_windows.md

Windows

• 0 A.D. (C, C++, JavaScript, GPL-2.0, beta)
• 1oom (C, GPL-2.0, mature)
• 2006scape (Java, GPL-3.0, mature)
• 2009scape (Java, Kotlin, AGPL-3.0, mature)
• 2H4U (C++, GPL-2.0, mature, inactive since 2007)
• 3DWorld (C++, GPL-3.0, mature)
• 4D Maze Game (Java, Public domain, mature, inactive since 2008)
• 4D-TRIS (C, GPL-2.0, mature, inactive since 2012)
• Abe's Amazing Adventure (C, GPL-2.0, mature, inactive since 2005)
• Abuse 1996 (C++, Lisp, Custom, Public domain, GPL-2.0, WTFPL, mature, inactive since 2016)
• AdaGate (Ada, GPL-3.0, mature)
• Airstrike (C, GPL-2.0, beta, inactive since 2014)
• Akhenaten (C++, C, AGPL-3.0, beta)
• Alchemy Quest (C++, GPL-2.0, mature)
• Aleph One (C++, Lua, GPL-3.0, mature)
• Alex the Allegator 4 (C, GPL-2.0, mature, inactive since 2003)
• Alex vs Bus: The Race (C, GPL-3.0, mature)
• Ambermoon.net (C#, GPL-3.0, mature)
• Ambrose3D (C++, zlib, beta, inactive since 2007)
• AndEngine (Java, Apache-2.0, mature, inactive since 2013)
• AnKi 3D engine (C++, 3-clause BSD, beta)
• Annex: Conquer the World (Lua, GPL-3.0, mature, inactive since 2014)
• AntiChess (Java, MIT, beta, inactive since 2003)
• Anura (C, C++, zlib, mature)
• Arcane-Engine (C++, MIT, beta)
• Ares Dogfighter (Java, GPL-3.0, beta, inactive since 2016)
• Armory (Haxe, Python, zlib, mature)
• AssaultCube (C, C++, Custom, mature, inactive since 2018)
• Atomic Tanks (C++, C, GPL-2.0, mature, inactive since 2016)
• Augustus (C, C++, AGPL-3.0, mature)
• Aussenposten (JavaScript, MIT, beta, inactive since 2015)
• Azimuth (C, GPL-3.0, mature)
• Battle Tanks (C++, GPL-2.0, mature, inactive since 2009)
• Belote (Java, Pascal, GPL-3.0, beta)
• Berusky (C++, GPL-3.0, mature)
• Biniax (C, zlib, mature, inactive since 2012)
• Bitfighter (C, C++, GPL-2.0, mature)
• Black Shades (C, GPL-3.0, mature)
• Blackvoxel (C++, GPL-3.0, mature)
• Bladecoder Adventure Engine (Java, Apache-2.0, mature)
• Blitwizard (C, C++, Lua, zlib, beta, inactive since 2015)
• Blobby Volley 2 (C++, GPL-2.0, mature)
• Blobwars: Metal Blob Solid (C++, C, GPL-2.0, mature)
• Block Attack - Rise of the Blocks (C++, GPL-2.0, mature)
• BlockOut II (C++, GPL-2.0, mature, inactive since 2014)
• Blue Nebula (C, C++, zlib, mature)
• Boardspace.net (Java, PHP, C, GPL-3.0, mature)
• BomberClone (C, GPL-2.0, beta, inactive since 2010)
• Bombermaaan (C++, GPL-3.0, mature, inactive since 2010)
• Boxcars (Go, AGPL-3.0, mature)
• Brain Workshop (Python, GPL-2.0, mature, inactive since 2011)
• Brogue (C, AGPL-3.0, mature)
• Brutal Chess (C++, GPL-2.0, beta, inactive since 2007)
• BStone (C++, C, GPL-2.0, mature)
• Build engine (C, C++, Custom, mature)
• BZFlag (C++, LGPL-2.1, MPL-2.0, mature)
• C-Dogs SDL (C, GPL-2.0, mature)
• CaesarIA (C++, JavaScript, C, GPL-3.0, beta)
• Cannon Smash (C++, GPL-2.0, beta, inactive since 2003)
• Canta (Python, GPL-3.0, beta, inactive since 2011)
• Caph (C, GPL-3.0, mature, inactive since 2010)
• Captain Blood (C++, C, GPL-3.0, mature)
• Carnage3D (C++, C, MIT, beta)
• Cart Life (AGS Script, Custom, mature, inactive since 2014)
• Cartographer (GDScript, Apache-2.0, mature)
• Castor3D (C++, MIT, beta)
• Cat Mother Dead Justice (C++, 3-clause BSD, GPL-2.0, beta, inactive since 2003)
• Cataclysm: Dark Days Ahead (C++, CC-BY-SA-3.0, mature)
• CatacombGL (C++, GPL-3.0, beta)
• CaveExpress (C, JavaScript, GPL-3.0, mature)
• CavePacker (JavaScript, C, C++, Lua, GPL-3.0, mature)
• Childsplay (Python, GPL-3.0, mature)
• Chocolate Doom (C, GPL-2.0, mature)
• Chronoshift (C++, GPL-2.0, beta)
• Chunk Stories (Kotlin, Java, LGPL-3.0, beta)
• Circus Linux! (C, GPL-2.0, mature, inactive since 2000)
• Citybound (Rust, JavaScript, AGPL-3.0, beta)
• ClanLib (C, C++, zlib, mature)
• Classic RBDoom 3 BFG (C, C++, GPL-3.0, mature)
