[comment]: # (autogenerated content, do not edit)
# Linux

- **[0 A.D.](../0_ad.md)** (C, C++, JavaScript, GPL-2.0, beta)
- **[1oom](../1oom.md)** (C, GPL-2.0, mature)
- **[3D Pong](../3d_pong.md)** (C, GPL-2.0, beta, inactive since 2004)
- **[4D Maze Game](../4d_maze_game.md)** (Java, Public domain, mature, inactive since 2008)
- **[4D-TRIS](../4d-tris.md)** (C, GPL-2.0, mature, inactive since 2012)
- **[Abe's Amazing Adventure](../abes_amazing_adventure.md)** (C, GPL-2.0, mature, inactive since 2005)
- **[Abuse](../abuse.md)** (C++, Lisp, Public domain, GPL-2.0, WTFPL, mature, inactive since 2011)
- **[AdaGate](../adagate.md)** (Ada, GPL-3.0, mature)
- **[Afternoon Stalker](../afternoon_stalker.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[Airstrike](../airstrike.md)** (C, GPL-2.0, beta, inactive since 2014)
- **[Aisleriot](../aisleriot.md)** (C, Scheme, GPL-3.0, mature)
- **[Aleph One](../aleph_one.md)** (C++, Lua, GPL-3.0, mature)
- **[Alex the Allegator 4](../alex_the_allegator_4.md)** (C, GPL-2.0, mature, inactive since 2003)
- **[alive](../alive.md)** (C++, MIT, beta)
- **[Ambermoon.net](../ambermoonnet.md)** (C#, GPL-3.0, mature)
- **[AndEngine](../andengine.md)** (Java, Apache-2.0, mature, inactive since 2013)
- **[Annex: Conquer the World](../annex_conquer_the_world.md)** (Lua, GPL-3.0, mature, inactive since 2014)
- **[AntiChess](../antichess.md)** (Java, MIT, beta, inactive since 2003)
- **[Ares Dogfighter](../ares_dogfighter.md)** (Java, GPL-3.0, beta, inactive since 2016)
- **[Armory](../armory.md)** (Haxe, Python, zlib, mature)
- **[AssaultCube](../assaultcube.md)** (C, C++, Custom, mature, inactive since 2018)
- **[Athenaeum](../athenaeum.md)** (Python, GPL-3.0, beta)
- **[Atomic Tanks](../atomic_tanks.md)** (C++, C, GPL-2.0, mature, inactive since 2016)
- **[Augustus](../augustus.md)** (C, C++, AGPL-3.0, mature)
- **[Aussenposten](../aussenposten.md)** (JavaScript, MIT, beta, inactive since 2015)
- **[Azimuth](../azimuth.md)** (C, GPL-3.0, mature)
- **[Balder2D](../balder2d.md)** (C++, GPL-2.0, beta, inactive since 2009)
- **[Ball and Paddle](../ball_and_paddle.md)** (C++, Scheme, Shell, GPL-3.0, beta, inactive since 2009)
- **[Batrachians](../batrachians.md)** (C++, GPL-2.0, beta, inactive since 2012)
- **[Battle Tanks](../battle_tanks.md)** (C++, GPL-2.0, mature, inactive since 2009)
- **[Berusky](../berusky.md)** (C++, GPL-3.0, mature)
- **[Between](../between.md)** (PHP, C++, ?, beta, inactive since 2010)
- **[Billiards](../billiards.md)** (Lua, Objective-C, GPL-3.0, beta, inactive since 2012)
- **[Biniax](../biniax.md)** (C, zlib, mature, inactive since 2012)
- **[Bitfighter](../bitfighter.md)** (C, C++, GPL-2.0, mature)
- **[Black Shades](../black_shades.md)** (C, GPL-3.0, mature)
- **[Blackvoxel](../blackvoxel.md)** (C++, GPL-3.0, mature)
- **[Bladecoder Adventure Engine](../bladecoder_adventure_engine.md)** (Java, Apache-2.0, mature)
- **[Blitwizard](../blitwizard.md)** (C, C++, Lua, zlib, beta, inactive since 2015)
- **[Blobby Volley 2](../blobby_volley_2.md)** (C++, GPL-2.0, mature, inactive since 2017)
- **[Block Attack - Rise of the Blocks](../block_attack-rise_of_the_blocks.md)** (C++, GPL-2.0, mature)
- **[BlockOut II](../blockout_ii.md)** (C++, GPL-2.0, mature, inactive since 2014)
- **[BomberClone](../bomberclone.md)** (C, GPL-2.0, beta, inactive since 2010)
- **[Bombermaaan](../bombermaaan.md)** (C++, GPL-3.0, mature, inactive since 2010)
- **[Bombic](../bombic.md)** (C++, Objective-C, GPL-2.0, beta, inactive since 2005)
- **[Brain Workshop](../brain_workshop.md)** (Python, GPL-2.0, mature, inactive since 2011)
- **[Brikx](../brikx.md)** (C++, GPL-2.0, beta, inactive since 2009)
- **[BRIQUOLO](../briquolo.md)** (C++, GPL-3.0, mature, inactive since 2008)
- **[Brogue](../brogue.md)** (C, AGPL-3.0, mature)
- **[Brutal Chess](../brutal_chess.md)** (C++, GPL-2.0, beta, inactive since 2007)
- **[BurgerSpace](../burgerspace.md)** (C++, GPL-2.0, mature, inactive since 2013)
- **[BZFlag](../bzflag.md)** (C++, LGPL-2.1, MPL-2.0, mature)
- **[C-Dogs SDL](../c-dogs_sdl.md)** (C, GPL-2.0, mature)
- **[CaesarIA](../caesaria.md)** (C++, JavaScript, C, GPL-3.0, beta)
- **[Cannon Smash](../cannon_smash.md)** (C++, GPL-2.0, beta, inactive since 2003)
- **[Canta](../canta.md)** (Python, GPL-3.0, beta, inactive since 2011)
- **[Caph](../caph.md)** (C, GPL-3.0, mature, inactive since 2010)
- **[Carnage3D](../carnage3d.md)** (C++, C, MIT, beta)
- **[Cart Life](../cart_life.md)** (AGS Script, Custom, mature, inactive since 2014)
- **[Cartographer](../cartographer.md)** (GDScript, Apache-2.0, mature)
