineman released a reverse engineered Apple IIGS source code version of Space Ace on GitHub.[788][789]
Star Castle 1980 2012 Arcade Atari Former Atari engineer D. Scott Williamson re-created in 3 years work Star Castle faithfully for the Atari 2600. After a successful crowdfunding campaign on Kickstarter, he released everything for free on his website, including source code.[790][791][792]
Starcraft 1998 2014 Real-time strategy Blizzard Entertainment By static recompilation and reverse engineering of the original x86 binary to an intermediate C "pseudo-assembly" source code,[793] an unofficial version for the Pandora handheld and the ARM architecture became available in 2014.[794][795]
Stardew Valley 2016 2016 Farming simulation Eric "ConcernedApe" Barone / Chucklefish Decompiled for fan patches and mods.[796][797]
Star Wars Jedi Knight: Dark Forces II 1997 2013 FPS LucasArts Since 2013, a recreation of the engine is being developed GitHub.[798]
Strike Commander 1993 2013 Flight simulator Origin Systems In 2013 a SC reverse engineering project by Fabien Sanglard with a reconstructed source code variant became available on GitHub as the original source code was most probably lost in the take over of Origin by EA (Abandonware).[799][800]
Super 3D Noah's Ark 1994 2015 FPS Wisdom Tree In October 2015 a community reconstructed, under usage of already released id software engine code, source code variant became available on Bitbucket.[801][802][803]
Syndicate Wars 1996 2010 Real-time tactics Bullfrog Productions In January 2010 a reverse engineering project of the MS-DOS-based Syndicate Wars was finished by two developers and builds for Windows, Mac and Linux were released.[804] It's complete beside networking and joystick code.[805]
Tennis for two 1958 2008 Arcade William Higinbotham In 2008 Tennis for Two, a video game from 1958 and one of the earliest video games,[806] was recreated using partly modern parts.[807]
The Great Escape 1986 2016 Arcade adventure Denton Designs David Thomas started in 2012 a reverse engineering project to create portable C source code from the ZX Spectrum version's binary, which reached in January 2016 compiling state.[808][809]
The Last Ninja 1987 2009 Action-adventure game System 3 Robert Crossfield reverse engineered a faithful engine from the Amiga version of the game since 2009.[810] First three levels complete.
Tomb Raider: Chronicles 2000 2017 Action-adventure game Core Design Around February 2017 PSX SDK tools and debug symbols leaked to a forum which ignited a reverse engineering project on GitHub.[811][812][813] Status, compiling.
Touhou Project 1996 2014 Shoot 'em up Team Shanghai Alice "The Touhou PC-98 Restoration Project" was started around 2014 on GitHub on base of found source code of libraries.[814] In progress.
Transport Tycoon Deluxe 1994 2004 Business simulation game Chris Sawyer/Microprose In 2003, Ludvig Strigeus started to reverse engineer Transport Tycoon Deluxe and convert the game to C. In 2004, this re-engineered Transport Tycoon Deluxe was released and christened OpenTTD and is still under active development by the community.[815][816]
Ultima 3: Exodus 1983 2002 RPG Richard Garriott Disassembled and ported to GBC in 2001 by Sven Carlberg.[817] Richard Garriott was aware and pleased by this work.
Zorgons Revenge 1983 2014 Shooter John Sinclair Jean-François Fabre created binary translation libraries for Oric BASIC and assembly code to portable C and used it for nine games.[818] Source code re-created and released for: House of Death, L'Aigle d'Or, Le Manoir du Dr Genius, Le Retour du Dr Genius, Rendez-vous de la Terreur, Xenon 1, Strip 21, Zebbie, Zorgons' Revenge.[819] Build available for the OpenPandora.[820]

See also

References

  1. ↑ A Dark Room goes open source Archived 2015-09-07 at the Wayback Machine. on doublespeakgames.com (July 3, 2013)
  2. ↑ Akalabeth: World of Doom - Apple II (1979/80) Archived 2016-03-26 at the Wayback Machine. on hardcoregaming101.net "Origin Systems for a time had the original Apple II source code of Akalabeth for download on their website's FTP server"
  3. ↑ aklabeth.zip Archived 2016-07-21 at the Wayback Machine. on uo.com (archived)
  4. ↑ EULA
  5. ↑ barotrauma on github.com
  6. ↑ Barotrauma Source Code on undertowgames.com
  7. ↑ BombAlley source code on archive.org
  8. ↑ Jason Rohrer (2011-10-17). "DiamondTrust/ci/default/tree". SourceForge. Archived from the original on 2014-06-23. Retrieved 2013-05-22.
  9. ↑ "Alan Turing at 100". Harvard Gazette. Archived from the original on 2016-03-03. Retrieved 2016-02-22.
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  11. ↑ The Genealogy of Eliza Archived 2016-03-04 at the Wayback Machine.
  12. ↑ Big Computer Games: Eliza - Your own psychotherapist on atariarchives.org
  13. ↑ The Genealogy of Eliza Archived 2016-03-04 at the Wayback Machine. by Jeff Shrager
  14. ↑ Kristina Simpson (2015-04-26). "LICENCE". anura-engine - GitHub. Archived from the original on 2016-07-21. Retrieved 2015-10-10.
  15. ↑ Humble Indie Bundle's Source Releases Archived 2016-08-09 at the Wayback Machine. by Iwan Gabovitch "Another game which is commercial (on iDevices) and has FOSS code and closed art [...] is Frogatto." (April 22, 2011)
  16. ↑ Frogatto by Lost Pixel Archived 2016-09-11 at the Wayback Machine. on itunes.apple.com
  17. ↑ "Frogatto & Friends for iPhone, iPod touch, and iPad on the iTunes App Store". Archived from the original on 2012-11-09. Retrieved 2012-03-03.
  18. ↑ "BlackBerry App World: Frogatto". Archived from the original on 17 March 2012. Retrieved 16 March 2012.
  19. ↑ License Archived 2015-05-03 at the Wayback Machine. "CC-BY 3.0 LICENSE [...] assets under copyright" on github.com/frogatto
  20. ↑ episodes Archived 2017-02-13 at the Wayback Machine. on hero.handmade.network
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  22. ↑ Hydra slayer on steam.com
  23. ↑ hydra on github.com
  24. ↑ hyperrogue on github.com
  25. ↑ Smith, Adam (28 September 2017). "HyperRogue, the non-Euclidean roguelike, is a mind-melting masterpiece". Rock, Paper, Shotgun. Retrieved 29 September 2017.
  26. ↑ MarvInc on github.com
  27. ↑ ja2-stracciatella Archived 2017-04-20 at the Wayback Machine. on github.io
  28. ↑ Burnes, Andrew (2004-02-25). "Jagged Alliance 2 Source Code To Be Bundled With Wildfire". ign.com. Archived from the original on 2013-01-08. Retrieved 2012-12-23.
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  31. ↑ OneLife on github.com/jasonrohrer
  32. ↑ Isokawa's Original HuBasic Source Code Archived 2016-07-21 at the Wayback Machine. scanned from Oh!MZ August 1985
  33. ↑ Hardcore Gaming 101, Who created PITMAN? Archived 2011-09-11 at the Wayback Machine. on hardcoregaming101.net (2011)
  34. ↑ The Untold History of Japanese Game Developers DVD review Archived 2014-10-06 at the Wayback Machine. by Tom Massey on Eurogamer "Pitman creator Yukata Isokawa's emphatic emotional response to receiving a long-lost magazine featuring his original source code is particularly memorable." (2014-09-12)
  35. ↑ The (almost) original version of Pitman (Catrap) preserved Archived 2016-07-21 at the Wayback Machine. (July 19, 2012)
  36. ↑ pixeldungeon Archived 2016-06-21 at the Wayback Machine. on pixeldungeon.watabou.ru
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  38. ↑ 7dfps Archived 2017-05-23 at the Wayback Machine. on github.com
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  44. ↑ softporn.zip AppleBASIC source code packed as AppleII disk image, on ifarchive.org
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  46. ↑ Al Lowe. "Softporn". allowe.com. Archived from the original on 2015-08-11. Retrieved 2015-08-14. Before there was a Leisure Suit Larry, Chuck Benton created the only non-graphic game Sierra ever sold, Softporn for the Apple ][. I later used its puzzles as the basis for LSL1: Leisure Suit Larry in the Land of the Lounge Lizards. Still later, Gary Thompson reprogrammed it for the IBM PC. Here's your chance to see whether the changes I made to this classic game were improvements or not! Click here to download "Softporn" and see 1981 for yourself!
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  69. ↑ gog.com team (2015-03-24). "Release: Airline Tycoon Deluxe". gog.com. Archived from the original on 2015-08-09. Retrieved 2015-08-01. Airline Tycoon Deluxe is a golden oldie with native versions for Mac OS X and Linux. As an added bonus, the package here comes with the game's Windows source code for your viewing and tweaking pleasure. You sure don't see that every day.
  70. ↑ AlienBash_src.readme Archived 2016-03-04 at the Wayback Machine. This code is available under the following license, as stated by Mr. Glen Cumming in the above thread: "I am happy for every scrap of code on my disks to be made available to whoever wants it - I only ask that the really embarrassing stuff is erased (lots) and any potentially libelous messages (or swears) in any of the code/scrolling messages are removed."
  71. ↑ AlienBash I & II - Original Coder Contacted - Help Needed in Rescuing 68000 Source!! Archived 2016-03-06 at the Wayback Machine. on eab.abime.net (2014)
  72. ↑ Alien Breed 3D by John Girvin "In March 1997, Team17 released the source code to AB3D’s sequel, “Alien Breed 3D II: The Killing Grounds” (known as TKG), on the cover CD of Amiga Format issue 95. It was megabytes of undocumented, disorganised, messy assembly language. Andy Clitheroe, the lone programmer of both games, must have been some kind of genius, I think. The official release was of the TKG source code. However, when poking around the CD I found the original (and equally messy) AB3D source too." (archived, 2009)
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  74. ↑ a3dsrc src mirror on aminet.net
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  79. ↑ AvP/trunk/License.txt The source code to Aliens Vs Predator is copyright (c) 1999-2000 Rebellion and is provided as is with no warranty for its suitability for use. You may not use this source code in full or in part for commercial purposes. Any use must include a clearly visible credit to Rebellion as the creators and owners, and reiteration of this license.
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  96. ↑ Humphries, Matthew (21 April 2012). "Arx Libertatis: cross-platform port of Arx Fatalis released". geek.com. Retrieved 17 November 2012. What’s interesting about Arx Fatalis is that development of the game started up again last year. Arkane Studios released patch 1.21 and with it open sourced the engine. That led to an new project called Arx Libertatis, which aimed to update the game to be played on multiple modern operating systems including Windows and Linux.