• ClassiCube (C, 3-clause BSD, mature)
• Clonepoint (C++, GPL-3.0, beta)
• Colditz Escape (C, GPL-3.0, mature)
• Combat Simulator Project (C++, GPL-2.0, beta, inactive since 2010)
• Commander Genius (C, C++, GPL-2.0, mature)
• Cortex Command Community Project (C++, C, Lua, AGPL-3.0, mature)
• CoTerminalApps (Ada, GPL-3.0, mature)
• Crack Attack! (C++, GPL-2.0, mature, inactive since 2005)
• Craft (C, Python, MIT, mature, inactive since 2017)
• Cro-Mag Rally (C, CC-BY-SA-4.0, mature)
• CroftEngine (C++, Python, LGPL-3.0, beta)
• CrossUO (C, C++, GPL-3.0, mature)
• Crystal Space 3D SDK (C, C++, LGPL-2.1, mature, inactive since 2015)
• ct.js (JavaScript, TypeScript, MIT, mature)
• Cube 2: Sauerbraten (C, C++, Custom, mature, inactive since 2020)
• Cube (C, C++, Custom, mature, inactive since 2005)
• Cultivation (C++, Public domain, mature, inactive since 2010)
• Curse of War (C, C++, GPL-3.0, mature, inactive since 2014)
• Cytadela (C++, GPL-3.0, beta, inactive since 2013)
• D-Fend Reloaded (Pascal, GPL-3.0, mature, inactive since 2015)
• D2X-XL (C++, Custom, GPL-2.0, mature, inactive since 2015)
• Daedalus (C++, GPL-2.0, mature, inactive since 2018)
• Daggerfall Unity (C#, MIT, mature)
• Dagon (D, BSL-1.0, beta)
• DarkPlaces (C, GPL-2.0, mature, inactive since 2014)
• Dave Gnukem (C++, GPL-2.0, mature)
• DDraceNetwork (C, C++, zlib, mature)
• Deer Portal (C++, zlib, beta)
• Defendguin (C, GPL-2.0, mature, inactive since 2009)
• DeSmuME (C, C++, GPL-2.0, mature, inactive since 2015)
• Destination Sol (Java, Apache-2.0, mature)
• Dethrace (C, GPL-3.0, beta)
• dhewm3 (C, C++, GPL-3.0, mature)
• Digital: A Love Story (Ren'Py, Python, CC-BY-NC-SA-3.0, mature)
• dim3 (C, MIT, beta, inactive since 2014)
• Dink Smallwood HD (C, C++, Custom, mature)
• DirectPython (C++, 2-clause BSD, beta, inactive since 2007)
• DirectX12GameEngine (C#, MIT, beta)
• Do It Yourself Doom With SDL (C++, MIT, beta)
• Domination (Java, GPL-3.0, mature)
• donut (C, C++, GPL-3.0, beta)
• Doom Legacy (C++, GPL-2.0, mature)
• DOOM Retro (C, C++, GPL-3.0, mature)
• Doom64EX (C, C++, GPL-2.0, mature)
• Doomsday Engine (C, C++, GPL-2.0, GPL-3.0, LGPL-3.0, mature)
• Dope Wars (C, GPL-2.0, mature, inactive since 2013)
• Double Damnation (C#, GPL-3.0, mature, inactive since 2022)
• DreamChess (C, GPL-3.0, beta)
• DRL (Lua, Pascal, GPL-2.0, mature)
• Dstroy (C++, GPL-2.0, mature, inactive since 2009)
• Duck Marines (Lua, zlib, mature, inactive since 2016)
• Duel Commander (C, GPL-3.0, beta, inactive since 2009)
• Dune II - The Maker (Java, MIT, beta, inactive since 2020)
• Dungeon of Quake (Odin, Pascal, MIT, Unlicense, beta)
• Dungeon (Java, 3-clause BSD, mature)
• Dust Racing 2D (C, C++, GPL-3.0, mature)
• DwarfCorp (C#, MIT, mature)
• DXX-Rebirth (C, C++, Python, GPL-3.0, Custom, mature)
• EasyRPG Editor (C++, GPL-3.0, mature)
• Eat The Whistle (C, ?, mature, inactive since 2017)
• ECWolf (C++, GPL-2.0, LGPL-2.1, zlib, MIT, IJG, Public domain, mature)
• EDGE (C++, C, GPL-2.0, mature)
• ElonaFoobar (C++, Lua, MIT, mature)
• Emilia Pinball (C++, GPL-2.0, beta)
• Empty Clip (C++, GPL-2.0, mature)
• EmptyEpsilon (C, C++, Lua, GPL-2.0, mature)
• Enigma (C, C++, GPL-2.0, mature)
• Escape Towards The Unknown (C, GPL-2.0, beta, inactive since 2016)
• Esenthel Engine (C, C++, Custom, beta)
• ET: Legacy (C, C++, Lua, GPL-3.0, mature)
• Etterna (C, C++, Lua, MIT, beta)
• ezEngine (C++, JavaScript, MIT, mature)
• ezQuake (C, C++, GPL-2.0, mature)
• F-1 Spirit (C++, ?, beta, inactive since 2009)
• Falcon's Eye (C, NetHack General Public License, mature, inactive since 2004)
• Fallout 2 Community Edition (C++, Custom, mature)
• Falltergeist (C++, GPL-3.0, beta)
• Faur (C, Python, C++, GPL-3.0, beta)
• FIFE (C++, Python, LGPL-2.1, beta)