- **[Cataclysm: Dark Days Ahead](../cataclysm_dark_days_ahead.md)** (C++, CC-BY-SA-3.0, mature)
- **[CaveExpress](../caveexpress.md)** (C, JavaScript, GPL-3.0, mature)
- **[CavePacker](../cavepacker.md)** (JavaScript, C, C++, Lua, GPL-3.0, mature)
- **[CETech](../cetech.md)** (C, C++, CC0, beta)
- **[Childsplay](../childsplay.md)** (Python, GPL-3.0, mature)
- **[Chocolate Doom](../chocolate_doom.md)** (C, GPL-2.0, mature)
- **[Chrzaszcz](../chrzaszcz.md)** (C++, GPL-3.0, beta, inactive since 2018)
- **[Chunk Stories](../chunk_stories.md)** (Kotlin, Java, LGPL-3.0, beta)
- **[Citybound](../citybound.md)** (Rust, JavaScript, AGPL-3.0, beta)
- **[ClanLib](../clanlib.md)** (C, C++, zlib, mature)
- **[Classic RBDoom 3 BFG](../classic_rbdoom_3_bfg.md)** (C, C++, GPL-3.0, mature)
- **[ClassiCube](../classicube.md)** (C, 3-clause BSD, mature)
- **[Clonepoint](../clonepoint.md)** (C++, GPL-3.0, beta)
- **[Colditz Escape](../colditz_escape.md)** (C, GPL-3.0, mature)
- **[Commander Genius](../commander_genius.md)** (C, C++, GPL-2.0, mature)
- **[Cosmosmash](../cosmosmash.md)** (C++, GPL-2.0, mature, inactive since 2013)
- **[CoTerminalApps](../coterminalapps.md)** (Ada, GPL-3.0, mature)
- **[Crack Attack!](../crack_attack.md)** (C++, GPL-2.0, mature, inactive since 2005)
- **[Craft](../craft.md)** (C, Python, MIT, mature, inactive since 2017)
- **[CrossUO](../crossuo.md)** (C, C++, GPL-3.0, mature)
- **[Crown](../crown.md)** (C, C++, Vala, MIT, beta)
- **[Crystal Space 3D SDK](../crystal_space_3d_sdk.md)** (C, C++, LGPL-2.1, mature, inactive since 2015)
- **[Cultivation](../cultivation.md)** (C++, Public domain, mature, inactive since 2010)
- **[Curse of War](../curse_of_war.md)** (C, C++, GPL-3.0, mature, inactive since 2014)
- **[curses](../curses.md)** (C, ?, mature, inactive since 2000)
- **[Cuyo](../cuyo.md)** (C++, OCaml, GPL-2.0, mature, inactive since 2014)
- **[Cytadela](../cytadela.md)** (C++, GPL-3.0, beta, inactive since 2013)
- **[D2X-XL](../d2x-xl.md)** (C++, Custom, GPL-2.0, mature, inactive since 2015)
- **[Daggerfall Unity](../daggerfall_unity.md)** (C#, MIT, mature)
- **[DarkPlaces](../darkplaces.md)** (C, GPL-2.0, mature, inactive since 2014)
- **[Dave Gnukem](../dave_gnukem.md)** (C++, GPL-2.0, mature)
- **[Deer Portal](../deer_portal.md)** (C++, zlib, beta)
- **[Defendguin](../defendguin.md)** (C, GPL-2.0, mature, inactive since 2009)
- **[DeSmuME](../desmume.md)** (C, C++, GPL-2.0, mature, inactive since 2015)
- **[Destination Sol](../destination_sol.md)** (Java, Apache-2.0, mature)
- **[dhewm3](../dhewm3.md)** (C, C++, GPL-3.0, mature)
- **[Digital: A Love Story](../digital_a_love_story.md)** (Ren'Py, Python, CC-BY-NC-SA-3.0, mature)
- **[dim3](../dim3.md)** (C, MIT, beta, inactive since 2014)
- **[Domination](../domination.md)** (Java, GPL-3.0, mature)
- **[donut](../donut.md)** (C, C++, GPL-3.0, beta)
- **[Doom Legacy](../doom_legacy.md)** (C++, GPL-2.0, mature)
- **[DOOM](../doom.md)** (C, Custom, mature, inactive since 2012)
- **[Doomsday Engine](../doomsday_engine.md)** (C, C++, GPL-2.0, GPL-3.0, LGPL-3.0, mature)
- **[Dope Wars](../dope_wars.md)** (C, GPL-2.0, mature, inactive since 2013)
- **[DreamChess](../dreamchess.md)** (C, GPL-3.0, beta)
- **[DRL](../drl.md)** (Lua, Pascal, GPL-2.0, mature)
- **[Duck Marines](../duck_marines.md)** (Lua, zlib, mature, inactive since 2016)
- **[Duel Commander](../duel_commander.md)** (C, GPL-3.0, beta, inactive since 2009)
- **[Dungeon](../dungeon.md)** (Java, 3-clause BSD, mature)
- **[Dust Racing 2D](../dust_racing_2d.md)** (C, C++, GPL-3.0, mature)
- **[DwarfCorp](../dwarfcorp.md)** (C#, MIT, mature)
- **[DXX-Rebirth](../dxx-rebirth.md)** (C, C++, Python, GPL-3.0, Custom, mature)
- **[EasyRPG Editor](../easyrpg_editor.md)** (C++, GPL-3.0, mature)
- **[Eat The Whistle](../eat_the_whistle.md)** (C, ?, mature, inactive since 2017)
- **[ECWolf](../ecwolf.md)** (C++, GPL-2.0, LGPL-2.1, zlib, MIT, IJG, Public domain, mature)
- **[EdisonEngine](../edisonengine.md)** (C++, Python, LGPL-3.0, beta)
- **[ElonaFoobar](../elonafoobar.md)** (C++, Lua, MIT, mature)
- **[Elysium Engine](../elysium_engine.md)** (C, GPL-2.0, beta, inactive since 2006)
- **[Emilia Pinball](../emilia_pinball.md)** (C++, GPL-2.0, beta)
- **[Empty Clip](../empty_clip.md)** (C++, GPL-2.0, mature)
- **[EmptyEpsilon](../emptyepsilon.md)** (C, C++, Lua, GPL-2.0, mature)
- **[Enigma](../enigma.md)** (C, C++, GPL-2.0, mature)
- **[Esenthel Engine](../esenthel_engine.md)** (C, C++, Custom, beta)
- **[ET: Legacy](../et_legacy.md)** (C, C++, Lua, GPL-3.0, mature)
- **[ezEngine](../ezengine.md)** (C++, JavaScript, MIT, mature)