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  98. ↑ Kurinnoy, Michael (2007-02-20). "AstroMenace Press Release" (PDF). Viewizard. Archived from the original (PDF) on 2011-07-17. Retrieved 2010-03-08.
  99. ↑ Memonix game Source on viewizard.com (2007-10-12)
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  109. ↑ Request for assistance in publishing old source code files Archived 2017-02-26 at the Wayback Machine. at Atari Age by Chris Crawford (Aug 24 2013)
  110. ↑ Crawford, Chris (2013). "Source Code". Archived from the original on 2016-12-19. Retrieved 2017-02-24. 30 months ago, at the 2011 Game Developers Conference, somebody asked me to release the source code for my old games. I said I would look into it. [...] I have begun the process of preparing my source code for general distribution.
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  113. ↑ Shrigley, Chris (2015-03-27). "batman-returns-sega-cd-3d-driving-game-source-code found". shrigley.com. Archived from the original on 2015-11-21. Retrieved 2015-11-20.
  114. ↑ source code archive Archived 2015-11-21 at the Wayback Machine. of Chris Shrigley
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  116. ↑ "Latest Developments". ScummVM.org. August 2, 2012. Archived from the original on August 22, 2013. Retrieved July 14, 2013. Support for Beneath a Steel Sky, made possible thanks to Revolution Software supplying us with the original assembly source code!
  117. ↑ Leyda, Jeff. "The Beyond Castle Wolfenstein Project – Beyond Castle Wolfenstein Project Quick FAQ". oldskool.org. Archived from the original on 2014-09-07. Retrieved 2014-08-31. Q) Do you have the rights to distribute this game? A) Hopefully! Silas Warner's wife has granted permission to release the source code and game executables as a small memorial of his work.
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  130. ↑ bobsgame Archived 2017-01-17 at the Wayback Machine. on github.com
  131. ↑ Bob's Game source code released! Archived 2017-02-28 at the Wayback Machine. by Daniel Berkhart on caltrops.com (2016-08-25)
  132. ↑ Breathless Source? (1999)
  133. ↑ sourceforge.net/projects/raceintospace Archived 2013-06-11 at the Wayback Machine.
  134. 1 2 CopyrightInfo.txt
  135. 1 2 3 Larabel, Michael (June 6, 2014). "id Software's Softdisk Open-Sources Some Really Old Games". Phoronix. Archived from the original on June 9, 2014. Retrieved June 6, 2014.
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  137. ↑ CatacombSDL Archived 2016-07-21 at the Wayback Machine. on github.com/Blzut3
  138. ↑ Call-to-Power-II-Source-Code-End-User-License-Agreement Archived 2012-11-09 at the Wayback Machine.
  139. ↑ Bell, John (2009-10-01). "Opening the Source of Art". Technology Innovation Management Review. Archived from the original on 2014-03-30. Retrieved 2012-12-30. [...]that no further patches to the title would be forthcoming. The community was predictably upset. Instead of giving up on the game, users decided that if Activision wasn't going to fix the bugs, they would. They wanted to save the game by getting Activision to open the source so it could be kept alive beyond the point where Activision lost interest. With some help from members of the development team that were active on fan forums, they were eventually able to convince Activision to release Call to Power II's source code in October of 2003.
  140. ↑ "Canabalt "Open Source" Details, Licensing and Extra Information". December 31, 2010. Archived from the original on 2013-05-25. Retrieved 2013-06-06.
  141. ↑ GAME_LICENSE.TXT Archived 2015-10-19 at the Wayback Machine.
  142. ↑ Hodgkins, Kelly (2010-12-31). "Popular indie game Canabalt goes open source". tuaw.com. Archived from the original on 2013-06-30. The developers behind Canabalt confirmed that the game's source code will be made available as part of an open source project. The game will be licensed under the MIT Open Source license, which will let other developers use the engine source code in its entirety for both personal and commercial projects. While the code powering the game is available for the world to use, the game art, sounds, animations and Canabalt game-specific code is still proprietary.
  143. ↑ Captain Blood Source code.2mg 2017-01-29 12:22 800K
  144. ↑ Apple IIgs hack: Captain Blood now runs on ROM 01 and 3 machines. Get it with source code at http://www.brutaldeluxe.fr/hack/infogrames/ … 9:12 AM - 5 Feb 2017 by Antoine Vignau
  145. ↑ carnivores_2
  146. ↑ carnivores-2ice-age-source-code on moddb.com
  147. ↑ Petitte, Omri (20 March 2014). "Cart Life exits Steam, goes open source". PC Gamer. Archived from the original on 22 March 2014. Retrieved 21 March 2014.
  148. ↑ Die geheimen Projekte des Richard Hofmeier Archived 2016-07-21 at the Wayback Machine. on indiegames.ch (May 2015)
  149. ↑ cartlife_src Archived 2016-07-21 at the Wayback Machine. on github.com
  150. ↑ Product_2K_Games_Firaxis_Release_Civ_IV_SDK Archived 2017-01-04 at the Wayback Machine. on gamasutra.com
  151. ↑ civ4 downloads Archived 2008-05-13 at the Wayback Machine. on 2kgames.com
  152. ↑ Kosak, Dave 'Fargo' (27 October 2005). "GameSpy: Civilization IV". GameSpy. pp. 1–3. 662218. Archived from the original on 6 December 2013. Retrieved 24 October 2009.
  153. ↑ Civ4: Better AI Archived 2017-01-04 at the Wayback Machine. on sourceforge.net "Major improvements to AI naval and air unit handling [...] Well over 100 bug fixes"
  154. ↑ civilization-v-dll-source-code-coming-with-fall-patch on forums.civfanatics.com (2012)
  155. ↑ Samuel Wicks (2016-04-26). "Wondrous: The Civilization V Community Patch Project". Rock, Paper, Shotgun. there’s another big new release expected, but it’s not an official expansion. It’s the Community Patch Project (CPP; to be named Vox Populi on release), a community-made mod that overhauls and improves a majority of the game’s systems in an attempt to make Civilization V the best game it possibly can be.
  156. ↑ Patrick Klepek (2017-04-26). "The Modders Who Decided to Overhaul the AI in 'Civilization V'". Vice.com. Community Patch was actually built upon another mod. Since development began in 2014, it's become its own thing, prompting a rebranding: Vox Populi. Besides improving upon the game's AI, Vox Populi tweaks the game's balance, and fixes bugs that were left behind after Firaxis moved on. [...]we have to respect them for giving us the source code, and that must have taken some courage
  157. ↑ Source Code "The complete source code of the following Clonk versions is available: Clonk Rage (current version) (engine, tools, and editor, VC6/VC7/VC9/MinGW/gcc/xcode) Clonk Endeavour 4.95.5 (engine only, VC6 or MinGW) Clonk Planet 4.65 (engine only, VC6) Clonk 3 Radikal (MS-DOS, Borland Turbo C++) Clonk 2 Debakel (MS-DOS, Borland Turbo C++) Clonk 1 (MS-DOS, Borland Turbo C++ [...] Clonk Source Code License (ISC License) Copyright (c) 2001-2014, RedWolf Design GmbH, http://www.clonk.de"
  158. ↑ Developer "Clonk Game Content License Clonk game content is available under the following license. This applies to graphics, audio data, scripting, and text found in the game release packages (usually packed inside c4f, c4g, and c4d group files). Creative Commons Attribution-NonCommercial (CC BY-NC)"
  159. ↑ (in Polish) Announcement on Polish fan community page Archived 2012-08-07 at the Wayback Machine.
  160. 1 2 Jerz, Dennis (2007). "Somewhere Nearby is Colossal Cave: Examining Will Crowther's Original "Adventure" in Code and in Kentucky". Digital Humanities Quarterly. Seton Hill University. Archived from the original on 2016-06-16.
  161. ↑ David Kinder's guide to Adventure downloads Archived 2014-08-12 at the Wayback Machine. at the Interactive Fiction Archive
  162. ↑ Colossal Cave Adventure Source Code Archived 2015-06-06 at the Wayback Machine. on jerz.setonhill.edu (2007)
  163. ↑ adv350-pdp10.tar.gz Archived 2016-06-23 at the Wayback Machine. on ifarchive.org (2000)
  164. ↑ ‘Colossal Cave Adventure’ is due for an update. Archived 2017-05-29 at the Wayback Machine. by Jordan Pearson on vice.com (May 29, 2017)
  165. ↑ open-adventure Archived 2017-05-30 at the Wayback Machine. on GitLab
  166. ↑ The Adventure begins again Archived 2017-05-31 at the Wayback Machine. by Eric Raymond (2017-05-22)
  167. ↑ Let's get Keen Dreams re-released legally ! Archived 2015-09-05 at the Wayback Machine. on indiegogo.com
  168. ↑ commander-keen-keen-dreams-source-code-released Archived 2015-07-22 at the Wayback Machine. on slashdot.org
  169. ↑ Keen source code Archived 2014-09-18 at the Wayback Machine. on GitHub
  170. ↑ continuum on macintoshgarden
  171. ↑ continuum_downloads on ski-epic.com
  172. ↑ GOG.com (2013-12-09). "Classic Gem Promo: Conquest: Frontier Wars". CD Projekt. Archived from the original on 2014-06-12.
  173. ↑ Conquest: Frontier Wars on GOG Archived 2014-09-03 at the Wayback Machine. on robertsspaceindustries.com
  174. 1 2 Larabel, Michael (2012-11-02). "CoreCode's CoreBreach Game Goes Open-Source". Phoronix. Archived from the original on 2013-05-12. Retrieved 2013-06-22.
  175. 1 2 Corncob 3D and the Corncob Other Worlds Campaign on tidegear.net "Kevin Stokes has given his permission to do whatever we like with this!" (2016-01-03)
  176. ↑ "Crytek GmbH: Crytek announces its Game Engine CryENGINE". Wayback Machine. 2008-11-15. Archived from the original on 2008-11-15. Retrieved 2016-10-30.