• Fire Madness (Pascal, GPL-3.0, mature, inactive since 2016)
• Fish Fillets - Next Generation (C++, GPL-2.0, mature)
• Fitzquake (C, GPL-2.0, beta, inactive since 2009)
• Flare (C++, Java, Python, GPL-3.0, mature)
• FlightGear (C++, GPL-2.0, mature)
• flixel-gdx (Java, 3-clause BSD, beta, inactive since 2017)
• FLTK Recycling Game! (C++, LGPL-2.1, mature, inactive since 2014)
• FLTrator (C++, GPL-3.0, mature, inactive since 2016)
• Flukz (C++, GPL-2.0, beta, inactive since 2014)
• FooBillard++ (C, GPL-2.0, mature, inactive since 2012)
• FooBillard (C, GPL-2.0, mature, inactive since 2010)
• Foxy Misfortunes (Pascal, GPL-3.0, mature)
• Free Mars (Java, GPL-3.0, mature)
• freeablo (C++, GPL-3.0, beta)
• Freedoom (None, Python, None, beta)
• FreeHeroes (C++, MIT, beta)
• Freeminer (C++, Lua, GPL-3.0, beta)
• FreeRCT (C++, GPL-2.0, beta)
• FreeSims (C#, MPL-2.0, beta)
• FreeSpace 2 Source Code Project (C, C++, Unlicense, mature)
• freeVikings (Ruby, GPL-2.0, beta)
• Frets on Fire (Python, GPL-2.0, mature, inactive since 2008)
• FTEQW (C, GPL-2.0, mature)
• FunLabyrinthe (Pascal, GPL-2.0, mature, inactive since 2012)
• Game Editor (C, C++, GPL-3.0, mature, inactive since 2014)
• GameCake (C, C++, Lua, MIT, mature)
• gamekit (C++, C, zlib, mature, inactive since 2015)
• GamePlay (C++, C, Apache-2.0, mature, inactive since 2016)
• Gang Garrison 2 (Game Maker Script, MPL-2.0, mature)
• GBDK (C, Assembly, C++, MIT, mature)
• GCompris (C, Python, GPL-3.0, mature)
• GeonBit.UI (C#, MIT, mature)
• Gideros (C, C++, Lua, ?, mature)
• Gilbert and the doors (C, GPL-3.0, mature, inactive since 2018)
• GL-117 (C++, GPL-2.0, mature, inactive since 2005)
• glParchis (Python, GPL-3.0, mature)
• GLtron (C, ?, beta, inactive since 2017)
• GNU Chess (C++, GPL-3.0, mature, inactive since 2017)
• GNU FreeDink (C, GPL-3.0, mature, inactive since 2012)
• GNU Go (C, GPL-3.0, mature, inactive since 2011)
• Go Ollie! (?, GPL-3.0, mature, inactive since 2011)
• Golly (C++, Java, GPL-2.0, mature)
• Gorgon (C#, MIT, mature)
• GoRogue (C#, MIT, mature)
• Gottet (C++, GPL-3.0, mature)
• Goxel (C, C++, GPL-3.0, beta)
• GPL Arcade Volleyball (C++, GPL-2.0, beta, inactive since 2006)
• Gravitation (C++, Public domain, mature, inactive since 2008)
• Grobots (C++, GPL-2.0, mature, inactive since 2014)
• GUSANOS (C++, GPL-2.0, beta, inactive since 2006)
• Gusty's Serpents (C++, GPL-3.0, beta, inactive since 2014)
• GZDoom (C, C++, GPL-3.0, mature)
• halley (C, C++, Apache-2.0, beta)
• Hammer of Thyrion (C, GPL-2.0, mature)
• Hardwar (C++, GPL-3.0, beta, inactive since 2015)
• Harmonist: Dayoriah Clan Infiltration (Go, ISC, beta)
• HaxePunk (Haxe, MIT, mature)
• Head over Heels (C++, GPL-3.0, mature)
• Heart of the Alien (C, GPL-2.0, beta, inactive since 2005)
• Hedgewars (Lua, C, C++, Pascal, Haskell, GPL-2.0, mature)
• Help Hannah's Horse (C++, GPL-2.0, beta, inactive since 2008)
• Hexoshi (Python, GPL-3.0, beta, inactive since 2016)
• HGE (C, Haskell, zlib, beta, inactive since 2013)
• HoDoKu (Java, GPL-3.0, mature, inactive since 2013)
• Holtz (C++, GPL-2.0, mature)
• HoverRace (C++, Custom, mature, inactive since 2016)
• HyperRogue (C++, GPL-2.0, mature)
• Hypersomnia (C++, AGPL-3.0, mature)
• I Have No Tomatoes (C++, zlib, mature, inactive since 2004)
• Ice Breaker (C, GPL-2.0, mature, inactive since 2003)
• iiChantra (C++, MIT, beta, inactive since 2012)
• ika (C++, Python, PHP, C#, GPL-2.0, beta, inactive since 2007)
• Inexor (C++, JavaScript, zlib, beta, inactive since 2018)
• Infinite Mario Bros (Java, 3-clause BSD, mature, inactive since 2010)
• Infinite Tux (Java, GPL-3.0, Public domain, mature)
• Infon Battle Arena (C, Lua, GPL-2.0, beta, inactive since 2012)
• INSTEAD (C, Lua, Java, MIT, mature)
• Intersect (C#, MIT, GPL-2.0, beta)