- **[ezQuake](../ezquake.md)** (C, C++, GPL-2.0, mature)
- **[F-1 Spirit](../f-1_spirit.md)** (C++, ?, beta, inactive since 2009)
- **[Falcon's Eye](../falcons_eye.md)** (C, NetHack General Public License, mature, inactive since 2004)
- **[Falltergeist](../falltergeist.md)** (C++, GPL-3.0, beta)
- **[Faur](../faur.md)** (C, Python, C++, GPL-3.0, beta)
- **[Fish Fillets - Next Generation](../fish_fillets-next_generation.md)** (C++, GPL-2.0, mature)
- **[Flare](../flare.md)** (C++, Java, Python, GPL-3.0, mature)
- **[flixel-gdx](../flixel-gdx.md)** (Java, 3-clause BSD, beta, inactive since 2017)
- **[FLTK Recycling Game!](../fltk_recycling_game.md)** (C++, LGPL-2.1, mature, inactive since 2014)
- **[Flukz](../flukz.md)** (C++, GPL-2.0, beta, inactive since 2014)
- **[FooBillard++](../foobillard++.md)** (C, GPL-2.0, mature, inactive since 2012)
- **[FooBillard](../foobillard.md)** (C, GPL-2.0, mature, inactive since 2010)
- **[Free Hero Mesh](../free_hero_mesh.md)** (C, JavaScript, Public domain, beta)
- **[Free Mars](../free_mars.md)** (Java, GPL-3.0, mature)
- **[freeablo](../freeablo.md)** (C++, GPL-3.0, beta)
- **[FreeBlocks](../freeblocks.md)** (C, Java, GPL-3.0, beta, inactive since 2015)
- **[Freedoom](../freedoom.md)** (None, Python, None, beta)
- **[Freeminer](../freeminer.md)** (C++, Lua, GPL-3.0, beta)
- **[Freenukum](../freenukum.md)** (C, GPL-3.0, beta, inactive since 2009)
- **[FreeSpace 2 Source Code Project](../freespace_2_source_code_project.md)** (C, C++, Unlicense, mature)
- **[Frets on Fire](../frets_on_fire.md)** (Python, GPL-2.0, mature, inactive since 2008)
- **[Friking Shark](../friking_shark.md)** (C++, C, GPL-3.0, mature)
- **[Frozen Bubble](../frozen_bubble.md)** (Perl, C++, GPL-2.0, mature, inactive since 2012)
- **[FTEQW](../fteqw.md)** (C, GPL-2.0, mature)
- **[Game Editor](../game_editor.md)** (C, C++, GPL-3.0, mature, inactive since 2014)
- **[GameCake](../gamecake.md)** (C, C++, Lua, MIT, mature)
- **[gamekit](../gamekit.md)** (C++, C, zlib, mature, inactive since 2015)
- **[GamePlay](../gameplay3d.md)** (C++, C, Apache-2.0, mature, inactive since 2016)
- **[GBDK](../gbdk.md)** (C, Assembly, C++, MIT, mature)
- **[GCompris](../gcompris.md)** (C, Python, GPL-3.0, mature)
- **[Gem Drop X](../gem_drop_x.md)** (C, GPL-2.0, beta, inactive since 2002)
- **[GeonBit.UI](../geonbitui.md)** (C#, MIT, mature)
- **[Gideros](../gideros.md)** (C, C++, Lua, ?, mature)
- **[Gilbert and the doors](../gilbert_and_the_doors.md)** (C, GPL-3.0, mature, inactive since 2018)
- **[GL-117](../gl-117.md)** (C++, GPL-2.0, mature, inactive since 2005)
- **[glParchis](../glparchis.md)** (Python, GPL-3.0, mature)
- **[GLtron](../gltron.md)** (C, ?, beta, inactive since 2017)
- **[Gnome Chess](../gnome_chess.md)** (Vala, GPL-3.0, mature)
- **[GNU Chess](../gnu_chess.md)** (C++, GPL-3.0, mature, inactive since 2017)
- **[GNU FreeDink](../gnu_freedink.md)** (C, GPL-3.0, mature, inactive since 2012)
- **[GNU Go](../gnu_go.md)** (C, GPL-3.0, mature, inactive since 2011)
- **[Go Ollie!](../go_ollie.md)** (?, GPL-3.0, mature, inactive since 2011)
- **[Golly](../golly.md)** (C++, Java, GPL-2.0, mature)
- **[Gottet](../gottet.md)** (C++, GPL-3.0, mature)
- **[GPL Arcade Volleyball](../gpl_arcade_volleyball.md)** (C++, GPL-2.0, beta, inactive since 2006)
- **[Grail](../grail.md)** (C++, Lua, GPL-3.0, beta, inactive since 2013)
- **[Gravitation](../gravitation.md)** (C++, Public domain, mature, inactive since 2008)
- **[Grobots](../grobots.md)** (C++, GPL-2.0, mature, inactive since 2014)
- **[GUSANOS](../gusanos.md)** (C++, GPL-2.0, beta, inactive since 2006)
- **[Gweled](../gweled.md)** (C, Shell, GPL-2.0, mature)
- **[GZDoom](../gzdoom.md)** (C, C++, GPL-3.0, mature)
- **[Hammer of Thyrion](../hammer_of_thyrion.md)** (C, GPL-2.0, mature)
- **[Hardwar](../hardwar.md)** (C++, GPL-3.0, beta, inactive since 2015)
- **[Harmonist: Dayoriah Clan Infiltration](../harmonist_dayoriah_clan_infiltration.md)** (Go, ISC, beta)
- **[HaxePunk](../haxepunk.md)** (Haxe, MIT, mature)
- **[Head over Heels](../head_over_heels.md)** (C++, GPL-3.0, mature)
- **[Hedgewars](../hedgewars.md)** (Lua, C, C++, Pascal, Haskell, GPL-2.0, mature)
- **[Help Hannah's Horse](../help_hannahs_horse.md)** (C++, GPL-2.0, beta, inactive since 2008)
- **[heXon](../hexon.md)** (C++, GPL-2.0, beta)
- **[Hexoshi](../hexoshi.md)** (Python, GPL-3.0, beta, inactive since 2016)
- **[HHexen](../hhexen.md)** (C, GPL-2.0, mature, inactive since 2013)
- **[HoDoKu](../hodoku.md)** (Java, GPL-3.0, mature, inactive since 2013)
- **[Holtz](../holtz.md)** (C++, GPL-2.0, mature)