  177. ↑ Crytek's Video Game Engine Is Now Free Archived 2016-05-10 at the Wayback Machine. by Jason Schreier on Kotaku (15-03-2016)
  178. ↑ CryEngine V releases today on a pay-what-you-want basis Archived 2016-05-18 at the Wayback Machine. by Shaun Prescott on PC Gamer (March 16, 2016)
  179. ↑ Crystal Mines (Source Code) (NES Game) Archived 2016-04-09 at the Wayback Machine. on pdroms.de (Aug 26, 2011)
  180. ↑ Post subject: Crystal Mines Source Code Released Archived 2016-04-09 at the Wayback Machine. on nesdev.com (August 2011)
  181. ↑ Crystal%20Mines%20(NES)%2011151989%20Version.zip in "Crystal Mines License.txt" "Ken's license: - The name "Crystal Mines", the graphics, sound, music, and the levels are NOT open source. People other than me worked on them, and for that version of the game actually got royalties and still have ownership. It's OK to possess them for personal use, but they can't be reused in a new game or distributed for profit. - As the sole author of the code, I (Ken Beckett) will allow the source code for the NES version to be used in other works, provided that: A) Credit is given to 'Ken Beckett' in both the portions of re-used source code AND in the credits of the new game, and B) That the code is modified sufficiently such that the new game is not easily recognizable as being Crystal Mines with new graphics/sound/music. -Ken"
  182. ↑ cylindrix on hardgeus.com (archived)
  183. ↑ Cylindrix Archived 2016-07-21 at the Wayback Machine. on github.com
  184. ↑ the citadel source code Archived 2016-07-21 at the Wayback Machine. (October 2007)
  185. ↑ Cytadela - need help in porting to AmigaOS Archived 2016-07-21 at the Wayback Machine. on amigaworld.net (31-Jan-2007)
  186. ↑ Cytadela project - a conversion of an Amiga first person shooter Archived 2016-06-23 at the Wayback Machine. on cytadela.sourceforge.net
  187. ↑ LeBreton, Jean Paul; Romero, John (2015-01-20). "Devs Play" S01E05 - Doom (Part 8 - Map 6 Central Processing) 60fps [8/10]. YouTube. Double Fine Productions. Event occurs at 5:56. Archived from the original on 2016-03-17. Retrieved 2015-12-12.
  188. ↑ daikatana 1.3 Archived 2016-07-21 at the Wayback Machine. on bitbucket.org
  189. ↑ Palestar. "Medusa Engine License" Archived 2009-07-01 at the Wayback Machine., retrieved January 22, 2010.
  190. ↑ Drafell. "Medusa Engine Source Code Released" Archived 2011-01-25 at the Wayback Machine., DarkSpace Development Blog, June 21, 2009. (Accessed Jan 22 2010)
  191. ↑ death-ray-manta-steam Archived 2017-04-13 at the Wayback Machine. on Rock, Paper, Shotgun
  192. ↑ (GET) DEATH RAY MANTA - Game Maker Studio source Archived 2017-04-13 at the Wayback Machine. on blackworldforum.com
  193. ↑ D2X-XL Archived 2013-01-27 at the Wayback Machine. SourceForge repository
  194. ↑ "Archived copy". Archived from the original on 2015-10-25. Retrieved 2014-09-09.
  195. ↑ Dunkin, Alan (1998-01-26). "Descent Source Code Released". gamespot.com. Retrieved 2013-01-13. Parallax Software, the software developer that created the popular three-dimensional action games Descent and Descent II, has released Descent's source code (version 1.5) to the public domain for noncommercial purposes.
  196. ↑ "Descent 3 – Past Headlines – 1999". Outrage Entertainment. Archived from the original on 2007-02-03. Retrieved 2007-02-07.
  197. ↑ OldeSkuul on facebook.com "we are seriously considering source code releases" (2014)
  198. ↑ digsrc_orig.zip Archived 2016-04-25 at the Wayback Machine.
  199. ↑ whatsnew.html Archived 2016-01-19 at the Wayback Machine. on Digger.org
  200. 1 2 download Archived 2011-10-17 at the Wayback Machine. on digger.org
  201. ↑ Dink-Smallwood-Source-License Archived 2015-01-06 at the Wayback Machine.
  202. ↑ Dink-Smallwood-Source-License Archived 2015-01-06 at the Wayback Machine. Please keep in mind while I'm sharing the source, I am not sharing the media, if you would like to use or distribute the Dink Smallwood artwork, this requires express permission.
  203. ↑ "Archived copy". Archived from the original on 2015-01-06. Retrieved 2015-01-06.
  204. ↑ Find free sounds for FreeDink Archived 2016-07-21 at the Wayback Machine. on gnu.org
  205. ↑ Dink Smallwood HD 1.89 released, made free on all platforms on codedojo.com
  206. ↑ DinkSmallwoodHD on github.com
  207. ↑ Freeware releases "The rights situation has been resolved, and Terry Pratchett and his agent Colin Smythe have approved the source release and future freeware re-issuing of the game. We are currently awaiting receipt of the engine source code." on adventure-treff.de (2005, in German)
  208. ↑ Discworld Source Code Retrieved – ScummVM Developers Thrilled and Already Coding Archived 2016-02-10 at the Wayback Machine. by James Woodcock (May 2008)
  209. ↑ discworld-revisited Archived 2010-11-15 at the Wayback Machine. 2008-07
  210. ↑ Digging for treasure in Aladdin's source code by Rich Whitehouse by The Video game history foundation (October 7, 2017)
  211. ↑ source-code-of-ataris-game-dog-daze-available-on-internet-archive on vintageisthenewold.com (October 2014)
  212. ↑ "TTimo/doom.gpl3". GitHub. 2011-11-22. Archived from the original on 2013-07-21. Retrieved 2011-11-23.
  213. ↑ Dragonfire source Archived 2013-03-16 at the Wayback Machine. on atariage.com
  214. ↑ Dragonfire Source Code Archived 2016-03-07 at the Wayback Machine. at atariage.com "Really, it was Bob that wanted his source in the public domain." (2003)
  215. ↑ [stella] Source code for Dragonfire from Bob Smith Archived 2016-07-21 at the Wayback Machine. on biglist.com
  216. ↑ minidig Archived 2016-11-12 at the Wayback Machine. on qotile.net
  217. 1 2 Source Code Archived 2015-03-27 at the Wayback Machine. on forum.caravelgames.com
  218. ↑ History of DROD Archived 2015-05-18 at the Wayback Machine.
  219. ↑ deadly-rooms-of-death Archived 2016-03-04 at the Wayback Machine. (2008)
  220. ↑ SourceCode Archived 2015-03-27 at the Wayback Machine. on forum.caravelgames.com "Yes, you can have all of the source code to the engine for our commercial products, DROD: King Dugan's Dungeon, DROD: Journey to Rooted Hold, DROD: The City Beneath, DROD: Gunthro and the Epic Blunder, DROD: The Second Sky, and DROD RPG: Tendry's Tale. You just can't have all the media, i.e. the levels, in-game writing, graphics, music, sound effects, and voice samples."
  221. ↑ buildlic.txt Archived 2016-10-12 at the Wayback Machine.
  222. ↑ buildsrc Archived 2016-10-19 at the Wayback Machine. "04/01/2003: Duke Nukem 3D source code released by 3D Realms."
  223. ↑ eduke32.com Archived 2012-09-22 at the Wayback Machine.
  224. ↑ Trendy Entertainment Offers Complete Dungeon Defenders Dev Kit And Source Code As Free DLC Archived 2017-03-26 at the Wayback Machine. on indiegamereviewer.com (November 12, 2011)
  225. ↑ Grant of license to reproduce Dungeons of Daggorath by Douglas J. Morgan "I hereby grant a non-exclusive permanent world-wide license to any and all Color Computer site administrators, emulator developers, programmers or any other person or persons who wish to develop, produce, duplicate, emulate, or distribute the game on the sole condition that they exercise every effort to preserve the game insofar as possible in its original and unaltered form. [...] Anyone willing to pay for the copying of the listing (at Kinko's) and shipment to them, who intends to use it to enhance or improve the emulator versions of the game is welcome to it."
  226. ↑ Matt Barton (13 October 2006). "A Review of DynaMicro's The Dungeons of Daggorath (1982)". Armchair Arcade. Archived from the original on 11 September 2010. Programmers and coders may also be interested in the source code should email Louis Jordan. Before doing so, check out the License Grant offered by Doug Morgan, former president of Dyna Micro. Apparently he's willing to give the code to anyone willing to cover the costs of shipping and copying (at Kinko's) the listing.
  227. ↑ Project Page for Dungeons of Daggorath PC-Port by Richard Hunerlach (August 28, 2002, archived)
  228. ↑ DoD for Linux 0.51 Archived 2016-04-23 at the Wayback Machine. Linux version with source code (2012)
  229. ↑ http://riscos.blog.com/2012/06/02/games-corner-dungeons-of-daggorath-port-released/%5Bpermanent+dead+link%5D
  230. ↑ psp-homebrew-dungeons-of-daggorath Archived 2016-04-24 at the Wayback Machine.
  231. ↑ Eat The Whistle goes GPL! on hurricane-studios.ath.cx (archived)
  232. ↑ Escape Towards The Unknown GPL Archived 2015-09-10 at the Wayback Machine. on sourceforge.net
  233. ↑ Eat the Whistle Archived 2013-09-02 at the Wayback Machine. on ggsoft.org
  234. ↑ Owen, Dave (2014-04-16). "Eldritch developer releases source code for free". VG247. Archived from the original on 2015-01-19. Retrieved 2015-01-18.
  235. ↑ Eldritch-Source-2014-04-14.zip Archived 2015-07-16 at the Wayback Machine. on eldritchgame.com
  236. ↑ Ian Bell's Elite pages - November 1999 : Elite 15th Anniversary - Released the program sources Archived 2016-02-21 at the Wayback Machine.
  237. ↑ Bell, Ian (1999-11-01). "Elite Archives ----The Files----". iancgbell.clara.net. Archived from the original on 2000-11-18. Retrieved 2015-11-06.
  238. ↑ David Braben's Legal Threats to the Elite Home Page Archived 2015-09-24 at the Wayback Machine. on Ian Bell's webpage (updated 19/09/14)
  239. ↑ Braben, David. "I am David Braben, co-creator of Elite, creator of Frontier, Frontier II and the upcoming Elite: Dangerous". Reddit AMA. Archived from the original on 6 August 2014. Retrieved 30 December 2012.
  240. 1 2 "Bell and Braben See Eye-to-eye as Original Elite Sees Dual Re-release". cabume.co.uk. 25 September 2014. Archived from the original on 2015-04-13.
  241. ↑ Empire Interactive (Europe) Limited Licence Agreement for Razorworks' "Enemy Engaged RAH-66 Comanche Versus KA-52 Hokum"
  242. ↑ EECH DevZone (archived)
  243. ↑ "The End of an Era!". Windward. 2005-10-01. Archived from the original on 2005-11-24. Retrieved 2013-10-26. October 1, 2005: We just sold the last copy of Enemy Nations. [...] If you have a copy and want to give a copy to a friend - you have our permission to burn a CD with a copy of Enemy Nations - with one major caveat. You must give them the game. You cannot sell it to them. You cannot include it as part of anything you sell. It cannot be included with any product or magazine as a free extra. The person making the copy must even buy the blank CD. It must be a true free gift given totally separate of anything else.