• Intricacy (Haskell, GPL-3.0, beta)
• ioquake3 (C, GPL-2.0, mature)
• iortcw (C, C++, GPL-3.0, mature)
• irrlamb (C, C++, GPL-3.0, mature)
• Jake2 (Java, GPL-2.0, beta, inactive since 2006)
• Jamp (C++, GPL-3.0, beta, inactive since 2009)
• Javelin (Java, GPL-2.0, mature, inactive since 2016)
• Jazz² Resurrection (C#, JavaScript, GPL-3.0, mature)
• JGame (Java, 3-clause BSD, mature, inactive since 2012)
• JonoF's Shadow Warrior Port (JFSW) (C, GPL-2.0, beta, inactive since 2005)
• JSkat (Java, GPL-3.0, Apache-2.0, beta)
• JSoko (Java, GPL-3.0, mature)
• Julius (C, C++, AGPL-3.0, mature)
• Jump Don't Die (Java, GPL-3.0, mature)
• Jump'n'Bump (C, GPL-2.0, mature, inactive since 2004)
• KeeperRL (C, C++, GPL-2.0, beta)
• KevEdit (C, GPL-2.0, mature)
• Key Runner (C++, Script, GPL-3.0, mature, inactive since 2013)
• kiki the nano bot (C++, Public domain, mature, inactive since 2007)
• Killer Crates (Java, MIT, beta, inactive since 2017)
• KlayGE (C++, GPL-2.0, mature)
• Knights (C++, GPL-3.0, beta, inactive since 2014)
• Kobo Deluxe (C++, GPL-2.0, beta, inactive since 2007)
• Krank (Python, Public domain, beta, inactive since 2008)
• Kryftolike (Pascal, GPL-3.0, mature)
• L'Abbaye des Morts (C, GPL-3.0, mature, inactive since 2018)
• LambdaHack (Haskell, 3-clause BSD, beta)
• LambdaRogue: The Book of Stars (Pascal, GPL-2.0, mature, inactive since 2012)
• Laser Kombat (C++, GPL-3.0, mature)
• LGames (C++, GPL-2.0, mature)
• Liberal Crime Squad (C++, GPL-2.0, mature, inactive since 2012)
• Liblast (GDScript, AGPL-3.0, beta)
• Librelancer (C, C#, MIT, beta)
• LibreMines (C++, GPL-3.0, mature)
• Librerama (GDScript, GPL-3.0, mature)
• LIKO-12 (Lua, Rust, MIT, mature)
• LimonEngine (C, C++, LGPL-3.0, beta)
• LionEngine (Java, GPL-3.0, mature)
• LITIENGINE (Java, MIT, beta)
• Lix (D, C++, CC0, beta)
• Lode Runner 2020 (C++, C, Java, MIT, mature)
• Loon Game (Java, C#, Apache-2.0, beta)
• Love2dCS (C#, C++, MIT, mature)
• LPairs (C++, GPL-3.0, mature, inactive since 2021)
• Lugaru HD (C++, GPL-2.0, mature)
• Lumos Engine (C++, MIT, beta)
• Luola (C, GPL-2.0, mature, inactive since 2005)
• LÖVE (C++, zlib, mature)
• Maelstrom (C, C++, GPL-2.0, mature, inactive since 2002)
• Mafia: Toolkit (C#, MIT, mature)
• MafiaUnity (C#, Apache-2.0, beta, inactive since 2020)
• MAGE - Matthias Advanced Game Engine (C++, GPL-3.0, beta)
• Magical Life (C#, MIT, beta)
• ManaPlus (C++, C, GPL-3.0, mature)
• ManiaDrive (PHP, ?, mature, inactive since 2008)
• Manic Digger (C#, Public domain, Unlicense, mature, inactive since 2017)
• Marble Marcher (C++, GPL-2.0, mature)
• Mari0 (Lua, MIT, mature, inactive since 2012)
• Maxit (C++, 3-clause BSD, mature, inactive since 2014)
• Mazer (Pascal, GPL-3.0, beta, inactive since 2018)
• Me and My Shadow (C++, GPL-3.0, beta)
• Mega Mario (C++, LGPL-2.1, mature, inactive since 2012)
• MekWars (Java, GPL-2.0, mature)
• Metaforce (C, C++, MIT, beta)
• Metar Sweeper (Pascal, GPL-3.0, beta, inactive since 2015)
• MicroWar 2.0 (Python, 3-clause BSD, mature, inactive since 2009)
• Mindustry (Java, GPL-3.0, mature)
• Minetest (C, C++, Lua, LGPL-2.1, mature)
• mini2Dx (Java, C#, Apache-2.0, mature)
• Minilens (GDScript, GPL-3.0, mature, inactive since 2018)
• Mininim (C, GPL-3.0, beta, inactive since 2017)
• MiniPacman (Ada, GPL-3.0, mature)
• Moagg2 (Java, GPL-2.0, mature, inactive since 2008)
• Mojotron: Robot Wars (C++, GPL-2.0, mature, inactive since 2019)
• Monofoxe (C#, MIT, mature)
• Monsterz (Python, WTFPL, beta, inactive since 2007)
• Moonbase Assault (Java, MIT, beta, inactive since 2019)
• Moubootaur Legends (C, C++, Script, GPL-3.0, beta)
• Mr. Rescue (Lua, zlib, mature, inactive since 2016)
• Murder In The Public Domain (C++, GPL-3.0, mature, inactive since 2013)