- **[Hopson-Arcade](../hopson-arcade.md)** (C++, GPL-3.0, mature)
- **[HyperRogue](../hyperrogue.md)** (C++, GPL-2.0, mature)
- **[I Have No Tomatoes](../i_have_no_tomatoes.md)** (C++, zlib, mature, inactive since 2004)
- **[Ice Breaker](../ice_breaker.md)** (C, GPL-2.0, mature, inactive since 2003)
- **[iiChantra](../iichantra.md)** (C++, MIT, beta, inactive since 2012)
- **[Inexor](../inexor.md)** (C++, JavaScript, zlib, beta, inactive since 2018)
- **[Infinite Mario Bros](../infinite_mario_bros.md)** (Java, 3-clause BSD, mature, inactive since 2010)
- **[Infinite Tux](../infinite_tux.md)** (Java, GPL-3.0, Public domain, mature)
- **[Infon Battle Arena](../infon_battle_arena.md)** (C, Lua, GPL-2.0, beta, inactive since 2012)
- **[INSTEAD](../instead.md)** (C, Lua, Java, MIT, mature)
- **[Intersect](../intersect.md)** (C#, MIT, GPL-2.0, beta)
- **[Intricacy](../intricacy.md)** (Haskell, GPL-3.0, beta)
- **[ioquake3](../ioquake3.md)** (C, GPL-2.0, mature)
- **[iortcw](../iortcw.md)** (C, C++, GPL-3.0, mature)
- **[Jake2](../jake2.md)** (Java, GPL-2.0, beta, inactive since 2006)
- **[Jamp](../jamp.md)** (C++, GPL-3.0, beta, inactive since 2009)
- **[Javelin](../javelin.md)** (Java, GPL-2.0, mature, inactive since 2016)
- **[Jazz² Resurrection](../jazz_resurrection.md)** (C#, JavaScript, GPL-3.0, mature)
- **[JGame](../jgame.md)** (Java, 3-clause BSD, mature, inactive since 2012)
- **[JSkat](../jskat.md)** (Java, GPL-3.0, Apache-2.0, beta)
- **[JSoko](../jsoko.md)** (Java, GPL-3.0, mature)
- **[Jump Don't Die](../jump_dont_die.md)** (Java, GPL-3.0, mature)
- **[KevEdit](../kevedit.md)** (C, GPL-2.0, mature)
- **[Key Runner](../key_runner.md)** (C++, Shell, GPL-3.0, mature, inactive since 2013)
- **[Killer Crates](../killer_crates.md)** (Java, MIT, beta, inactive since 2017)
- **[Kingdoms](../kingdoms.md)** (C++, GPL-3.0, beta, inactive since 2014)
- **[KlayGE](../klayge.md)** (C++, GPL-2.0, mature)
- **[KMines](../kmines.md)** (C++, GPL-2.0, mature)
- **[Kobo Deluxe](../kobo_deluxe.md)** (C++, GPL-2.0, beta, inactive since 2007)
- **[Krank](../krank.md)** (Python, Public domain, beta, inactive since 2008)
- **[Krystal Drop](../krystal_drop.md)** (C++, GPL-2.0, beta, inactive since 2004)
- **[KungFoo Barracuda](../kungfoo_barracuda.md)** (C++, GPL-3.0, mature, inactive since 2016)
- **[L'Abbaye des Morts](../labbaye_des_morts.md)** (C, GPL-3.0, mature, inactive since 2018)
- **[LambdaHack](../lambdahack.md)** (Haskell, 3-clause BSD, beta)
- **[LambdaRogue: The Book of Stars](../lambdarogue_the_book_of_stars.md)** (Pascal, GPL-2.0, mature, inactive since 2012)
- **[LBreakout2](../lbreakout2.md)** (C, GPL-2.0, mature, inactive since 2010)
- **[LBreakoutHD](../lbreakouthd.md)** (C++, GPL-3.0, mature)
- **[LevelHead](../levelhead.md)** (C++, Python, GPL-3.0, mature, inactive since 2009)
- **[LGames](../lgames.md)** (C++, GPL-2.0, mature)
- **[Liberal Crime Squad](../liberal_crime_squad.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[Librelancer](../librelancer.md)** (C, C#, MIT, beta)
- **[LibreMines](../libremines.md)** (C++, GPL-3.0, mature)
- **[LIKO-12](../liko-12.md)** (Lua, Rust, MIT, mature)
- **[LimonEngine](../limonengine.md)** (C, C++, LGPL-3.0, beta)
- **[LionEngine](../lionengine.md)** (Java, GPL-3.0, mature)
- **[Liquid War](../liquid_war.md)** (C, Shell, GPL-3.0, mature, inactive since 2015)
- **[Loon Game](../loon_game.md)** (Java, C#, Apache-2.0, beta)
- **[Love2dCS](../love2dcs.md)** (C#, C++, MIT, mature)
- **[Lugaru](../lugaru.md)** (C++, GPL-2.0, mature)
- **[Luola](../luola.md)** (C, GPL-2.0, mature, inactive since 2005)
- **[LÖVE](../love.md)** (C++, zlib, mature)
- **[Maelstrom](../maelstrom.md)** (C, C++, GPL-2.0, mature, inactive since 2002)
- **[ManaPlus](../manaplus.md)** (C, Shell, GPL-3.0, mature)
- **[ManiaDrive](../maniadrive.md)** (PHP, ?, mature, inactive since 2008)
- **[Marble Marcher](../marble_marcher.md)** (C++, GPL-2.0, mature)
- **[Mari0](../mari0.md)** (Lua, MIT, mature, inactive since 2012)
- **[Maxit](../maxit.md)** (C++, 3-clause BSD, mature, inactive since 2014)
- **[Me and My Shadow](../me_and_my_shadow.md)** (C++, GPL-3.0, beta)
- **[MekWars](../mekwars.md)** (Java, GPL-2.0, mature)
- **[Metaforce](../metaforce.md)** (C, C++, MIT, beta)
- **[Mindustry](../mindustry.md)** (Java, GPL-3.0, mature)
- **[Mines](../mines.md)** (Vala, GPL-3.0, mature)
- **[Minetest](../minetest.md)** (C, C++, Lua, LGPL-2.1, mature)
- **[mini2Dx](../mini2dx.md)** (Java, C#, Apache-2.0, mature)
- **[Minilens](../minilens.md)** (GDScript, GPL-3.0, mature, inactive since 2018)