  244. ↑ source code mirror Archived 2014-03-29 at the Wayback Machine. at atomicgamer.com
  245. ↑ get-your-very-own-free-and-legal-copy Archived 2013-10-29 at the Wayback Machine. (January 2006)
  246. 1 2 "License for Original Code". launchpad.net/enations. Archived from the original on 2017-02-13. This is released under a limited license: 1) No rights are given to the game Enemy Nations, the trademark Enemy Nations, or the concept. 2) Windward intends to someday create an Enemy Nations II and reserves all rights for all future versions of the game. 3) You may not sell anything derived from this code, art, or anything else included. 4) This is released solely for people to learn from the code and to make fixes in the existing code that they will make available for free. If you don't like these restrictions, don't use this code/data.
  247. ↑ Bertolone, Giorgio (2011-03-12). "Interview with Kevin Klemmick – Lead Software Engineer for Falcon 4.0". Cleared-To-Engage. Archived from the original on 2011-03-18. Retrieved 2014-08-31. [C2E] In 2000 the source code of Falcon 4.0 leaked out and after that groups of volunteers were able to make fixes and enhancements that assured the longevity of this sim. Do you see the source code leak as a good or bad event? [Klemmick] "Absolutely a good event. In fact I wish I’d known who did it so I could thank them. I honestly think this should be standard procedure for companies that decide not to continue to support a code base."
  248. ↑ "FreeFalcon". GitHub. 2013-01-24. Archived from the original on 2015-10-25. Retrieved 2013-09-11. Legal - FreeFalcon doesn't have the cleanest history regarding its terms of use, but that all ends here. The code is now licensed under the rather liberal BSD 2-clause license; for the first time in its history, FreeFalcon is truly free. See the LICENSE.md file for the full text of the license.
  249. ↑ You can get it here. Archived 2016-04-01 at the Wayback Machine. on thatgamecompany.com by Jenova (Sep 21, 2009)
  250. ↑ flOw.source.zip Archived 2016-04-02 at the Wayback Machine. on jenovachen.com
  251. ↑ IgorLabs classic games page Archived 2015-06-30 at the Wayback Machine.
  252. ↑ FortApocalypse Archived 2016-07-21 at the Wayback Machine. on GitHub.com
  253. ↑ Free Fall Archived 2015-05-21 at the Wayback Machine. on Ian Bell's website "I wrote Free Fall in 1982/3 for the BBC Micro. It was published by Acornsoft in 1983. I like to describe Free Fall as the first ever beat-em-up so as to claim, with tongue somewhat in cheek, to have invented two gaming genres."
  254. ↑ Sulic, Ivan (2002-04-25). "Freespace Source Code". IGN. Archived from the original on 2012-12-10. Retrieved 2013-01-11.
  255. ↑ Brány Skeldalu (aka The Gates of Skeldal) is ready for testing Archived 2015-11-22 at the Wayback Machine. on trisquel.info
  256. ↑ skeldal Archived 2016-07-21 at the Wayback Machine. on sourceforge.net
  257. ↑ "Brány Skeldalu Download, English Patch (Beta) :: DJ OldGames". oldgames.sk. Archived from the original on 1 February 2014. Retrieved 18 January 2014.
  258. ↑ von Eitzen, Chris (2010-06-10). "Indie game Gish source code released". h-online.com. Archived from the original on 13 November 2012. Retrieved 2013-01-13.
  259. ↑ "Gish goes open-source". Wolfire Games blog. 2010-05-30. Archived from the original on 2013-01-11.
  260. ↑ Calhoun, John (2016-01-29). "Sources for the Macintosh game, Glider PRO, written by John Calhoun and published by Casady & Green Inc". GitHub. Archived from the original on 2016-03-21.
  261. ↑ Calhoun, John (2016-01-31). "Added legal section to read me. · softdorothy/glider_pro@49a35bb · GitHub". GitHub. Archived from the original on 2016-07-21. Retrieved 2016-03-16.
  262. ↑ glad (archived)
  263. ↑ openglad Archived 2016-03-19 at the Wayback Machine. on sourceforge.net
  264. ↑ tinyspeck (2013-11-18). "Glitch is Dead, Long Live Glitch! - Art & Code from the Game Released into Public Domain". glitchthegame.com. Archived from the original on 2013-12-13. Retrieved 2013-12-11. The entire library of art assets from the game, has been made freely available, dedicated to the public domain. Code from the game client is included to help developers work with the assets. All of it can be downloaded and used by anyone, for any purpose.
  265. ↑ Blackwell, Laura (2013-11-18). "Afterlife of an MMO: Glitch's offbeat art enters public domain". pcworld.com. Archived from the original on 2013-12-09. Retrieved 2013-12-11.
  266. ↑ GloomAmiga on GitHub - Source code of Gloom released in May 2017
  267. ↑ LICENSE "the license does not cover any other asset within the repository, which is only present for historical and archiving purposes."
  268. ↑ Get a window into classic Mac dev with Glider source code Archived 2016-07-21 at the Wayback Machine. by Christian Nutt on gamasutra.com (February 12, 2016)
  269. ↑ Calhoun, John (2016-01-29). "The shareware game from the Macintosh written by John Calhoun in the 90's". GitHub. Archived from the original on 2016-07-21.
  270. ↑ glypha-a-joust-like-game-now-on-iphone-for-free Archived 2016-07-21 at the Wayback Machine. on toucharcade.com (2009-07-07)
  271. ↑ Glypha - Then and Now on boredzo.org/glypha
  272. ↑ glypha Archived 2016-07-21 at the Wayback Machine. on ksuther.com
  273. ↑ glypha on github.com/kainjow
  274. ↑ Sebayang, Andreas (2009-03-23). "Gothic 3 Community Patch soll fast alle Fehler beheben – Mehr als 700 Veränderungen im letzten Community Patch" (in German). Golem.de. Archived from the original on 2013-01-22. Retrieved 2013-01-06. Das Team hatte Zugriff auf den Quellcode von Gothic 3. Zusätzlich wurde auch inhaltlich an dem Spiel gearbeitet, da laut Patch Team ein Beheben aller Fehler nicht allein durch das Verändern des Quellcodes möglich war.
  275. ↑ Grand Monster Slam (Source Code) by Rolf Lakaemper, Hartwig Niedergassel on the Internet Archive (March 8, 2017)
  276. ↑ Jens Andersson & Jan Kronqvist (2008-09-21). "The Gravity-Force 2 Homepage". lysator.liu.se. Archived from the original on 2013-10-15. Retrieved 2013-10-13. Jan made an archaeological expedition and recovered the GF2 source code from a dusty old floppy disc! We do not pretend it is a wonder in coding style (in fact, it is a complete disaster!), but for primarily nostalgic interest we publish it here.
  277. ↑ gf2 Archived 2013-10-15 at the Wayback Machine. on lysator.liu.se "The screenshots, the GF2 source code, and the actual Amiga game (v1.10, v1.20) are released for use under the CreativeCommons CC-BY-SA license." (April 26, 2017)
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  279. ↑ vsgarage_deutsch
  280. ↑ software (2002)
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  283. ↑ H-Craft Championship Purchase "In order to purchase H-Craft Championship please visit our reseller www.Manifestogames.com" (2007)
  284. ↑ H-Craft Championship Archived 2009-10-03 at the Wayback Machine. CDnavigator.ru
  285. ↑ H-Craft Championship Archived 2015-08-30 at the Wayback Machine. Freeware release announcement in Reddit
  286. ↑ H-Craft Championship Archived 2014-08-25 at the Wayback Machine. Irrgheist News, February 25, 2015
  287. ↑ H-Craft Championship - H-Craft Source Code Archived 2015-03-02 at the Wayback Machine. on irrgheist.com
  288. ↑ "Bringing Habitat Back to Life". pastemagazine.com. Archived from the original on 2016-03-02. Retrieved 2016-02-22.
  289. ↑ "The Habitat Hackathon". The Museum of Art and Digital Entertainment. Archived from the original on 21 July 2016. Retrieved 6 June 2016.
  290. ↑ Francis, Bryant (2016-07-06). "Source code for Lucasfilm Games' '80s MMO Habitat released". Gamasutra. Archived from the original on 2016-07-08. Retrieved 2016-07-06.
  291. ↑ Lucasfilm Games' MMO 'Habitat' source code released Archived 2016-07-21 at the Wayback Machine. by Brittany Vincent on Engadget.com (2016-07-07)
  292. ↑ Double Fine Releases Source Code for Hack ‘n’ Slash Archived 2016-04-01 at the Wayback Machine. by Garrett Glass (on September 11, 2014)
  293. ↑ Hack ‘n’ Slash Leaves Early Access, Brings Source Code Archived 2016-04-12 at the Wayback Machine. on Rock, Paper, Shotgun by Ben Barrett (September 10th, 2014)
  294. ↑ Hacker Evolution Source code Archived 2016-01-26 at the Wayback Machine.
  295. ↑ license.txt Archived 2016-10-05 at the Wayback Machine. on hg.icculus.org/icculus/hge-unix
  296. ↑ McLaughlin, Ryan (3 August 2011). "Humble Indie Bundle Sells Lots, Windows Users Still Cheap". Hot Hardware. Archived from the original on 3 October 2011. Retrieved 3 August 2011.
  297. ↑ HGE-comes-to-Mac-and-Linux-guest-post-from-Ryan-Gordon Archived 2016-10-08 at the Wayback Machine. on wolfire.com (August 2011)
  298. ↑ Ryan Gordon Ports HGE To Linux, Then Releases Code Archived 2016-06-04 at the Wayback Machine. on Phoronix by Michael Larabel (August 07, 2011)
  299. ↑ hge-unix Archived 2015-10-30 at the Wayback Machine. on icculus.org "August 7th, 2011: Source code released to the world!"
  300. ↑ hge - DX8.1 and 9.0 on github.com
  301. ↑ about on Mobrulesgames.com "content CC BY-NC-SA, code BSD" (archived 2013)
  302. ↑ haunts Archived 2017-02-09 at the Wayback Machine. on kickstarter.com
  303. ↑ Troubled-Haunts-Kickstarter-Goes-Open-Source Archived 2017-03-05 at the Wayback Machine. on the Escapist
  304. ↑ haunts on github.com/MobRulesGames
  305. ↑ haunts on github.com/losinggeneration
  306. ↑ I uh, found the source code for Home Alone 2 for the NES on an old hard drive, if...anyone wants that? on twitter.com
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  316. ↑ BugsMenot (2013-04-01). "Congratulations on the purchase of Homeworld IP! Re-licensing of code requested". gearboxsoftware.com. Archived from the original on 2015-02-17. Retrieved 2014-08-11. [...]it was deemed pretty much impossible to continue to do anything with the released source code that was made available.[...]We just ask that the already released source code be made available under a GPL V2.0 or higher license and hosted on GitHub.
