This page is to propose games that are not included, not on the Rejected games list, and apparently are free, but either additional research is needed to confirm that, or someone just needs to create an article.
- 1 Games by last release
- 2 Games from the List of games
- 3 unsorted
- 4 Jigsaw puzzles
- 5 Tetris-like games
- 6 (Probably) Windows-only games
- 7 Non-computer games
- 8 Engines
- 9 Are these games?
- 10 Games by Jason Rohrer (apparently at least all of his games on SF.net are PD)
- 11 Likely sources for more free games
Games by last release
- Warfork (*) - Fork of Warsow, which replaces all nonfree assets with CC0 ones, while the original GPL engine should also remain free. It is currently only accessible on Steam and discussed on Discord, so it needs to be carefully checked (manually compiled etc.) whether the game really is and intends to be 100% libre.
- Shoot Your Goo (*) - Very nice 3D game, found via freegamer article, the repo is MIT, the engine GPL, but despite the license it needs to be checked if there aren't any copyrighted files in the repo (as there is e.g. OpenAL32.dll there).
- Lifish (*) - WIP Bomberman-style game (inspired by BOOM). See https://silverweed.github.io/lifish/ for screenshots and info.
- Squirrel Eat Squirrel (*)
- Flasim (*) - Media license not explicit... ask the author.
- Infinite Tux (*) - Recently posted to Freegamedev.
- Catch Challenger (*) - Readme says everything, including the data, is GPLv3.
- Lix (*)
- Planet Blupi (*) - GitHub everything is GPLv3+.
- Illarion (*) - Great looking MMORPG, FAQ says the game is the game is completely "open source", but needs to be checked (client repo on GH seems to lack a license file).
- Fire and Fondness (*)
- fiTD (*) - MIT, terminal only tower defense.
- Cave Story NX (*) - Are all of the data free?
- Evolution RTS (*) - Based on Spring engine like Zero-K, here claimed to be CC-BY-SA, official site says 100% free gaming.
- Thrive (*) - Spore-like game, GPL + CC-BY-SA (mentioned on this page).
- Dave Gnukem (*) - 1.0 released, looks like a great game. Dual licensed GPL/MIT, data under free CC licenses (see README).
- C-Dogs SDL (*) - Top-down action/shooter game that is a Free SDL port, continuation and expansion of the DOS game C-Dogs by Ronny Wester. (Code: GPL v2, media varying CC0, CC BY and CC BY-SA with CC0 preferred)
- MegaMek (*) - The project is active as of 2018 with the latest release being 0.44.0. Code is GPL, but clarification is needed regarding the data files and it may also be prudent to check for trademark issues. Some user-created add-on data files on the website are unfree.
- Dust Racing 2D (*) - "All image files, except where otherwise noted, are licensed under CC BY-SA 3.0", check the otherwise cases.
- ASCIIpOrtal (*)
- l'Abbaye des Morts - This is a GPL port of a CC-BY licensed game. The original was made in the non-free Gamemaker engine, but the port seems to be entirely libre, built on SDL.
- Wizznic! (*) - puzzle game, code and data are GPLv3 (repo)
- Indie developed games:
Endless Skyarticle created on 2015-11-14
- Nocturne in Yellow - Engine is apparently GPL (https://github.com/marrub--/GLOOME Readme clearly states that), media license seems unclear, I found this (http://forum.zdoom.org/viewtopic.php?f=19&t=49299&start=90#p868865) post which seems to vaguely imply WTFPL. Seems like additional research is needed to confirm it, game seems rather professionally made so probably worth looking into?
- Cubosphere - Claims to be free software when you exit. Development is dead since 2013. License status is unclear, maybe I have overlooked it?
- OpenGOO (*) -- Research media license.
- Data Dealer (*), a game that places you in the position of a privacy-violating, data-grubbing corporation. Requires some research: their Kickstarter page mentions the game is released as CC-BY-SA, but there's no clear release or download with copyright info.
- Sintel The Game (*) -- The GH repo now says the game is MIT, however an archived page says a non-free CC-BY-SA-NC would be used. Needs to be checked.