- **[Mininim](../mininim.md)** (C, GPL-3.0, beta, inactive since 2017)
- **[MiniPacman](../minipacman.md)** (Ada, GPL-3.0, mature)
- **[Moagg2](../moagg2.md)** (Java, GPL-2.0, mature, inactive since 2008)
- **[Monsterz](../monsterz.md)** (Python, WTFPL, beta, inactive since 2007)
- **[Moonbase Assault](../moonbase_assault.md)** (Java, MIT, beta, inactive since 2019)
- **[Mr. Rescue](../mr_rescue.md)** (Lua, zlib, mature, inactive since 2016)
- **[Murder In The Public Domain](../murder_in_the_public_domain.md)** (C++, GPL-3.0, mature, inactive since 2013)
- **[n2048](../n2048.md)** (C, 2-clause BSD, beta, inactive since 2014)
- **[Nazara Engine](../nazara_engine.md)** (C, C++, MIT, beta)
- **[ncurses](../ncurses.md)** (C, MIT, mature)
- **[neoGFX](../neogfx.md)** (C++, GPL-3.0, beta)
- **[NetMauMau](../netmaumau.md)** (C++, LGPL-3.0, mature, inactive since 2015)
- **[Netrek](../netrek.md)** (C, Custom, mature, inactive since 2009)
- **[NFSIISE](../nfsiise.md)** (C, MIT, mature)
- **[Nikwi](../nikwi.md)** (C++, GPL-2.0, beta, inactive since 2012)
- **[No Gravity](../no_gravity.md)** (C, GPL-2.0, mature, inactive since 2006)
- **[Noiz2sa](../noiz2sa.md)** (C, C++, 2-clause BSD, beta, inactive since 2004)
- **[Not Pacman](../not_pacman.md)** (Lua, WTFPL, mature, inactive since 2013)
- **[NOVA PINBALL](../nova_pinball.md)** (Lua, GPL-3.0, beta, inactive since 2017)
- **[NullpoMino](../nullpomino.md)** (Java, 3-clause BSD, mature)
- **[Numpty Physics](../numpty_physics.md)** (C++, GPL-3.0, beta, inactive since 2016)
- **[OGS Mahjong](../ogs_mahjong.md)** (C++, GPL-3.0, mature, inactive since 2016)
- **[OldSkool Gravity Game](../oldskool_gravity_game.md)** (C++, C, GPL-3.0, mature, inactive since 2016)
- **[ONScripter](../onscripter.md)** (C++, GPL-2.0, mature, inactive since 2020)
- **[Oolite](../oolite.md)** (Objective-C, C, JavaScript, GPL-2.0, mature)
- **[Open Fodder](../open_fodder.md)** (C, C++, GPL-3.0, mature)
- **[Open Horizon](../open_horizon.md)** (C++, MIT, beta)
- **[Open Kick-Off](../open_kick-off.md)** (Java, MIT, beta)
- **[Open Quartz](../open_quartz.md)** (C, GPL-2.0, beta, inactive since 2004)
- **[Open Rodent's Revenge](../open_rodents_revenge.md)** (C++, MIT, beta, inactive since 2018)
- **[Open RSC](../open_rsc.md)** (Java, C++, C, Objective-C, GPL-3.0, mature)
- **[Open Yahtzee](../open_yahtzee.md)** (C++, GPL-2.0, mature, inactive since 2016)
- **[OpenAlchemist](../openalchemist.md)** (C++, GPL-2.0, beta, inactive since 2010)
- **[OpenArena](../openarena.md)** (C, GPL-2.0, mature, inactive since 2012)
- **[openblack](../openblack.md)** (C, C++, GPL-3.0, beta)
- **[OpenBlok](../openblok.md)** (C++, GPL-3.0, beta)
- **[OpenBlox](../openblox.md)** (Python, Lua, GPL-3.0, beta, inactive since 2011)
- **[OpenBVE](../openbve.md)** (C#, Public domain, mature)
- **[OpenClonk](../openclonk.md)** (C, C++, ISC, mature)
- **[OpenDiablo2](../opendiablo2.md)** (Go, GPL-3.0, mature)
- **[OpenDungeons](../opendungeons.md)** (C++, GPL-3.0, beta)
- **[OpenHoW](../openhow.md)** (C, C++, GPL-3.0, beta)
- **[OpenHV](../openhv.md)** (C#, Lua, GPL-3.0, beta)
- **[OpenITG](../openitg.md)** (C, C++, MIT, beta, inactive since 2017)
- **[OpenKrush](../openkrush.md)** (C#, GPL-3.0, beta)
- **[OpenLara](../openlara.md)** (C++, C, 2-clause BSD, mature)
- **[OpenMortal](../openmortal.md)** (C++, Perl, GPL-2.0, beta, inactive since 2006)
- **[OpenOMF](../openomf.md)** (C, C++, MIT, beta)
- **[OpenRCT2](../openrct2.md)** (C++, GPL-3.0, mature)
- **[OpenRW](../openrw.md)** (C, C++, GPL-3.0, beta)
- **[OpenSAGE](../opensage.md)** (C#, LGPL-3.0, beta)
- **[OpenSolomonsKey](../opensolomonskey.md)** (C++, Unlicense, beta)
- **[OpenSupaplex](../opensupaplex.md)** (C, GPL-3.0, mature)
- **[OpenTESArena](../opentesarena.md)** (C++, MIT, beta)
- **[OpenVIII](../openviii.md)** (C#, MIT, beta)
- **[OPMon](../opmon.md)** (C++, GPL-3.0, beta)
- **[opsu!](../opsu.md)** (Java, GPL-3.0, mature)
- **[Oreon Engine](../oreon_engine.md)** (Java, GPL-3.0, mature)
- **[ouzel](../ouzel.md)** (C, C++, Objective-C, 2-clause BSD, beta)
- **[Overgod](../overgod.md)** (C, GPL-2.0, mature, inactive since 2005)
- **[Pacewar](../pacewar.md)** (Python, GPL-3.0, mature, inactive since 2017)
- **[Pachi](../pachi.md)** (C, Python, GPL-2.0, mature)
- **[PainTown](../paintown.md)** (C++, Java, Python, 3-clause BSD, mature)
- **[Pang Zero](../pang_zero.md)** (Perl, GPL-2.0, beta, inactive since 2007)
- **[PARSEC47](../parsec47.md)** (D, 2-clause BSD, beta, inactive since 2003)
- **[Pasang Emas](../pasang_emas.md)** (Vala, GPL-3.0, mature)