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  343. 1 2 Kiloblaster_and_Xargon_Freeware_License Archived 2013-09-20 at the Wayback Machine.
  344. ↑ Kiloblaster Archived 2012-11-02 at the Wayback Machine. Allen Pilgrim declared Kiloblaster freeware and released the source code.
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  398. ↑ Attention game designers: Public Domain Jam! on creativecommons.org by Matt Lee (May 16th, 2014)
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  498. 1 2 Plunkett, Luke (2013-04-03). "Lucasarts' Closure Convinces Developers To Release Awesome Star Wars Source Code". Kotaku. Archived from the original on 2013-04-07. Retrieved 2013-04-04. In the wake of Lucasarts' closure today, Raven - the developers of the thoroughly excellent Jedi Outcast - have decided to release the source code for the game. Oh, and the code for its sequel, Jedi Academy, as well.
  499. ↑ Rubin, Brian (2012-01-16). "Starshatter: The Gathering Storm Goes Open Source!". spacegamejunkie.com. Archived from the original on 2012-06-15. Retrieved 2013-01-08. Apparently the excellent and unique military space sim, Starshatter: The Gathering Storm, has gone open source thanks to its original developer releasing the source code. [...]: "14 DEC, 2011 – STARSHATTER:THE GATHERING STORM – Open Source Version 5.0.5. This download Includes the cumulative Starshatter-TGS game up to version 5.0.5 (No CD Required). It is available for download from our “Lagacy Official File” section."
  500. ↑ doctorfrog (2012-02-06). "Because Stars Matter: Starshatter (Sci-Fi Flight Sim) is Free!". drfrog.wordpress.com. Archived from the original on 2012-01-27. Retrieved 2012-01-08. Starshatter: The Gathering Storm is a moderately complex, moderately realistic, spaceborne military flight sim that takes place in a series of dynamic campaigns.
  501. ↑ source Archived 2016-07-21 at the Wayback Machine. on digital-eel.com
  502. ↑ sais Archived 2012-12-26 at the Wayback Machine. on infinitespacegames.com "After being sold for several years by Cheapass Games, Strange Adventures in Infinite Space was released as free software and its source code was made available under the GNU General Public License. Go to the Strange Adventures in Infinite Space website to download the game, source code and various other goodies"
  503. ↑ strange-adventures-in-infinite-space-free Archived 2016-06-04 at the Wayback Machine. on Rock, Paper, Shotgun (2009-10-07)
  504. ↑ Villarreal, Samuel (December 12, 2014). "Strife Veteran Edition GPL Source Release". GitHub. Archived from the original on July 21, 2016. Retrieved July 1, 2016.
  505. 1 2 IamA Founder of Night Dive Studios, Stephen Kick - We track down and restore classic video games! AMA! Archived 2016-07-21 at the Wayback Machine. by Stephen Kick on reddit.com "Lost source code is one of the things that genuinely depress me and we're currently evaluating the idea of releasing the code we've discovered and restored to anyone who wants to store it or modify it.[...] We have released the source to Strife: Veteran Edition and we are planning on releasing more code in the future." (22 June 2016)
  506. 1 2 System Shock Remake Feedback Request - Night Dive Studios on systemshock.org "We've also tracked down the source code to the original game and will be releasing it to the community once it's ready." (10 February 2016)
  507. ↑ Duane Blehm's Source Code on macintoshgarden.org "Source Code for Duane Blehm's games (Stunt Copter, ZeroGravity, Cairo Shootout), released into the public domain by his parents after his passing."
  508. ↑ stellar-conquest-3-hostile-takeover Archived 2017-03-13 at the Wayback Machine. on MobyGames
  509. ↑ NecroBones DOS Shareware/Freeware Games & Demos Archived 2016-10-21 at the Wayback Machine. on necrobones.com/
  510. ↑ stellar_frontier_source_eula.txt STARDOCK SHARED SOURCE STELLAR FRONTIER LICENSE (mirror Archived 2015-11-23 at the Wayback Machine.)
  511. ↑ "Stellar Frontier Source Code – Released". stellarfrontier.ss-network.net. 2008-11-18. Archived from the original on December 31, 2009. Retrieved 2013-10-13. As of Tuesday, November 18, 2008, the Stellar Frontier source code has officially been released by Stardock Corporation. End-User License Agreement was updated June 19th 2010.
  512. ↑ Stellar Frontier Development Log Archived 2015-08-01 at Archive.is on nexus.stellarfrontier.net/
  513. ↑ SLF_SOURCE Archived 2016-07-21 at the Wayback Machine. on github.com
  514. ↑ Super Lemonade Factory releases source code Archived 2016-07-21 at the Wayback Machine. by Initials Video games (July 27, 2012)
  515. ↑ shockmac on github.com/NightDiveStudios
  516. ↑ system_shock_source_code_released_under_gpl
  517. ↑ Logan Booker (2018-06-16). "'Shockolate' Is A Cross-Platform System Shock Built On The Original, Open-Sourced Code". Kotaku.
  518. ↑ Brian Fitzgerald grants release of source code to TAXMAN, Pac-Man clone Archived 2016-09-17 at the Wayback Machine. (August 7, 2015)
  519. ↑ source-code-to-be-taxman-released (August 7, 2015)
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  523. ↑ 47-TEK gibt "Team 47: GoMan" Source Code frei Archived 2016-07-21 at the Wayback Machine. by Christian Klass on golem.de (May 6, 1998)
  524. 1 2 Looking for source code for Team 47 GoMAN Archived 2016-07-21 at the Wayback Machine. on vogons.org (2012)
  525. ↑ "I have access to Terminal Velocity, Fury3, and Hellbender's official source codes."
  526. ↑ Velocity/Fury3/Hellbender modern port WIP Archived 2016-07-21 at the Wayback Machine. on vogons.org (July 2015)
  527. ↑ Der Clou! Quellcode veröffentlicht Archived 2016-01-16 at the Wayback Machine. on dlh.net (in German, 13 July 2000)
  528. ↑ Spieleklassiker: Der Clou (1994) Archived 2016-01-16 at the Wayback Machine. by Patrick Jedamzik (in German, 26 December 2006)
  529. ↑ cosp.sourceforge.net/ Archived 2008-04-09 at the Wayback Machine.
  530. ↑ Dev rescues '80s text adventure source code by baking tapes in an oven on Gamasutra.com by Alex Wawro (June 28, 2017)
  531. ↑ Magnetic Scrolls Original Games Source Code Recovered! on strandgames.com (June 19, 2017)
  532. ↑ 1980-07-recreational-computing.pdf Archived 2016-11-08 at the Wayback Machine.
  533. ↑ Game 90: The Wizard's Castle (1980) Archived 2016-04-25 at the Wayback Machine. on crpgaddict.blogspot.de (February 25, 2013)
  534. ↑ The Wizard's Castle windows port Archived 2016-05-24 at the Wayback Machine. by derelict (2004)
  535. ↑ Pit Puzzle "free distribution" (archived)
  536. ↑ The-Puzzle-Pits Archived 2016-07-21 at the Wayback Machine. on github.com
  537. 1 2 3 "弊社製品のムービー再生にxvid.orgのムービー展開ライブラリを使用していた件について。" [Announcement Concerning Our Company's Use of Xvid.org's Video Codec Library for Video Playback in Products] (in Japanese). Aquaplus. 2005-12-22. Archived from the original on 2006-11-26. Retrieved 2010-12-18.
  538. 1 2 "Leaf Forced to Release Game Source Code". Anime News Network. March 1, 2006. Archived from the original on November 4, 2008. Retrieved 2008-12-11.
  539. ↑ aquaplus-sources Archived 2016-07-21 at the Wayback Machine. on github.com
  540. ↑ xlvns on github.com
  541. 1 2 MKXP: Open-Source, Linux Engine To RPG Maker XP Archived 2017-04-06 at the Wayback Machine. by Michael Larabel on Phoronix (8 January 2014)
  542. ↑ mkxp-ToTheMoon Archived 2015-10-31 at the Wayback Machine. on github.com
  543. ↑ ptitSeb's Beta Lair Archived 2017-04-06 at the Wayback Machine. by ptitseb on pyra-handheld.com
  544. ↑ mkxp-abs
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  546. ↑ tornado-dos-flightsim Archived 2017-06-26 at the Wayback Machine. on github.com/tornadorebooted
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  548. ↑ Tread Marks 1.7.0 now free and open-source! Archived 2017-02-11 at the Wayback Machine. by Rick on longbowgames.com (January 20, 2017)
  549. ↑ TreadMarks Archived 2017-05-23 at the Wayback Machine. on github.com
  550. ↑ Treadmarks on github.com/sago007
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  552. ↑ Treasures of a Slaver's Kingdom Archived 2016-01-28 at the Wayback Machine.
  553. ↑ tag:C source available Archived 2016-07-21 at the Wayback Machine. on ifdb.tads.org
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  556. ↑ GarageGames to Release T3D as Open Source Archived 2012-12-25 at the Wayback Machine. on GarageGames (Eric Preisz 2012-10-09)
  557. ↑ "It's here! The MIT licensed Torque 3D GitHub repo is ready!". Archived from the original on 2012-09-24.
  558. ↑ Tribes 1 and 2 source code anywhere Archived 2015-09-24 at the Wayback Machine. on garagegames.com (2013-01-04)
  559. ↑ Triplane Classic Archived 2015-12-24 at the Wayback Machine. on sourceforge.net
  560. ↑ Triplane Classic - a side-scrolling dogfighting game Archived 2016-07-21 at the Wayback Machine. on github.com
  561. ↑ Free game graphics: Tyrian ships and tiles Archived 2012-12-28 at the Wayback Machine. Daniel Cook (2007-04-04)
  562. ↑ Lost garden license Archived 2012-12-28 at the Wayback Machine.
  563. ↑ Escape from Mount Drash Archived 2016-07-21 at the Wayback Machine. on peroxide.dk "was ported from the Vic20 to PC by Telemachos. Included in the download is the sourcecode for the project. Mount Drash 0.4 Mb .zip" (2003)
  564. ↑ Meer, Alec (2012-10-12). "Patchy Like It's 1998: Unreal 1 Updated". rockpapershotgun.com. Archived from the original on 2013-01-15. Retrieved 2012-12-21. The list of fixes upon fixes are too long to mention here, but the essential purpose of v227 is to add DirectX9 and OpenAL support as well as mending everything that needs mending. Epic are aware of and permit the patch [...]
  565. ↑ Epic’s Tim Sweeney Says That Unreal Engine 1 May One Day Go Open Source on dsog.com by John Papadopoulos (January 19, 2015)
  566. ↑ Rose, Michael (2010-07-09). "Darwinia and Multiwinia Source Code Released". indiegames.com. Archived from the original on 2013-10-03.