• Nanosaur II: Hatchling (C, C++, CC-BY-NC-SA-4.0, mature)
• Nanosaur (C, CC-BY-NC-SA-4.0, mature)
• Nazara Engine (C, C++, MIT, beta)
• ncurses (C, MIT, mature)
• neoGFX (C++, GPL-3.0, beta)
• NetMauMau (C++, LGPL-3.0, mature, inactive since 2015)
• NetRadiant-custom (C++, C, GPL-2.0, mature)
• Netrek (C, Custom, mature, inactive since 2009)
• Neverball (C, C++, GPL-2.0, mature)
• Nexuiz (C++, GPL-2.0, mature)
• NFSIISE (C, MIT, mature)
• Nikwi (C++, GPL-2.0, beta, inactive since 2012)
• No Gravity (C, GPL-2.0, mature, inactive since 2006)
• Noiz2sa (C, C++, 2-clause BSD, beta, inactive since 2004)
• Not Pacman (Lua, WTFPL, mature, inactive since 2013)
• NOVA PINBALL (Lua, GPL-3.0, beta, inactive since 2017)
• NStars! (C#, ?, beta, inactive since 2004)
• NullpoMino (Java, 3-clause BSD, mature)
• Numpty Physics (C++, GPL-3.0, beta, inactive since 2016)
• nXtank (Python, C++, GPL-3.0, beta, inactive since 2010)
• OceanPop (C++, MIT, mature)
• OGS Mahjong (C++, GPL-3.0, mature, inactive since 2016)
• OldSkool Gravity Game (C++, C, GPL-3.0, mature, inactive since 2016)
• ONScripter (C++, GPL-2.0, mature, inactive since 2020)
• Oolite (Objective-C, C, JavaScript, GPL-2.0, mature)
• Open Fodder (C, C++, GPL-3.0, mature)
• Open Game Engine (C++, LGPL-2.1, beta, inactive since 2008)
• Open Horizon (C++, MIT, beta)
• Open Kick-Off (Java, MIT, beta)
• Open Quartz (C, GPL-2.0, beta, inactive since 2004)
• Open Rodent's Revenge (C++, MIT, beta, inactive since 2018)
• Open RSC (Java, C++, C, Objective-C, AGPL-3.0, mature)
• Open Yahtzee (C++, GPL-2.0, mature, inactive since 2016)
• OpenAlchemist (C++, GPL-2.0, beta, inactive since 2010)
• OpenArena Engine (C, GPL-2.0, mature, inactive since 2012)
• openblack (C, C++, GPL-3.0, beta)
• OpenBlok (C++, GPL-3.0, beta)
• OpenBlox (Python, Lua, GPL-3.0, beta, inactive since 2011)
• OpenBVE (C#, Public domain, mature)
• OpenClonk (C, C++, ISC, mature)
• OpenD2 (C, C++, GPL-3.0, beta)
• OpenDiablo2 (Go, GPL-3.0, mature)
• OpenDungeons (C++, GPL-3.0, beta)
• OpenEnroth (C++, LGPL-3.0, beta)
• OpenGOAL (Lisp, C++, ISC, beta)
• OpenGothic (C++, MIT, beta)
• OpenHoW (C, C++, GPL-3.0, beta)
• OpenHV (C#, Lua, GPL-3.0, beta)
• OpenJazz (C++, GPL-2.0, beta)
• OpenJK (C, C++, GPL-2.0, beta)
• OpenKrush (C#, GPL-3.0, beta)
• OpenLara (C++, C, 2-clause BSD, mature)
• OpenLiberty (GDScript, MIT, beta)
• OpenLieroX (C++, LGPL-2.0, mature)
• OpenLoco (C++, MIT, mature)
• OpenMortal (C++, Perl, GPL-2.0, beta, inactive since 2006)
• openMSX (C++, GPL-2.0, mature)
• OpenNefia (C#, Lua, MIT, beta)
• OpenOMF (C, C++, MIT, beta)
• OpenRCT2 (C++, GPL-3.0, mature)
• OpenRW (C, C++, GPL-3.0, beta)
• OpenSAGE (C#, LGPL-3.0, beta)
• OpenSolomonsKey (C++, Unlicense, beta)
• OpenSpades (C, C++, AngelScript, GPL-3.0, beta)
• OpenSupaplex (C, GPL-3.0, mature)
• OpenTESArena (C++, MIT, beta)
• OpenTomb (C, C++, Lua, LGPL-3.0, beta)
• OpenTyrian (C, GPL-2.0, beta, inactive since 2018)
• OpenVIII (C#, MIT, beta)
• OPMon (C++, GDScript, GPL-3.0, beta)
• opsu! (Java, GPL-3.0, mature)
• Oreon Engine (Java, GPL-3.0, mature)
• Orx (C, zlib, mature)
• osu! (C#, MIT, beta)
• ouzel (C, C++, Objective-C, 2-clause BSD, beta)
• Overgod (C, GPL-2.0, mature, inactive since 2005)
• Overload (C, C++, MIT, mature)
• Pacewar (Python, GPL-3.0, mature, inactive since 2017)
• Pachi (C, Python, GPL-2.0, mature)
• PainTown (C++, Java, Python, 3-clause BSD, mature)
• PARSEC47 (D, 2-clause BSD, beta, inactive since 2003)
• Passage (C++, Public domain, mature, inactive since 2011)
• PCExhumed (C++, Custom, beta)
• Penguin Command (C, GPL-2.0, mature, inactive since 2007)
• Pentagram (C++, GPL-2.0, beta, inactive since 2018)
• Performous (C, C++, GPL-2.0, mature)
• PGU (Python, LGPL-2.1, mature)
• Physics Platformer (Java, MIT, beta, inactive since 2019)