- **[Passage](../passage.md)** (C++, Public domain, mature, inactive since 2011)
- **[Penguin Command](../penguin_command.md)** (C, GPL-2.0, mature, inactive since 2007)
- **[Pentagram](../pentagram.md)** (C++, GPL-2.0, beta, inactive since 2018)
- **[Performous](../performous.md)** (C, C++, GPL-2.0, mature)
- **[PGU](../pgu.md)** (Python, LGPL-2.1, mature)
- **[Physics Platformer](../physics_platformer.md)** (Java, MIT, beta, inactive since 2019)
- **[Physics Spacewar](../physics_spacewar.md)** (Java, MIT, beta, inactive since 2019)
- **[Pillows](../pillows.md)** (Python, GPL-2.0, beta, inactive since 2007)
- **[Pingus](../pingus.md)** (C++, Scheme, GPL-3.0, mature)
- **[Pink Pony](../pink_pony.md)** (C++, GPL-3.0, mature, inactive since 2017)
- **[Pixel Dungeon](../pixel_dungeon.md)** (Java, GPL-3.0, mature, inactive since 2015)
- **[Pixel Wheels](../pixel_wheels.md)** (Java, GPL-3.0, beta)
- **[PixelLight](../pixellight.md)** (C, C++, MIT, mature, inactive since 2012)
- **[Planet Rider](../planet_rider.md)** (GDScript, GPL-3.0, mature, inactive since 2015)
- **[PLIB](../plib.md)** (C++, LGPL-2.0, mature, inactive since 2012)
- **[PokerTH](../pokerth.md)** (C++, AGPL-3.0, mature, inactive since 2017)
- **[Powermanga](../powermanga.md)** (C, GPL-3.0, beta, inactive since 2015)
- **[Powerslave EX](../powerslave_ex.md)** (C, C++, GPL-3.0, beta, inactive since 2017)
- **[Powerslide remake](../powerslide_remake.md)** (C++, MIT, beta)
- **[Primrose](../primrose.md)** (C++, Public domain, mature, inactive since 2009)
- **[Privateer - Gemini Gold](../privateer-gemini_gold.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[Project-Uranium-Godot](../project-uranium-godot.md)** (GDScript, MIT, beta)
- **[Project: Starfighter](../project_starfighter.md)** (C, GPL-3.0, mature)
- **[Psyco](../psyco.md)** (C, MIT, mature, inactive since 2008)
- **[Puzzle Moppet](../puzzle_moppet.md)** (C++, WTFPL, mature, inactive since 2015)
- **[PyChess](../pychess.md)** (Python, TypeScript, GPL-3.0, mature)
- **[Pygame---Alien-Invasion](../pygame-alien-invasion.md)** (Python, GPL-3.0, beta, inactive since 2018)
- **[PyKaraoke](../pykaraoke.md)** (Python, C, LGPL-2.1, beta, inactive since 2011)
- **[pyscroll](../pyscroll.md)** (Python, LGPL-3.0, mature, inactive since 2018)
- **[pyskool](../pyskool.md)** (Python, GPL-3.0, mature)
- **[PySol](../pysol.md)** (Python, GPL-2.0, mature, inactive since 2004)
- **[PyTMX](../pytmx.md)** (Python, LGPL-3.0, mature)
- **[Q](../q.md)** (Python, GPL-3.0, mature, inactive since 2013)
- **[QuakeSpasm](../quakespasm.md)** (C, GPL-2.0, mature)
- **[Rabbit Escape](../rabbit_escape.md)** (Java, GPL-2.0, mature)
- **[Race Into Space](../race_into_space.md)** (C, C++, GPL-2.0, mature)
- **[raylib](../raylib.md)** (C, C++, C#, zlib, mature)
- **[Recursive Runner](../recursive_runner.md)** (C++, GPL-3.0, beta, inactive since 2017)
- **[Reliquarium](../reliquarium.md)** (Ada, GPL-2.0, mature)
- **[Ren'Py](../renpy.md)** (C, Python, Ren'Py, LGPL-2.1, mature)
- **[ReTux](../retux.md)** (Python, GPL-3.0, mature, inactive since 2018)
- **[Ri-li](../ri-li.md)** (C++, GPL-3.0, mature, inactive since 2007)
- **[Rocks'n'Diamonds](../rocksndiamonds.md)** (C, GPL-2.0, mature)
- **[RogueBox Adventures](../roguebox_adventures.md)** (Python, GPL-3.0, mature, inactive since 2017)
- **[Rolisteam](../rolisteam.md)** (C++, JavaScript, GPL-2.0, mature)
- **[RPG-X](../rpg-x.md)** (C, GPL-2.0, mature, inactive since 2015)
- **[rpgboss](../rpgboss.md)** (Scala, JavaScript, AGPL-3.0, beta, inactive since 2017)
- **[rRootage](../rrootage.md)** (C, 2-clause BSD, beta, inactive since 2004)
- **[Ruby-warrior](../ruby-warrior.md)** (Ruby, MIT, beta, inactive since 2012)
- **[RufasCube](../rufascube.md)** (Ada, GPL-2.0, mature)
- **[RufasSlider](../rufasslider.md)** (C++, GPL-2.0, mature)
- **[RufasSwap](../rufasswap.md)** (Ada, GPL-3.0, mature)
- **[SanAndreasUnity](../sanandreasunity.md)** (C#, MIT, mature)
- **[Scorched3D](../scorched3d.md)** (C++, GPL-2.0, mature, inactive since 2014)
- **[Scrabble3D](../scrabble3d.md)** (Pascal, GPL-3.0, mature, inactive since 2015)
- **[SDL Asylum](../sdl_asylum.md)** (C, GPL-3.0, mature, inactive since 2009)
- **[SDL Bomber](../sdl_bomber.md)** (C, GPL-2.0, mature, inactive since 2012)
- **[SDL Sopwith](../sdl_sopwith.md)** (C, C++, GPL-2.0, mature, inactive since 2014)
- **[SDL-Ball](../sdl-ball.md)** (C++, GPL-3.0, mature, inactive since 2016)
- **[Settlers III remake](../settlers_iii_remake.md)** (Java, MIT, beta)
- **[Seven Kingdoms: Ancient Adversaries](../seven_kingdoms_ancient_adversaries.md)** (C++, GPL-2.0, mature)