  567. ↑ The Source Code Archived 2012-12-30 at the Wayback Machine. We get bored easily and once we've finished a game we want to work on something completely different. But wait, what if there's other cool stuff that could be done that we left out? If you are a programmer you can take any of our games to the next level by becoming a developer. Buy access to our hosted SVN repo and get forum access to chat about your mods with the rest of the community.
  568. ↑ UrbanChaos Archived 2017-05-22 at the Wayback Machine. on GitHub.com
  569. ↑ Vangers Archived 2016-07-21 at the Wayback Machine. on github.com (2016)
  570. ↑ Civil War Strategy Game 2.10 RELEASED! on hutsellgames.com
  571. ↑ The source code for the classic Civil War Strategy Game by W.R. Hutsell. on github.com/davidshq/civilwarstrategygame
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  575. ↑ Vox Archived 2016-07-15 at the Wayback Machine. on github.com/AlwaysGeeky/Vox
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  578. ↑ vqisosmall on github.com
  579. ↑ Wander (1974) — a lost mainframe game is found! Archived 2015-11-17 at the Wayback Machine. on April 22, 2015
  580. ↑ Wander (1974) release, and questions answered Archived 2015-11-17 at the Wayback Machine.
  581. ↑ "Quarter-Two Three Forums, discussion regarding the state of Warlords Battlecry 3's source code". Archived from the original on 2015-06-02.
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  583. ↑ Unofficial Patches Archived 2014-07-02 at the Wayback Machine. on patches-scrolls.de
  584. ↑ links to prominent mods and unofficial patches for WBC3 Archived 2014-08-12 at the Wayback Machine. on gog.com (2014)
  585. ↑ license Archived 2016-07-21 at the Wayback Machine. on github.com/codeka
  586. ↑ shutting down Archived 2016-07-21 at the Wayback Machine. "The game had about 45,000 downloads in total. At its peak, there were about 2,000 7-day active players and I was making around $150 per month."
  587. ↑ war-worlds-is-shutting-down Archived 2016-03-03 at the Wayback Machine. on war-worlds.com
  588. ↑ wwmmo Archived 2016-07-21 at the Wayback Machine. on github.com
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  592. ↑ Updated GPL release readme Archived 2013-03-08 at the Wayback Machine. by Jay Walker (eidos) (11 Jun 2008)
  593. ↑ "Capstone Source Archive". Lesbird.com. Archived from the original on 2015-06-21. Retrieved 2015-06-21.
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  602. ↑ Allen Pilgrim declared Xargon freeware and released the source code. Archived 2012-08-28 at the Wayback Machine. on classicdosgames.com
  603. ↑ xargon Archived 2017-05-05 at the Wayback Machine. on github.com
  604. ↑ "Community Coder Program!". goldhawkinteractive. Archived from the original on 2015-07-10. Retrieved 2015-07-09.
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  607. ↑ The DUNGEON (Zork I) source Archived 2016-07-21 at the Wayback Machine. on github.com/devshane/zork
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  614. ↑ AvP2 Source Code at bluesnews.com
  615. ↑ Parrish, Kevin (2009-07-07). "Atari 7800 Source Code Rescued – Atari released the source code for the 7800 console and games". tomsguide.com. Archived from the original on 2014-04-22. Retrieved 2012-01-09.
  616. ↑ "7800 Games & Development". atari-museum.com. 2009. Archived from the original on 2009-07-06. Retrieved 2012-01-09. These games were rescued from Atari ST format diskettes that were thrown out behind 1196 Borregas when Atari closed up in 1996. The Atari Museum rescued these important treasures and recovered them from the diskettes.
  617. ↑ Papilio-Arcade on github.com
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  628. ↑ Smith, Quintin (2010-12-14). "Dark Engine Source Code Found In A Bag". Rock, Paper, Shotgun. Archived from the original on 2011-04-26. Retrieved 2011-04-15. As of this weekend, Christmas has come early for the Through the Looking Glass community. A CD’s been discovered containing the source code for the Dark Engine, aka the engine used by Thief, Thief II and System Shock 2 (not to mention Irrational and Looking Glass’ cancelled cold war spy game Deep Cover).
  629. ↑ Humphries, Matthew (2010-12-14). "Game engine used for Thief/System Shock 2 found with Dreamcast dev kitGames". Rock, Paper, Shotgun. Archived from the original on 2015-07-05. Retrieved 2015-07-04. If you asked me which is my favorite all time video game, my number one would be Thief II. So it’s with more than a little excitement that I report the source code for the Dark Engine, used to create Thief, Thief II, and System Shock 2, has been found.
  630. ↑ "Le Corbeau" (2012-09-25). "Thief 2 V1.19 & System Shock 2 V2.4". ttlg.com. Archived from the original on 2012-11-10. Retrieved 2012-11-10. This is an unofficial patch for Thief II: The Metal Age (T2) which updates the game from v1.18 to v1.19, providing improved support for modern hardware and correcting many known bugs.
  631. ↑ Pearson, Craig (2012-02-07). "Thief 2 Is Now On Good Old Games". Rock Paper Shotgun. Archived from the original on 2012-11-11. Retrieved 2012-11-10. [...]discovered that it suffers much of the same resolution and widescreen based trouble from the previous release, but this utility [Tafferpatch] fixed all my troubles [...]
  632. ↑ "Tafferpatcher: unofficial complete patch for Thief 2". www.ttlg.com. 2012-11-10. Archived from the original on 2012-11-09. Retrieved 2012-11-10. Included patches: - Patch 1.19 which eliminates all issues with modern hardware, widescreen resolutions, multi-core systems, etc.- Various mission, gamesys, model and texture fixes.[...]
  633. ↑ timothy (2012-08-07). "Dark Reign 2 Goes Open Source". slashdot.org. Archived from the original on 2013-09-21. Retrieved 2013-08-13.
  634. ↑ "darkreign2". google code. 2011-09-01. Archived from the original on 2013-08-10. Retrieved 2013-08-19.
  635. ↑ Donkey Kong source code Archived 2015-09-28 at the Wayback Machine. at AtariAge.com
  636. ↑ Donkey Kong source code Archived 2015-09-28 at the Wayback Machine. "I think it's pretty cool that this is finally released. Have fun. (Curt should find Super Pac-Man and do that one, too...)"
  637. ↑ DragonII Archived 2016-07-21 at the Wayback Machine. on archive.org
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  641. ↑ Humphries, Matthew (2011-05-25). "Eve Online source code posted online, DMCA takedown quickly follows". geek.com. Archived from the original on 2015-11-18. Retrieved 2015-11-07. It looks as though someone has posted the source code for the space MMO Eve Online there. As you’d imagine, developer CCP isn’t too happy about this and was quick to issue the takedown request.
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  644. ↑ When EA Sports Accidentally Put a Game's Source Code on a Demo Disc by Luke Plunkett on kotaku.com (02-05-2012)
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  679. ↑ WtF Dragon (2014-11-26). "Ultima 9: The Source Code". Ultima Codex. Archived from the original on 2015-11-25. Retrieved 2015-10-28. As we continue to mark the occasion of Ultima 9’s fifteenth anniversary, I’m pleased to announced that the seemingly dormant Ultima Source Code Offline Archival Project (USCOAP) has finally borne some fruit: the Ultima Codex has added the source code for Ultima 9 to its offline archive.
  680. ↑ "BIG NEWS: Wing Commander I Source Code Archived!". wcnews.com. 2011-08-26. Archived from the original on 2013-11-09. Retrieved 2013-01-14. Thanks to an extremely kind donation from an anonymous former EA/Origin developer, the source code to the PC version of Wing Commander I is now preserved in our offline archive! Because of our agreement with Electronic Arts, we're not allowed to post recovered source code for download--but rest easy knowing that the C files that started it all are being kept safe for future reference. Our offline archive contains material that has been preserved but which can't be posted, including other source code and budget data from several of the games.
  681. ↑ "Wing Commander III – The Source Code". wcnews.com. 2011-09-13. Archived from the original on 2013-12-03. Retrieved 2013-01-14. As we celebrate Wing Commander III's first widespread retail availability since the late 1990s, we would like to mention for anyone that we have the game's source code in our offline archive. We know it's frustrating for fans, who could do amazing things with this, to read these updates... but it's also in everyone's best interests to remind EA that we have the raw material from which they could port Wing Commander III to a modern computer or console. Just let us know!
  682. ↑ "Wing Commander IV: Source Code". wcnews.com. 2012-04-03. Archived from the original on 2013-11-09. Retrieved 2013-01-14. As with Wing Commander I and Wing Commander III, we are pleased to announced that an extremely kind former EA/Origin employee has provided a copy of the Wing Commander IV source code for our preservation efforts! We can't offer it for download at this time, but it is now preserved for future use.
  683. ↑ GET LAMP Raw Interviews Pretty Much Up Archived 2016-01-30 at the Wayback Machine. on ascii.textfiles.com by Jason Scott (3 December 2012)
  684. ↑ Kohler, Chris (2008-04-18). "'Infocom Drive' Turns Up Long-Lost Hitchhiker Sequel". wired.com. Archived from the original on 2016-01-27. Retrieved 2016-01-26. Remnants of the unreleased sequel to Infocom’s text adventure version of The Hitchhiker’s Guide to the Galaxy have been made available to the public by Waxy.org. Playable prototypes, design docs, source code and a string of e-mails between Infocom designers and management provide a fascinating look at the game’s turbulent, if aborted, development process. Among the assets included: design documents, e-mail archives, employee phone numbers, sales figures, internal meeting notes, corporate newsletters, and the source code and game files for every released and unreleased game Infocom made."
  685. ↑ Baio, Andy (Apr 17, 2008). "Milliways: Infocom's Unreleased Sequel to Hitchhiker's Guide to the Galaxy". waxy.org. Archived from the original on 2016-01-26. Retrieved 2016-01-26. From an anonymous source close to the company, I've found myself in possession of the "Infocom Drive" — a complete backup of Infocom's shared network drive from 1989.[...] Among the assets included: design documents, email archives, employee phone numbers, sales figures, internal meeting notes, corporate newsletters, and the source code and game files for every released and unreleased game Infocom made
  686. ↑ Andersen, John (January 27, 2011). "Where Games Go To Sleep: The Game Preservation Crisis, Part 1". Gamasutra. Archived from the original on April 22, 2013. Retrieved January 10, 2013. The existence of decaying technology, disorganization, and poor storage could in theory put a video game to sleep permanently -- never to be played again. Troubling admissions have surfaced over the years concerning video game preservation. When questions concerning re-releases of certain game titles are brought up during interviews with developers, for example, these developers would reveal issues of game production material being lost or destroyed. Certain game titles could not see a re-release due to various issues. One story began to circulate of source code being lost altogether for a well-known RPG, preventing its re-release on a new console.