• Physics Spacewar (Java, MIT, beta, inactive since 2019)
• Pillows (Python, GPL-2.0, beta, inactive since 2007)
• Pingus (C++, Scheme, GPL-3.0, mature)
• Pink Pony (C++, GPL-3.0, mature, inactive since 2017)
• PipeWalker (C++, GPL-3.0, beta, inactive since 2012)
• Pixel Dungeon (Java, GPL-3.0, mature, inactive since 2015)
• Pixel Wheels (Java, GPL-3.0, mature)
• PixelLight (C, C++, MIT, mature, inactive since 2012)
• Planet Rider (GDScript, GPL-3.0, mature, inactive since 2015)
• PLIB (C++, LGPL-2.0, mature, inactive since 2012)
• PokerTH (C++, AGPL-3.0, mature, inactive since 2017)
• Powerslave EX (C, C++, GPL-3.0, beta, inactive since 2017)
• Powerslide remake (C++, MIT, beta)
• Primrose (C++, Public domain, mature, inactive since 2009)
• Privateer - Gemini Gold (C++, GPL-2.0, mature, inactive since 2012)
• Procedural Map Generator (C++, MIT, mature, inactive since 2018)
• Project Alice (C, C++, GPL-3.0, mature)
• Project Helena (Pascal, GPL-3.0, beta, inactive since 2018)
• Project-Uranium-Godot (GDScript, MIT, beta)
• Project: Starfighter (C, GPL-3.0, mature)
• Psyco (C, MIT, mature, inactive since 2008)
• PsyDoom (C, C++, GPL-3.0, mature)
• Pushover (C++, C, Lua, GPL-3.0, beta)
• Puzzle Moppet (C++, WTFPL, mature)
• PyChess (Python, TypeScript, GPL-3.0, mature)
• Pygame---Alien-Invasion (Python, GPL-3.0, beta, inactive since 2018)
• PyKaraoke (Python, C, LGPL-2.1, beta, inactive since 2011)
• pyscroll (Python, LGPL-3.0, mature, inactive since 2018)
• PySol Fan Club edition (Python, GPL-3.0, mature)
• PySol (Python, GPL-2.0, mature, inactive since 2004)
• PyTMX (Python, LGPL-3.0, mature)
• Q (Python, GPL-3.0, mature, inactive since 2013)
• QuakeSpasm (C, GPL-2.0, mature)
• Quick Curver (C++, GPL-3.0, mature)
• R.E.L.I.V.E. (C++, MIT, beta)
• Rabbit Escape (Java, GPL-2.0, mature)
• Race Into Space (C, C++, GPL-2.0, mature)
• raylib (C, C++, C#, zlib, mature)
• Recursive Runner (C++, GPL-3.0, beta, inactive since 2017)
• Red Runner (C#, MIT, mature)
• Reliquarium (Ada, GPL-2.0, mature)
• remc2 (C, GPL-3.0, mature)
• Remnants of the Precursors (Java, CC-BY-NC-ND-4.0, mature)
• Ren'Py (C, Python, Ren'Py, LGPL-2.1, mature)
• ReShade (C++, 3-clause BSD, mature)
• ResidualVM (C++, GPL-2.0, beta)
• ReTux (Python, GPL-3.0, mature, inactive since 2018)
• rFXGen (C, zlib, mature)
• Ri-li (C++, GPL-3.0, mature, inactive since 2007)
• Rigs of Rods (C, C++, AngelScript, GPL-3.0, mature)
• Rocks'n'Diamonds (C, GPL-2.0, mature)
• RogueBox Adventures (Python, GPL-3.0, mature)
• Rolisteam (C++, JavaScript, GPL-2.0, mature)
• Rott94 (C, C++, GPL-2.0, beta)
• RPG-X (C, GPL-2.0, mature, inactive since 2015)
• rpgboss (Scala, JavaScript, AGPL-3.0, beta, inactive since 2017)
• rRootage (C, 2-clause BSD, beta, inactive since 2004)
• Ruby-warrior (Ruby, MIT, beta, inactive since 2012)
• RufasCube (Ada, GPL-2.0, mature)
• RufasSlider (C++, GPL-2.0, mature)
• RufasSwap (Ada, GPL-3.0, mature)
• SanAndreasUnity (C#, MIT, mature)
• Sanity Engine (C++, MPL-2.0, beta, inactive since 2021)
• Scorched3D (C++, GPL-2.0, mature, inactive since 2014)
• Scrabble3D (Pascal, GPL-3.0, mature, inactive since 2015)
• Scrolling Game Development Kit 2 (C#, GPL-2.0, mature, inactive since 2017)
• Serious Sam Classic: Vulkan (C, C++, GPL-2.0, mature)
• Serious Sam Classic (C++, GPL-2.0, mature)
• Settlers III remake (Java, MIT, beta)
• Seven Kingdoms: Ancient Adversaries (C++, GPL-2.0, mature)
• sfxr (C++, MIT, mature, inactive since 2012)
• Shattered Pixel Dungeon (Java, GPL-3.0, mature)
• shiromino (C++, MIT, beta)
• Shockolate (C, GPL-3.0, beta)
• Shotgun Debugger (C++, GPL-2.0, mature, inactive since 2005)
• Signus: The Artefact Wars (C++, GPL-2.0, mature)
• Simon Tatham's Portable Puzzle Collection (C, MIT, mature)