- Berusky 2 (Bugs Escape 3D) (*)
- Newton Adventure (*)
- Savage Wheels (*)
- Triplane Classic (*): in Debian main
- glPortal (*)
- A Murder In The Public Domain (*)
- GemRB (*)
- Pushover (*)
- Race Into Space (*)
- Terasology (*)
- Aleona's Tales (*)
- 2x0ng (*)
Games from the List of games
- Eye of Doom (*) - From scratch WAD for Doom2 licensed CC-BY, which in combination with Freedoom will most likely create a completely free game. Playability with Freedoom and possible copyright violations (such as too many references to the original Doom) have to be checked.
- A-Blast (*) - VR game playable in browser. Repository is MIT, but double check resource license (e.g. if anything unfree is downloaded at runtime).
- Ascii Patrol (*)
- Three Drunk, Pissed–Off Frogs (*) - Unlicense + CC0.
- Rexuiz (*) - Nexuiz fork, code is GPL, but check the media license.
- Kiki the Nanobot (*) - Licensed as "public domain", it has to be investigated what it actually means though.
- games2D (*) - free SW on GNU Savannah, most media are free CC licenses, however sokoban contains a few copyrighted levels and so can be non-free, which has to be mentioned!
- bsdgames (*) - GH code
- Seed of Andromeda (*) - Both code and data seem to be MIT, but double check.
- Disease Killer Academy (*)
- Argentum Age (*) - GPL + CC BY SA (see the about page and GH repo)
- Red Eclipse apparently was non-free in December 2012 as the article got removed
- OpenLieroX (*) - The code is free and according to freegamedev media are as well, but I wasn't able to confirm this.
- OPMon (*)
- Tuxemon (*) - There seem to be a few unclearly licensed assets (XYG Open Source License v1.1) or even-non free ones (Bitstream Vera License), but most are just CC-BY-SA. The projects seems to put some effort into fixing these, so could potentially be added when resolved.
- Bombermaaan (*)
- BrowserQuest (*)
- HabitRPG (*) - GPLv3 and CC BY-SA
- Castle-Combat (*)
- Childsplay (*)
- Circus Linux! (*)
- Netrek (*)
- Cuby (*)
- Dopewars (*)
- Eagle Mode Netwalk (*)
- Escape (*)
- A gamedev (JS) toolkit http://www.gameclosure.com/blog/?p=177
- a game engine freed https://github.com/Senscape/Dagon
- Arena Live (*) - I have checked nothing, according to a forum post it's based on OpenArena? --AVRS 12:40, 3 August 2009 (UTC)
- Atomorun (*) - GPL, but the source code link is broken. --AVRS 20:19, 27 May 2009 (UTC) Seems to work now, is the media free? GNUbie (talk) 16:43, 3 April 2013 (CEST)
- AudioQuake (*) - GPL code, but requires Quake data files, so not a free game (maybe a free engine). But is it possible to adapt it to OpenQuartz or something else? --AVRS (talk) 21:17, 15 March 2013 (CET)
- Is it completely under GPLv3, including media?
- Media unclear, isn't it?