  687. ↑ "Bubble Bobble". Arcade History. September 11, 2012. Archived from the original on September 30, 2012. Retrieved January 10, 2013. In 1996, Taito announced that they lost the original source code program to Bubble Bobble following a reorganization - when it came to the recent ports and sequels, they had to work from program disassembly, playing the game and (mainly) the various home computer ports.
  688. ↑ Barenblat, Adam (July 25, 2008). "Sega Can't Find The Source Code For Your Favorite Old School Arcade Games". Kotaku. Archived from the original on December 20, 2013. Retrieved December 1, 2013.
  689. ↑ Silent Hill HD was made from incomplete code on Destructoid Archived October 16, 2013, at the Wayback Machine.
  690. ↑ oh-my-silent-hill-hd-collections-sucked-because-konami-lost-the-source-code on gameoverviews.com (2012)
  691. ↑ kingdom-hearts-1-data-is-lost-square-had-to-recreate-everything-for-hd Archived 2017-01-01 at the Wayback Machine. on siliconera.com (2013)
  692. ↑ Parrish, Kevin (July 7, 2009). "Atari 7800 Source Code Rescued – Atari released the source code for the 7800 console and games". tomsguide.com. Archived from the original on April 22, 2014. Retrieved January 9, 2012.
  693. ↑ "7800 Games & Development". atari-museum.com. 2009. Archived from the original on July 6, 2009. Retrieved January 9, 2012. These games were rescued from Atari ST format diskettes that were thrown out behind 1196 Borregas when Atari closed up in 1996. The Atari Museum rescued these important treasures and recovered them from the diskettes.
  694. ↑ M-HT (2011-11-06). "Albion". openpandora.org. Archived from the original on 2014-04-07. Retrieved 2014-04-03.
  695. ↑ M-HT (2011-06-11). "Albion". repo.openpandora.org. Archived from the original on 2014-03-31. Retrieved 2014-04-02. This is a port of the game's executable for Pandora (using static recompilation/binary translation).
  696. ↑ M-HT (2015-03-16). "Albion". boards.openpandora.org. Archived from the original on 2015-04-23. Retrieved 2015-04-24. Here is a version for Windows, in case anyone is interested. Unpack it into the directory where Albion is installed - read the Readme for more information (use Albion.cmd to run the game).
  697. ↑ github.com/M-HT/SR Archived 2017-05-07 at the Wayback Machine. on github.com
  698. ↑ Patterson, Blake (2011-12-26). "A Fascinating Look Under the Hood of 'Another World'". toucharcade.com. Archived from the original on 2013-11-09. Retrieved 2013-10-14.
  699. ↑ Sanglard, Fabien (2011-12-23). ""Another World" Code Review". fabiensanglard.net. Archived from the original on 2013-01-15. Retrieved 2013-01-14. I spent two weeks reading and reverse engineering further the source code of Another World ("Out Of This World" in North America). I based my work on Gregory Montoir's "binary to C++" initial reverse engineering from the DOS executable. I was amazed to discover an elegant system based on a virtual machine interpreting bytecode in realtime and generating fullscreen vectorial cinematic in order to produce one of the best game of all time.
  700. ↑ Bagman Archived 2017-03-08 at the Wayback Machine. on jotd.pagesperso-orange.fr
  701. ↑ Bermuda Syndrome Archived 2016-07-21 at the Wayback Machine. on cyxdown.free.fr
  702. ↑ cyxx Archived 2016-07-21 at the Wayback Machine. on github.com
  703. ↑ Bermuda Syndrome for OpenPandora Archived 2016-07-21 at the Wayback Machine. on openhandhelds.org
  704. ↑ commodore-64-rem-the-lost-art-of-source-code-archeology Archived 2016-04-10 at the Wayback Machine. on commodore.ninja by Paulo Garcia (Mar 6, 2016)
  705. ↑ Boulder Dashes ReM (2016) Archived 2016-07-21 at the Wayback Machine. on csdb.dk (2016)
  706. ↑ Reengine & Mod (ReM) Archived 2016-07-21 at the Wayback Machine. on csdb.dk
  707. ↑ DrCreep Archived 2016-02-24 at the Wayback Machine. on github.com
  708. ↑ The Castles of Dr. Creep Archived 2016-11-29 at the Wayback Machine. on steam.com
  709. ↑ OpenFodder - Open sourced Cannon Fodder gets a big 1.0 release! on indieretronews.com
  710. ↑ Releases Archived 2016-07-21 at the Wayback Machine. on github.com
  711. ↑ Chasem reverse on github.com
  712. ↑ Omnispeak — A Commander Keen Reimplementation Archived 2017-03-15 at the Wayback Machine. on davidgow.net
  713. ↑ omnispeak Archived 2017-02-23 at the Wayback Machine. on GitHub
  714. ↑ "devilution". 2015-12-08. on GitHub (June 2018)
  715. ↑ Diablo II Running on Open Pandora! Archived 2015-12-08 at the Wayback Machine. on PandoraLive (22 November 2015)
  716. ↑ notaz (2015-11-22). "Diablo II". openpandora.org. Archived from the original on 2015-12-20. Retrieved 2015-12-04. This is statically recompiled Windows executable, that was recompiled to ARM and bundled with ARM version of wine.
  717. ↑ OpenDUNE Archived 2016-03-29 at the Wayback Machine. on github.com
  718. ↑ dunedynasty Archived 2016-04-04 at the Wayback Machine. on repo.openpandora.org
  719. ↑ keeperFX Archived 2015-07-04 at the Wayback Machine.
  720. ↑ Chaos Strikes Back for Windows (and Linux, MacOS X, Pocket PC) Archived 2016-01-21 at the Wayback Machine. on Dungeon Master Encyclopedia (2005-10-24)
  721. ↑ Walker, John (2012-03-29). "You Could Be Playing Dungeon Master Right Now". Rock, Paper, Shotgun. Archived from the original on 2015-07-29. Retrieved 2015-08-03. There is a version that just works, without an emulator, and it’s free. [...] A madman by the name of Paul Stevens spent six months, eight hours a day, writing 120,000 lines of what he calls “pseudo-assembly language” to rebuild it in C++. And then released the game and source code for free. Can he do that? I’ve decided that yes, he can, which legitimises my promoting it to you.
  722. ↑ Back to the source: ReDMCSB Archived 2016-04-25 at the Wayback Machine. by Christophe Fontanel (18-Jan-2014)
  723. ↑ Is it possible to reverse engineer software without its source code? on quora.com by Doug Bell "lead developer of "Dungeon Master": Yes. Here's an example."
  724. ↑ Johnson, Phil (2014-05-06). "Digging up E.T.'s source code". ITworld. Archived from the original on 2016-04-07. The code, written in assembly language for the MOS Technology 6502 8-bit processor, has been around for a while, having been reconstructed by Dennis Debro in 2006.
  725. ↑ E.T. the Extra-Terrestrial(1982) Atari 2600 Source Code Archived 2016-03-25 at the Wayback Machine. on pastebin.com
  726. 1 2 Original Game Disassemblies Archived 2016-12-17 at the Wayback Machine. on bjars.com
  727. ↑ "Fixing E.T. The Extra-Terrestrial for the Atari 2600". Neocomputer. Archived from the original on April 8, 2013. Retrieved April 6, 2013.
  728. ↑ "NewKind". Christian Pinder. Archived from the original on 2008-08-09. Retrieved 2008-08-09.
  729. ↑ Martin, Matt (2014-09-17). "Classic space sim Elite goes free this weekend". vg247. Archived from the original on 2015-10-17. Retrieved 2015-11-06. "A superior remake of the original space trading game Elite will be released for free this weekend, 30 years after the original game launched"
  730. ↑ Bell, Ian (2014-09-20). "Elite 30th Anniversary". elitehomepage.org. Archived from the original on September 2, 2015. "Today, 20th September 2014 is the 30th anniversary of the day the world first experienced Elite, the 3D space trading and combat game written by Ian Bell and David Braben in conjunction with Acornsoft. From that beginning on the BBC Micro and Acorn Electron, the game went on to be released for most home computers of the time. Celebrate by playing Elite again, for free. Thanks to Matt Goldbolt, the original BBC Micro version now runs direct in the Google Chrome browser if you click here. Or for Windows PCs, download Christian Pinder's Elite: The New Kind by clicking here."
  731. ↑ newkind Archived 2015-12-12 at the Wayback Machine. on GitHub.
  732. ↑ "colditz escape!". sites.google.com. 2010. Archived from the original on 2016-03-10. Retrieved 2016-01-14.
  733. ↑ colditz-escape Archived 2016-07-21 at the Wayback Machine. on github.com
  734. ↑ "Exile disassembly". level7.org.uk. 2012. Archived from the original on 2013-04-13. Retrieved 2013-01-14. Published by Superior Software in 1988, Exile is widely regarded as the most technically advanced game released for the BBC Micro. Featuring an enormous procedurally generated landscape, a complete physics engine and a host of game elements to interact with, it remains unsurpassed in pushing the capabilities of the system to their limits.
  735. ↑ Exile Archived 2016-05-07 at the Wayback Machine. on thunderpeel2001.com/exile "Email from Peter Irvin (creator of Exile): Yes I've recently decided to allow old versions of Exile to be downloaded for emulation under certain conditions: [...]"
  736. ↑ Paul Robson's SDL Games Archived 2016-06-23 at the Wayback Machine. "Football Manager - A remake of the (in)famous Sinclair Spectrum Football Manager game, complete with stick-man graphics. This is reverse engineered, so it should play identically. Finished. fm-0.99.tar.gz" (May 2004)
  737. ↑ GP2X version at GP2X Archive (archived)
  738. ↑ GLFrontier Project Page!!!1 Archived 2015-11-10 at the Wayback Machine. on noflag.org.uk "This WAS the Atari ST version of the game Frontier: Elite 2 by the great man mentioned previously. It was disassembled, OS calls and hardware access removed, and originally run on a stripped down ST emulator (Hatari). Now it is compiled to C or native x86, and run much faster without 68K emulation. Most recently it has been modified to draw stuff with OpenGL at any shiny resolution with 8xAA, etc. A dandy evolution for a crappy old Atari ST game."
  739. ↑ News on eliteclub.co.uk "8th November 2000 - Following much discussion on the subject of open-source by the Elite community, we have decided to make some alterations to our previous plans for the Elite Club - we are going to relax some of the restrictions we were intending to put on the distribution of the source code. The source code will now be distributable more freely, under a licence agreement similar to the GPL (GNU Public Licence)."