- **[Shattered Pixel Dungeon](../shattered_pixel_dungeon.md)** (Java, GPL-3.0, mature)
- **[Shockolate](../shockolate.md)** (C, GPL-3.0, beta)
- **[Shotgun Debugger](../shotgun_debugger.md)** (C++, GPL-2.0, mature, inactive since 2005)
- **[Simon Tatham's Portable Puzzle Collection](../simon_tathams_portable_puzzle_collection.md)** (C, MIT, mature)
- **[Simple Platformer](../simple_platformer.md)** (Java, MIT, beta, inactive since 2019)
- **[Simsu](../simsu.md)** (C++, GPL-3.0, mature)
- **[Slick2D](../slick2d.md)** (Java, 3-clause BSD, beta, inactive since 2014)
- **[Slime Volley](../slime_volley.md)** (C, GPL-3.0, mature, inactive since 2010)
- **[Slingshot](../slingshot.md)** (Python, GPL-2.0, beta, inactive since 2007)
- **[Sludge](../sludge.md)** (C, C++, Objective-C, LGPL-2.1, mature)
- **[Smash Battle](../smash_battle.md)** (C++, GPL-2.0, beta, inactive since 2011)
- **[Snelps](../snelps.md)** (Ruby, LGPL-2.1, beta, inactive since 2012)
- **[SoftPixel Engine](../softpixel_engine.md)** (C++, C, zlib, mature, inactive since 2013)
- **[SokoSolve](../sokosolve.md)** (C#, GPL-3.0, mature, inactive since 2009)
- **[SolarWolf](../solarwolf.md)** (Python, LGPL-2.1, mature, inactive since 2004)
- **[Sole Collector](../sole_collector.md)** (Java, MIT, beta, inactive since 2018)
- **[Sonic Robo Blast 2](../sonic_robo_blast_2.md)** (C, C++, GPL-2.0, mature)
- **[Space Nerds In Space](../space_nerds_in_space.md)** (C, Lua, GPL-2.0, beta)
- **[SpacePeng!](../spacepeng.md)** (Java, GPL-3.0, mature, inactive since 2017)
- **[SpaceTrader for Java](../spacetrader_for_java.md)** (Java, GPL-2.0, mature, inactive since 2010)
- **[SpaceZero](../spacezero.md)** (C, GPL-3.0, beta)
- **[Spice Trade](../spice_trade.md)** (Java, LGPL-2.1, mature, inactive since 2005)
- **[Stareater](../stareater.md)** (C#, GPL-3.0, beta)
- **[SteveTech1](../stevetech1.md)** (Java, MIT, beta, inactive since 2019)
- **[Stratagus](../stratagus.md)** (C++, GPL-2.0, mature)
- **[Stunt Rally](../stunt_rally.md)** (C, C++, GPL-3.0, mature)
- **[Sudokuki](../sudokuki.md)** (C, Java, GPL-3.0, mature, inactive since 2016)
- **[sundog](../sundog.md)** (C, C++, Python, MIT, beta)
- **[Super Bombinhas](../super_bombinhas.md)** (Ruby, GPL-3.0, mature)
- **[Super Methane Brothers](../super_methane_brothers.md)** (C++, GPL-2.0, mature, inactive since 2011)
- **[SuperStarfighter](../superstarfighter.md)** (GDScript, MIT, beta)
- **[SuperTux](../supertux.md)** (C++, GPL-3.0, beta)
- **[SuperTuxKart](../supertuxkart.md)** (C++, C, GPL-3.0, mature)
- **[SuperTuxParty](../supertuxparty.md)** (GDScript, GPL-3.0, beta)
- **[System Syzygy](../system_syzygy.md)** (Rust, GPL-3.0, mature, inactive since 2018)
- **[T^3](../t3.md)** (C++, GPL-2.0, beta, inactive since 2005)
- **[Tactics Squad](../tactics_squad.md)** (C++, GPL-2.0, beta, inactive since 2007)
- **[Taisei Project](../taisei_project.md)** (C, Python, MIT, mature)
- **[Tangomon](../tangomon.md)** (Python, GPL-3.0, mature, inactive since 2017)
- **[TankistOnline](../tankistonline.md)** (Python, GPL-3.0, beta)
- **[Tanks of Freedom](../tanks_of_freedom.md)** (GDScript, MIT, mature)
- **[Team Tactics](../team_tactics.md)** (Java, MIT, beta, inactive since 2016)
- **[Teeworlds](../teeworlds.md)** (C, C++, zlib, beta, inactive since 2013)
- **[Tenes Empanadas Graciela](../tenes_empanadas_graciela.md)** (C, JavaScript, Perl, C++, GPL-2.0, beta, inactive since 2015)
- **[TermFrogger](../termfrogger.md)** (Ada, GPL-3.0, mature)
- **[TerminalApps](../terminalapps.md)** (Ada, GPL-3.0, mature)
- **[TES3MP](../tes3mp.md)** (C++, GPL-3.0, beta)
- **[The Battle for Wesnoth](../the_battle_for_wesnoth.md)** (C, C++, Java, Python, Lua, GPL-2.0, mature)
- **[The Bub's Brothers](../the_bubs_brothers.md)** (Python, C, MIT, mature, inactive since 2013)
- **[The Butterfly Effect](../the_butterfly_effect.md)** (C++, GPL-2.0, beta)
- **[The Dark Mod](../the_dark_mod.md)** (C++, GPL-3.0, mature)
- **[The Eternity Engine](../the_eternity_engine.md)** (C, C++, GPL-3.0, mature)
- **[The Legend of Edgar](../the_legend_of_edgar.md)** (C, GPL-2.0, mature)
- **[The Powder Toy](../the_powder_toy.md)** (C++, C, Lua, Python, GPL-3.0, mature)
- **[The Secret Chronicles of Dr. M.](../the_secret_chronicles_of_dr_m.md)** (C++, GPL-3.0, mature)
- **[Thrive](../thrive.md)** (C++, AngelScript, JavaScript, C#, GPL-3.0, beta)
- **[Thrust](../thrust.md)** (C, GPL-2.0, beta, inactive since 2006)
- **[TinTin++](../tintin++.md)** (C, GPL-3.0, mature)
- **[Toppler](../toppler.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[TORCS, The Open Racing Car Simulator](../torcs_the_open_racing_car_simulator.md)** (C++, C, PHP, GPL-2.0, mature, inactive since 2016)