- Yes, I agree. (I was the one who suggested the game, even though the IP is different.) 18.104.22.168 18:31, 19 September 2009 (UTC)
- M.A.X. Reloaded - http://www.maxthegame.de/ (*) - I have no idea of how much of a clone it is, and if it is playable without non-free data. --AVRS 13:25, 13 April 2009 (UTC) I was told on #maxr that the original is not needed to play and the licensing looks good. GNUbie (talk) 18:40, 17 February 2013 (CET)
- MiniTanques (*) - at Linux Game Tome - Version 0.91 on September 9, 2007 (or version 0.9.7) — not sure the tanque images are legal, they look pretty similar to the Battle City’s ones
- Open World Soccer (*) - Source code is released under the GPL; media content license must be verified
- Pedagogic bundle, educational games (GPL + CC-BY-SA). This looks ready to be added. GNUbie (talk) 18:40, 17 February 2013 (CET)
- Robocode (*) - seems to be under the Eclipse Public License GNUbie (talk) 17:23, 17 February 2013 (CET)
- Search and Rescue II (*) --AVRS 12:46, 13 April 2011 (UTC) Both code and media are licensed under GPLv2. Ready to be added. GNUbie (talk) 12:51, 20 February 2013 (CET)
- Solipsis (*) - a P2P system for a massively shared virtual world
- Ultimate Stunts (*) - http://ultimatestunts.nl/ - supposed to be GPL, but the data/licenses.txt file in the source archive suggests possible copyright violations. --AVRS 21:27, 26 May 2008 (CEST)
- violetland (*) --AVRS 19:10, 28 April 2010 (UTC) This looks good to add. (GPL + CC-BY-SA) GNUbie (talk) 18:54, 17 February 2013 (CET)
- Exodus Defence Google Code- only resources in this repository is available under GPL Homepage - for original version( or playable version)
- Puzzle Moppet Puzzle game. License infos: https://bitbucket.org/Knitter/puzzlemoppet/src/master/
- BlockOut II (in Debian) (*)
- TetriNET-related software (*)
- TETRIS Queen (*) --AVRS 14:46, 22 October 2009 (UTC)
- Yatris (*) --AVRS 15:02, 22 October 2009 (UTC)
- Mr. Flatland — contains the apparently non-free impact.ttf font, and maybe non-free music/sounds, which all seem optional. The rest is simple or replacable. Might try to improve that here. Author's copy at GitHub. --AVRS (talk) 16:43, 26 March 2015 (CET)
(Probably) Windows-only games
- “Free but Shackled”
- VirtualBus (*) is a bus simulator in Delphi, under GPLv2+. Uses the non-free BASS library for audio. --AVRS 12:57, 3 August 2009 (UTC)
- VlakoSim (*), a train simulator made using SDL and OpenGL. Hopefully the licensing includes the media. --AVRS 14:24, 28 February 2009 (UTC)
-  (*) Nine Engine is designed to be a 3D game engine based on Microsoft Xna that allows you to create games for Windows, Xbox and Windows Phones. It have a RTS demo: Isles. the Engine is under a Free Software license Microsoft Public License (Ms-PL) which isn't compatible to GPL, though.
- Dead Meets Lead (*) C# language, engine and media except audio MIT licensed.
- Libre (*), a Trading Card Game
- Domino Knights (*), “an alternative to the numerous battle-focused, collectable card games on the market today.”
- Moonstone RPG - don't know if the one with its own domain is related.
- One Die System (1d6) - german pen-and-paper roleplaying system licensed under the GPL.
- Newton Game Dynamics (*) — released under the zlib license in February 2011
- The Blocky programming language
- Engines developed by id Software
- Godot apparently a fairly complex engine under MIT
- Maratis visual game development engine/editor, zlib/gpl
- PySoy is a 3d cloud game engine for Python. AGPL
Are these games?
Games by Jason Rohrer (apparently at least all of his games on SF.net are PD)
Likely sources for more free games
- Liberated Pixel Cup and other contests
- The games by Insurgent games
- Linux Game Tome (uses the word "free" in the "License" field to denote price, not freedom)
- Games in the FSF's Free Software Directory (note that the FSF doesn't require the media to be free, you always have to check)
- At least some games from http://www.haskell.org/haskellwiki/Applications_and_libraries/Games
- Games in the current Debian testing repository (some games may be in oldstable, stable or unstable but not in testing)
- http://igronomicon.org/grouped#license (in Russian; there may be errors and omissions in the license specification sometimes)
- Free Gamer (covers non-free games sometimes, read both the articles and the comments)
- Games for game consoles, by Damian Yerrick (note: there might be fair use in some games) --AVRS 14:13, 22 October 2009 (UTC)
- List of open-source video games in English Wikipedia (note that some of those games have non-free content!)
- osgameclones -- a big list of open-source games, but media licenses have to be checked!
- Open Source Games -- another list of open source games
- Open Hub -- DB of open-source SW, including games, but licenses (especially media) have to be checked!
- Free Game News -- Is not very strict about media licenses. These need to be checked carefully.