• Simple Platformer (Java, MIT, beta, inactive since 2019)
• Simsu (C++, GPL-3.0, mature)
• SLADE (C++, GPL-2.0, mature)
• Slick2D (Java, 3-clause BSD, beta, inactive since 2014)
• SliJewel (Pascal, GPL-3.0, mature, inactive since 2020)
• SliLights (Pascal, GPL-3.0, mature, inactive since 2021)
• SliLumns (Pascal, GPL-3.0, mature, inactive since 2020)
• Slime Volley (C, GPL-3.0, mature, inactive since 2010)
• SliMind (Pascal, GPL-3.0, mature, inactive since 2020)
• SliMine (Pascal, GPL-3.0, mature, inactive since 2020)
• Slingshot (Python, GPL-2.0, beta, inactive since 2007)
• SliPeg (Pascal, GPL-3.0, mature, inactive since 2020)
• SliSame (Pascal, GPL-3.0, mature, inactive since 2020)
• SliSnake (Pascal, GPL-3.0, mature, inactive since 2020)
• SliTris (Pascal, GPL-3.0, mature, inactive since 2020)
• Sludge (C, C++, Objective-C, LGPL-2.1, mature)
• Smash Battle (C++, GPL-2.0, beta, inactive since 2011)
• Snelps (Ruby, LGPL-2.1, beta, inactive since 2012)
• SoftPixel Engine (C++, C, zlib, mature, inactive since 2013)
• SokoSolve (C#, GPL-3.0, mature, inactive since 2009)
• Solar2D (C++, MIT, mature)
• Solaris (TypeScript, JavaScript, GPL-3.0, mature)
• Solarus (C, C++, Lua, GPL-3.0, mature)
• SolarWolf (Python, LGPL-2.1, mature, inactive since 2004)
• Soldat (C, Pascal, MIT, mature)
• Sole Collector (Java, MIT, beta, inactive since 2018)
• Sonic Robo Blast 2 (C, C++, GPL-2.0, mature)
• Space Harrier Clone (C, C++, MIT, beta, inactive since 2018)
• SpaceCadetPinball (C++, MIT, mature)
• SpacePeng! (Java, GPL-3.0, mature, inactive since 2017)
• SpaceTrader for Java (Java, GPL-2.0, mature, inactive since 2010)
• Spartan Engine (C, C++, MIT, beta)
• SpelunkyPSP (C++, Custom, beta)
• Spice Trade (Java, LGPL-2.1, mature, inactive since 2005)
• SRB2Kart (C, C++, GPL-2.0, mature)
• StarBlastrix (C++, GPL-2.0, beta, inactive since 2006)
• Stareater (C#, GPL-3.0, beta)
• Starship Olympics (GDScript, MIT, beta)
• StepMania (C, C++, Lua, MIT, mature)
• SteveTech1 (Java, MIT, beta, inactive since 2019)
• Stockfish (C++, GPL-3.0, mature)
• Stone Kingdoms (Lua, Apache-2.0, beta)
• Storm Engine (C++, GPL-3.0, mature)
• Stratagus (C++, GPL-2.0, mature)
• Stunt Rally (C, C++, GPL-3.0, mature)
• Sudokuki (C, Java, GPL-3.0, mature, inactive since 2016)
• Super Bombinhas (Ruby, GPL-3.0, mature)
• Super Methane Brothers (C++, GPL-2.0, mature, inactive since 2011)
• SuperTux (C++, GPL-3.0, beta)
• SuperTuxKart (C++, C, GPL-3.0, mature)
• SuperTuxParty (GDScript, GPL-3.0, beta)
• Swappy Jigsaw (Pascal, GPL-3.0, mature, inactive since 2019)
• System Syzygy (Rust, GPL-3.0, mature, inactive since 2018)
• T^3 (C++, GPL-2.0, beta, inactive since 2005)
• Tactics Squad (C++, GPL-2.0, beta, inactive since 2007)
• Taisei Project (C, Python, MIT, mature)
• Tangomon (Python, GPL-3.0, mature, inactive since 2017)
• TankistOnline (Python, GPL-3.0, beta)
• Tanks of Freedom (GDScript, MIT, mature)
• Team Tactics (Java, MIT, beta, inactive since 2016)
• Teeworlds (C, C++, zlib, beta)
• TermFrogger (Ada, GPL-3.0, mature)
• TerminalApps (Ada, GPL-3.0, mature)
• TES3MP (C++, GPL-3.0, beta)
• Tetrepetete (C++, GPL-2.0, mature)
• The Battle for Wesnoth (C, C++, Java, Python, Lua, GPL-2.0, mature)
• The Bub's Brothers (Python, C, MIT, mature, inactive since 2013)
• The Butterfly Effect (C++, GPL-2.0, beta)
• The Dark Mod (C++, GPL-3.0, mature)
• The Endless Dungeons (C, CC-BY-NC-SA-2.0, mature, inactive since 2015)
• The Eternity Engine (C, C++, GPL-3.0, mature)
• The Legend of Edgar (C, GPL-2.0, mature)
• The Mana World (C++, Script, C, GPL-2.0, mature)
• The Powder Toy (C++, C, Lua, Python, GPL-3.0, mature)
• The Secret Chronicles of Dr. M. (C++, GPL-3.0, mature)
• The Ur-Quan Masters HD MegaMod (C, GPL-2.0, mature)
• TheXTech (C++, GPL-3.0, mature)