  740. ↑ Welcome Commander,to the AmigaFFE Project Archived 2016-03-05 at the Wayback Machine. "after I have seen the announcement of a release of the Sources of Frontier Elite II and Frontier First Encounters on the Eliteclub-Website http://www.eliteclub.co.uk,I was very happy with it. Now it is 2001 (around 2 years since the announcement) and they still haven't released it"
  741. ↑ Jordan, John (2009-12-01). "JJFFE Central". jaj22.org.uk. Archived from the original on 2011-03-03. Retrieved 2015-11-06. What is JJFFE? JJFFE is set of recompiled replacement executables for the 1995 Frontier Developments game Frontier: First Encounters. There are currently versions that run under Windows 95/98/ME, Windows 2000, Windows XP, Windows NT4, OS/2, Linux and Mac. As well as running on many more operating systems than the original, JJFFE also includes minor improvements and bugfixes.
  742. ↑ FFE_D3D Archived 2014-07-16 at the Wayback Machine. on alioth.net
  743. ↑ halflife Archived 2017-06-27 at the Wayback Machine. on github.com/ValveSoftware
  744. ↑ xash3d-engine Archived 2016-12-20 at the Wayback Machine. on indiedb.com
  745. ↑ halflife on github.com/ptitSeb
  746. ↑ download on internet archive (February 2000)
  747. ↑ download on sleepless software
  748. ↑ open-iw on github.com
  749. ↑ igor on github.com
  750. ↑ Heart of the Alien Redux Archived 2016-10-25 at the Wayback Machine. on sourceforge.net
  751. ↑ Jet Set Willy on github.com
  752. ↑ lotr Archived 2014-02-01 at the Wayback Machine. by Michal Beneš on wonderland.cz
  753. ↑ Lord of the Rings on pyra-handheld.com (2017)
  754. ↑ OpenKKND on GitHub
  755. ↑ Twin-e Archived 2015-07-25 at the Wayback Machine. on SourceForge
  756. ↑ Twine-e Archived 2015-10-26 at the Wayback Machine. on GitHub.
  757. ↑ 'Alone in the Dark 1' recode released - v0.1 Archived 2015-10-26 at the Wayback Machine. on vogons.org
  758. ↑ Manic Miner on github.com
  759. ↑ MetroidMMC3 Archived 2016-07-21 at the Wayback Machine. on github.com
  760. ↑ Metroid Source Code Archived 2016-01-04 at the Wayback Machine. on metroid-database.com
  761. ↑ world-of-might-and-magic on GitHub
  762. ↑ The Mod Coder Pack Archived 2016-08-30 at the Wayback Machine. on modcoderpack.com
  763. ↑ nicky on cyxdown.free.fr (December 26, 2007)
  764. ↑ nicky on github.com/cyxx
  765. ↑ The Comprehend Adventures Archived 2016-07-26 at the Wayback Machine. on graphicsmagician.com
  766. ↑ recomprehend by Ryan Mallon on github.com
  767. ↑ TheLostVikingsTools
  768. ↑ outrun-decompilation-project Archived 2016-12-21 at the Wayback Machine. (2009-08-01)
  769. ↑ Cannonball-manual Archived 2014-09-06 at the Wayback Machine. on github.com
  770. ↑ cannonball_ptitseb Archived 2016-12-20 at the Wayback Machine. on repo.openpandora.org
  771. ↑ pokered Archived 2016-07-21 at the Wayback Machine. on github.com
  772. ↑ pokecrystal Archived 2016-07-21 at the Wayback Machine. on github.com
  773. ↑ fabricating-hardware-from-the-original-arcade-pong-schematics Archived 2016-05-13 at the Wayback Machine. on hackaday.com
  774. ↑ Pong Archived 2016-05-29 at the Wayback Machine. on atarihq.com
  775. ↑ Pong Reborn Archived 2016-06-10 at the Wayback Machine.
  776. ↑ "OpenRCT2 project – Open-Source adaption of RollerCoaster Tycoon 2, gets a beta release". indieretronews.com. 2015-09-08. Retrieved 2015-11-15. I'm sure many of you remember the awesome game that is RollerCoaster Tycoon 2; a game by Chris Sawyer and published by Infograms in which you manage your very own theme park, with all its rides, shops, guests and economic fortune. Well that same game is now being given a much needed adjustment with the latest release of OpenRCT2 Project. An open source development which improves the game even further with new features, original bug fixes, raised game limits and much more! [...] Development started on April 2nd 2014 by Ted 'IntelOrca' John and thanks to numerous contributions from others
  777. ↑ "OpenRCT2". GitHub. Archived from the original on 2015-10-16. Retrieved 2015-11-15.
  778. ↑ Powerslave EX released Archived 2016-03-04 at the Wayback Machine., powerslaveex.wordpress.com.
  779. 1 2 Ruhland, Perry (May 4, 2015). "An Interview With the Man Rebuilding Powerslave". TechRaptor. Archived from the original on November 19, 2015. Retrieved November 18, 2015.
  780. ↑ Turok: The Dinosaur Hunter PC remake to resume development this year Archived 2016-07-10 at the Wayback Machine. on videogamer.com by James Orry "The news comes from PC dev Samuel "Kaiser" Villarreal, who leaked the news speaking to Tech Raptor. Kaiser is currently remaking '96 shooter PowerSlave, and was asked about giving the same treatment to Turok." (8th May, 2015)
  781. ↑ Source code to my hobby project, PowerslaveEX, has been made public! by SVKaiser on twitter.com
  782. ↑ PowerslaveEX Archived 2017-05-24 at the Wayback Machine. on github.com
  783. ↑ "VOGONS • View topic - Snipes ported to C/C++ with 100% logic compatibility and replay recording". www.vogons.org. Archived from the original on 2016-08-27. Retrieved 2016-08-25.
  784. ↑ Snipes on github.com
  785. ↑ superbomberman Archived 2016-07-21 at the Wayback Machine. on GitHub by Lior Halphon
  786. ↑ A COMPREHENSIVE SUPER MARIO BROS. DISASSEMBLY Archived 2015-10-26 at the Wayback Machine. on GitHub by doppelganger
  787. ↑ SuperMarioBros-C on github.com
  788. ↑ spaceace iigs Archived 2015-08-10 at the Wayback Machine. on GitHub.
  789. ↑ Space-Ace Archived 2015-07-25 at the Wayback Machine. on whatisthe2gs.apple2.org.za
  790. ↑ man-makes-star-castle-for-atari-2600-30-years-after-atari-said-it-couldnt-be-done Archived 2016-12-20 at the Wayback Machine. on eurogamer
  791. ↑ star-castle-2600-story Archived 2016-12-21 at the Wayback Machine. on starcastle2600.blogspot.com
  792. ↑ atari-2600-star-castle Archived 2017-03-21 at the Wayback Machine. on kickstarter.com (2012)
  793. ↑ Release: Starcraft Archived 2016-01-28 at the Wayback Machine. on pyra-handheld.com "As you can see it doesn't look much different from x86 disassembly, the only difference is that you can compile it for other 32bit archs (there is no way it would work on 64bit.."
  794. ↑ Steinlechner, Peter (2014-03-10). "Starcraft für ARM-Handheld kompiliert" (in German). golem.de. Archived from the original on 2014-03-30. Retrieved 2014-03-25.
  795. ↑ notaz (2014-03-04). "StarCraft". openpandora.org. Archived from the original on 2014-03-30. Retrieved 2014-03-26.
  796. ↑ StawdewValley on github.com
  797. ↑ Stardew-Valley-Patch-Project on github.com
  798. ↑ Early-development Jedi Knight: Dark Forces 2 game engine recreation on github.com
  799. ↑ Sanglard, Fabien (2014-01-22). "Reverse Engineering Strike Commander". Archived from the original on 2014-01-23. Retrieved 2014-01-23. Most people assume the source codes and gold versions of all finished games were stored in a Vault somewhere at EA. But after getting in touch with people at Wing Commander CIC, it appeared that all the source code was lost when the company closed.[...] On his first day one developer managed to delete the full 900MB of Strike Commander source tree.
  800. ↑ libRealSpace Archived 2014-11-25 at the Wayback Machine. on GitHub
  801. ↑ S3DNA DOS Source Code Reconstructed Archived 2015-11-17 at the Wayback Machine. on 28. August
  802. ↑ w3d_plus Archived 2015-11-17 at the Wayback Machine. on bitbucket.org
  803. ↑ Re: Restoration of a few games' EXEs versions Archived 2015-11-17 at the Wayback Machine. on classicdosgames
  804. ↑ 2010-01-26: Syndicate Wars Port - a reverse-engineering tale Archived 2016-03-04 at the Wayback Machine.
  805. ↑ About Archived 2015-11-05 at the Wayback Machine. "Syndicate Wars Port is a port of the 1996 DOS game Syndicate Wars to modern operating systems. In particular, it runs on GNU, Mac OS and Windows, but it should also work on any system supported by the SDL library on the i386 architecture."
  806. ↑ The First Video Game? Archived 2016-01-01 at the Wayback Machine. Schematics
  807. ↑ Resurrecting Tennis for Two, a video game from 1958 Archived 2015-07-03 at the Wayback Machine. by Windell Oskay on evilmadscientist.com (July 16, 2008)
  808. ↑ The-Great-Escape Archived 2016-07-21 at the Wayback Machine. on github.com/dpt
  809. ↑ The Great Escape Archived 2016-04-17 at the Wayback Machine. slides by David Thomas
  810. ↑ TheLastNinja Archived 2016-02-24 at the Wayback Machine. on github.com
  811. ↑ Decompiled Tomb Raider Source Code Reveals Loads Of Vulgar Words (NSFW) by Logan Booker on kotaku.com (2018-02-17)
  812. ↑ TOMB5 on github
  813. ↑ decompiling_the_original_tomb_raider_games on reddit.com
  814. ↑ ReC98 Archived 2016-08-29 at the Wayback Machine. on github.com
  815. ↑ "OpenTTD 0.1.1". SourceForge page about OpenTTD. Archived from the original on 2010-07-02. Retrieved 2009-12-11.
  816. ↑ "TTDPatch origin". Transport Tycoon Forums. Archived from the original on 2011-09-27. Retrieved 2009-12-11.
  817. ↑ u3history Archived 2015-01-20 at the Wayback Machine. on sven.50webs.org
  818. ↑ Oric Game remakes Archived 2016-07-21 at the Wayback Machine. on jotd.pagesperso-orange.fr "I have written a set of tools to convert BASIC and asm code to C and assemble them together. I have used them over the years to convert a few games. Some conversions get some enhancements, some not."
  819. ↑ HouseOfDeath_dev.zip Archived 2016-07-21 at the Wayback Machine. on jotd.pagesperso-orange.fr
  820. ↑ L'Aigle d'Or Archived 2016-07-21 at the Wayback Machine. on pyra-handheld.com by ptitSeb (Dec 20, 2014)
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