- **[Torque 2D](../torque_2d.md)** (C++, C, MIT, mature)
- **[Torque 3D](../torque_3d.md)** (C++, C, MIT, mature)
- **[Total Annihilation 3D](../total_annihilation_3d.md)** (C++, C, Lua, GPL-2.0, beta, inactive since 2017)
- **[Trackballs](../trackballs.md)** (C++, Scheme, GPL-2.0, mature)
- **[Transcend](../transcend.md)** (C++, ?, beta, inactive since 2005)
- **[Tremulous](../tremulous.md)** (C, GPL-2.0, mature, inactive since 2016)
- **[Trigger](../trigger.md)** (C++, GPL-2.0, beta)
- **[Trip on the Funny Boat](../trip_on_the_funny_boat.md)** (Python, GPL-2.0, mature, inactive since 2007)
- **[TROPHY](../trophy.md)** (C++, GPL-2.0, mature, inactive since 2012)
- **[Tumbly Towers](../tumbly_towers.md)** (Java, MIT, beta, inactive since 2017)
- **[Tumiki Fighters](../tumiki_fighters.md)** (D, C++, 2-clause BSD, mature, inactive since 2005)
- **[TUSSLE](../tussle.md)** (Python, GPL-3.0, mature, inactive since 2017)
- **[Tux Builder](../tux_builder.md)** (GDScript, GPL-3.0, beta)
- **[Tux Football](../tux_football.md)** (C++, GPL-2.0, beta, inactive since 2012)
- **[Tux of Math Command](../tux_of_math_command.md)** (C, GPL-3.0, mature, inactive since 2011)
- **[Tux Paint](../tux_paint.md)** (C, C++, GPL-2.0, beta)
- **[Tuxemon](../tuxemon.md)** (Python, GPL-3.0, beta)
- **[TuxKart](../tuxkart.md)** (C++, GPL-2.0, beta, inactive since 2004)
- **[Ultimate Stunts](../ultimate_stunts.md)** (C++, GPL-2.0, beta, inactive since 2013)
- **[UltraStar Deluxe](../ultrastar_deluxe.md)** (Pascal, GPL-2.0, mature)
- **[UltraStar Play](../ultrastar_play.md)** (C#, MIT, beta)
- **[Umoria](../umoria.md)** (C, C++, GPL-3.0, mature)
- **[UnCiv](../unciv.md)** (Kotlin, MPL-2.0, beta)
- **[unitystation](../unitystation.md)** (C#, AGPL-3.0, beta)
- **[Unvanquished](../unvanquished.md)** (C, C++, GPL-3.0, mature)
- **[Vamos](../vamos.md)** (C++, Python, GPL-3.0, beta, inactive since 2014)
- **[Vanilla-Conquer](../vanilla-conquer.md)** (C, C++, Assembly, GPL-3.0, mature)
- **[VASSAL](../vassal.md)** (Java, LGPL-2.1, mature)
- **[VDrift](../vdrift.md)** (C++, GPL-3.0, mature, inactive since 2014)
- **[Vectoroids](../vectoroids.md)** (C, GPL-2.0, mature, inactive since 2002)
- **[Veraball](../veraball.md)** (GDScript, MIT, beta, inactive since 2016)
- **[Vertigo](../vertigo.md)** (C, GPL-2.0, beta, inactive since 2002)
- **[Violetland](../violetland.md)** (C++, GPL-3.0, beta)
- **[vitetris](../vitetris.md)** (C, 2-clause BSD, beta)
- **[vkQuake](../vkquake.md)** (C, C++, GPL-2.0, mature)
- **[Vocaluxe](../vocaluxe.md)** (C#, C++, GPL-3.0, beta, inactive since 2018)
- **[Vorton](../vorton.md)** (C, GPL-3.0, beta, inactive since 2004)
- **[Voxelands](../voxelands.md)** (C++, C, GPL-3.0, beta)
- **[Wagic, the Homebrew](../wagic_the_homebrew.md)** (C++, C, Objective-C, 3-clause BSD, beta)
- **[warcraft-remake](../warcraft-remake.md)** (Java, GPL-2.0, beta)
- **[Which Way Is Up?](../which_way_is_up.md)** (Python, GPL-2.0, beta, inactive since 2008)
- **[Wizardry Legacy](../wizardry_legacy.md)** (C++, C, Objective-C, GPL-3.0, beta, inactive since 2018)
- **[Word War vi](../word_war_vi.md)** (C, GPL-2.0, mature)
- **[X-Moto](../x-moto.md)** (C++, GPL-2.0, mature, inactive since 2014)
- **[xBaK](../xbak.md)** (C++, GPL-3.0, beta, inactive since 2013)
- **[XBill](../xbill.md)** (C, Shell, GPL-2.0, mature, inactive since 2001)
- **[XBlast](../xblast.md)** (C, Java, GPL-2.0, mature, inactive since 2005)
- **[xdigger](../xdigger.md)** (C, GPL-2.0, mature, inactive since 1999)
- **[XorCurses](../xorcurses.md)** (C, GPL-3.0, beta, inactive since 2012)
- **[XPilot NG](../xpilot_ng.md)** (C, GPL-2.0, mature, inactive since 2010)
- **[XPilot](../xpilot.md)** (C, C++, GPL-2.0, mature, inactive since 2010)
- **[XSkat](../xskat.md)** (Java, Custom, mature)
- **[Yamagi Quake II](../yamagi_quake_ii.md)** (C, GPL-2.0, mature)
- **[Yet Another Engine](../yet_another_engine.md)** (MoonScript, Java, Lua, MIT, beta, inactive since 2016)
- **[Yo Frankie!](../yo_frankie.md)** (Blender Script, ?, mature, inactive since 2009)
- **[YSoccer](../ysoccer.md)** (Java, GPL-2.0, mature)
- **[Zandronum](../zandronum.md)** (C, Custom, mature, inactive since 2017)
- **[Zatacka](../zatacka.md)** (C, C++, GPL-2.0, beta, inactive since 2007)
- **[Zaz](../zaz.md)** (C++, GPL-3.0, beta, inactive since 2010)
- **[ZDoom](../zdoom.md)** (C, C++, ZenScript, GPL-3.0, mature)
- **[Zod Engine](../zod_engine.md)** (C++, ?, mature, inactive since 2018)
- **[Zugspiel](../zugspiel.md)** (C++, GPL-2.0, beta, inactive since 2004)