• Thrive (C++, AngelScript, JavaScript, C#, GPL-3.0, beta)
• Thrust (C, GPL-2.0, beta, inactive since 2006)
• TIC-80 (C, Java, C++, Lua, MIT, beta)
• TinTin++ (C, GPL-3.0, mature)
• Toppler (C++, GPL-2.0, mature, inactive since 2012)
• TORCS, The Open Racing Car Simulator (C++, C, PHP, GPL-2.0, mature, inactive since 2016)
• Torque 2D (C++, C, MIT, mature)
• Torque 3D (C++, C, MIT, mature)
• Total Annihilation 3D (C++, C, Lua, GPL-2.0, beta, inactive since 2017)
• Transcend (C++, ?, beta, inactive since 2005)
• TransLines (Pascal, CC0, mature)
• Tremulous (C, GPL-2.0, mature, inactive since 2016)
• Tressette (C++, GPL-2.0, mature, inactive since 2017)
• Trigger Rally (JavaScript, GPL-3.0, beta)
• Trip on the Funny Boat (Python, GPL-2.0, mature, inactive since 2020)
• TROPHY (C++, GPL-2.0, mature, inactive since 2012)
• TTDPatch (Assembly, C, C++, GPL-2.0, mature, inactive since 2013)
• Tumbly Towers (Java, MIT, beta, inactive since 2017)
• Tumiki Fighters (D, C++, 2-clause BSD, mature, inactive since 2005)
• TUSSLE (Python, GPL-3.0, mature, inactive since 2017)
• Tux Builder (GDScript, GPL-3.0, beta)
• Tux Football (C++, GPL-2.0, beta, inactive since 2012)
• Tux Paint (C, C++, GPL-2.0, beta)
• Tuxemon (Python, GPL-3.0, beta)
• UAlbion (C#, MIT, beta)
• Uebergame (TorqueScript, C#, MIT, mature)
• Ultimate Stunts (C++, GPL-2.0, beta, inactive since 2013)
• UltraStar Deluxe (Pascal, GPL-2.0, mature)
• UltraStar Play (C#, MIT, beta)
• Umoria (C, C++, GPL-3.0, mature)
• Unciv (Kotlin, MPL-2.0, mature)
• unitystation (C#, AGPL-3.0, beta)
• Unknown Horizons (Python, GPL-2.0, beta)
• Unvanquished (C, C++, GPL-3.0, mature)
• Vange-rs (Rust, Apache-2.0, beta)
• Vanilla-Conquer (C, C++, Assembly, GPL-3.0, mature)
• VASSAL (Java, LGPL-2.1, mature)
• VCMI (C++, GPL-2.0, mature)
• VDrift (C++, GPL-3.0, mature, inactive since 2014)
• Vectoroids (C, GPL-2.0, mature, inactive since 2002)
• Veraball (GDScript, MIT, beta, inactive since 2016)
• Vib-Ribbon Minus (Python, GPL-3.0, mature, inactive since 2022)
• Violetland (C++, GPL-3.0, beta)
• Visual Pinball (C++, MAME, mature)
• vitetris (C, 2-clause BSD, beta)
• vkQuake (C, C++, GPL-2.0, mature)
• Vocaluxe (C#, C++, GPL-3.0, beta)
• Vorton (C, GPL-3.0, beta, inactive since 2004)
• Voxelands (C++, C, GPL-3.0, beta)
• VQEngine (C++, GPL-3.0, beta)
• Wagic, the Homebrew (C++, C, Objective-C, 3-clause BSD, beta)
• War1gus (Lua, C++, GPL-2.0, mature)
• warcraft-remake (Java, GPL-2.0, beta)
• Waterkube (Go, MIT, mature)
• Which Way Is Up? (Python, GPL-2.0, beta, inactive since 2008)
• Wizardry Legacy (C++, C, Objective-C, GPL-3.0, beta, inactive since 2018)
• World Builder (Visual Basic, GPL-2.0, mature, inactive since 2007)
• WorldForge (C++, GPL-2.0, mature)
• X-Moto (C++, GPL-2.0, mature, inactive since 2014)
• XBlast (C, Java, GPL-2.0, mature, inactive since 2005)
• Xenowar (C, C++, GPL-3.0, mature, inactive since 2014)
• XPilot NG (C, GPL-2.0, mature, inactive since 2010)
• XPilot (C, C++, GPL-2.0, mature, inactive since 2010)
• XSkat (Java, Custom, mature)
• Yamagi Quake II (C, GPL-2.0, mature)
• Yet Another Engine (MoonScript, Java, Lua, MIT, beta, inactive since 2016)
• Yo Frankie! (Blender Script, ?, mature, inactive since 2009)
• YSoccer (Java, GPL-2.0, mature)
• Zandronum (C, Custom, mature, inactive since 2017)
• Zatacka (C, C++, GPL-2.0, beta, inactive since 2007)
• Zaz (C++, GPL-3.0, beta, inactive since 2010)
• ZDoom (C, C++, ZenScript, GPL-3.0, mature)
• Zelda Classic (C, C++, GPL-3.0, mature)
• ZEQ2 Lite (Script, ?, beta)
• Zero Ballistics (C++, MIT, mature, inactive since 2013)
• ZGB (C, Assembly, C++, MIT, mature)
• ZGloom (C++, Custom, mature)
• Zod Engine (C++, ?, mature, inactive since 2018)
• ZQuest Classic (C++, C, GPL-3.0, mature)