Games released under GNU General Public License. The GPL is one of the free software licenses, probably the most common one.
List of GPL games
This is a list of free gPL games:
|0 A.D.||2016-11-10||RTS, Historical|
0 A.D. is a historical 3D real-time strategy game developed by Wildfire Games. It takes place between 500 B.C to 500 A.D. and focuses on economy and war management. 0 A.D. offers a variety of playable civilisations whose characteristics are based on real world history.
8 Kingdoms is a 3D turn-based strategy game based on hexagons in which the player is a king in a fantasy world. It is licensed under the GPL. The media license is unknown. The latest version of the game is 1.10 released on July 22nd, 2007. It is written in the C++ and Tcl programming languages and uses the SDL library.
It was created as a project at the Faculty of Mathematics and physics at the Univerzita Karlova, Prague in 2004.
|ACM||1998||Flight simulation games|
ACM is a multiplayer flight simulator. Several civilian and military aircraft and two scenes are included. The game works without a server, the clients communicate using IEEE Distributed Interactive Simulation protocol (DIS).
|Abe's Amazing Adventure||March 5, 2005||Platform|
Abe's Amazing Adventure is a cross-platform, side scrolling platform game. Similar to various platform games available for the Commodore+4.
|Adanaxis||A single-player 4D first person shooter in outer space|
Adanaxis is a deep space first-person shooter game in four spatial dimensions, written by Andy Southgate. The latest version of the game is 1.2.5. It is written in the C++ programming language using the GLUT library.
|Advanced Strategic Command||2013-12-28||Turn-based strategy|
Advanced Strategic Command is a turn based strategy game in the tradition of Battle Isle.
ASC can be played against the computer or against other players.
Aisleriot is the official patience card game suite for the GNOME desktop. It comes with over 80 games including some of the most popular such as Freecell, Klondike, and Spider. The cards can be themed.
|Alexei: Part IX||June 30, 2010||Adventure|
Alexei: Part IX is a free software graphical adventure game originally released by Piga Software on May 19, 2009. It is the first Piga Software program to use the Gambas Adventure Engine and is also the first Piga Software game released for GNU/Linux and other POSIX systems.
You take the role of Alexei Volkov, master criminal, who is intent on robbing the house of a cruel and ruthless businessman. After gaining access to the main hall with the help of a disgruntled servant, Alexei must search out the mansion and find out the location of the owner's vault. Once this is accomplished he must escape the mansion.
A preview release for the next title in the series, Part XIII, is available from the Piga Software website.
|Annchienta||February 13th, 2009||RPG|
Annchienta is a single-player role-playing game engine written by Jasper Van der Jeugt. It takes place in a 2d, tile-based isometric fantasy world. It is licensed under the GPL.  The latest version of the engine is svn902, released on February 13th, 2009.It is written in the C++ programming language.
|Annex: Conquer the World||2014-10-05||Real-time Strategy, (RTS)||
Annex: Conquer the World is a Megaglest based Real-time Strategy game that brings fast paced combat with a diverse arsenal. Play as one of four available factions: The East Ocean Alliance, the NEO Republic, the Shadow Organization, or the Renegades as you struggle for dominance all over the world, competing for a priceless red mineral. The game will contain over 30 tech trees, different maps, and tileset. The focus of the game is Multiplayer and Single Player skirmishes. Currently there are no plans for campaigns or story mode, however this may change once base game is complete.
A gameplay video on YouTube: Annex: conquer the World 4.0 Republic Mission 6
Antigravitaattori is a multiplayer flying saucer game.
|Apricots||August 13th, 2003||Arcade, Side-scroller|
The latest version of the game was 0.2.6 released on August 13th, 2003.
|Arena of Honour||January 11, 2005||FPS|
Arena of Honour is a multiplayer first-person shooter game written by Artur hallman and Nils Keller. The latest release of the game is version .83 on January 11, 2005.  It is written in the C++ programming language.
Arkhart is a role-playing game engine. It's goal is to provide game designers with the tools necessary to create role-playing games. The game arkhart is developed by the Nekeme Prod. association. Unfortunately the project is at a halt, and EdB is the only active maintainer. Fresh coders are needed. The art (textures,3D,music) is great.
|Armagetron Advanced||2015-02-28||Arcade games|
Armagetron Advanced is a game based on the light cycle scene from the movie Tron. It has extensive multi-player and network support but also supports AI computer players. It is licensed under the GPLv2. The media license is unknown.
The Armagetron Advanced project was registered with SourceForge.net on June 2, 2004,. Although there is a news post of the older Armagetron project dated March 29th, 2000. The project's history goes back to 2000 when it was called 'Walls'.
Asylum is a 2D platform/shooting game designed and written by Andy Southgate in 1994, originally as a commercial project for the Acorn Archimedes. In 2002 Southgate released the source and media into the public domain, and a C port using SDL is now available. Source code is available for both, so both are free software.
Auralquiz is a music guessing game, which plays samples from the user’s sound file library, and lets the user guess (choose or type in) the artist or title from the file tags.
BRIQUOLO is a 3D clone of the game Breakout.
|Balder2D||June 14, 2008|
Balder2D is a game that involves zero-gravity combat. The game is being developed by Bjørn Hansen and Reuben Lord. It is the successor of Balder3D. It is licensed under the GNU General Public License.
|Balder3D||no image||Oct. 26th, 2003||FPS|
|Bastet||May 29th, 2014||Tetris|
Bastet is a tetris clone that stand for Bastard Tetris. It based on Petris, a public domain Tetris clone by Peter Seidler, and developed by Federico Poloni, with a complete rewrite at version 0.43. As of 2015-01-07, the latest version of the game is 0.43.1. It is licensed under GPLv3+. Version 0.37 was the first public release of the game. It is written in C++.
|Battle Tanks||3 Sep 2008||Arcade|
Battle Tanks is an arcade battle game. The game's source code and media are licensed under the GNU General Public License. The latest version of the game is version 0.8.7686 announced on September 3rd, 2008.
|Battles of Antargis||2008-01-01||RTS|
The Battles of Antargis is an RTS set in the medieval ages written by David Kanphausen. It is in an early development stage and is licensed under the GPL. The latest version of the game is 0.2.1.5 released on January 1, 2008.
Berusky is a sokoban style game, published under GNU Public License.
|Billiards||December 6th, 2010|
Bitfighter is an outer-space combat action game. There are difference ways of playing such as space exploration for warfare and construction.
|Black Shades Elite||FPS|
|Blades of Exile||2015-03-15||RPG|
Blades of Exile is an RPG of the Exile series, released in 1997 by Spiderweb Software for the Windows and Macintosh platforms. The game was created after the main trilogy and provides three little scenarios and a scenario editor.
Blasphemer is an FPS project whose initial goal is to serve as a Free data package for engines based on the GPLed Heretic source. The IWAD data is released under a 3-clause BSD license. Its theme is dark fantasy with inspirations from metal music and horror.
G. Wessner aka "Stilgar" and Jute Gyte are the project maintainers.
blinKen is the KDE implementation of the memory game “Simon Says”, similar to its hardware implementation called “Simon”.
It is a part of the KDE Education Project (KDEEdu).
|Blob Wars Episode 1 : Metal Blob Solid||April 17nd, 2011||Platform game|
The latest version of the game is 1.19 released on April 17, 2011.
|Blob Wars Episode 2 : Blob And Conquer||November 4th, 2009||Third-person shooter|
Blob Wars: Blob And Conquer is a 3D action game created by Parallel Realities using the SDL library. The source code of the game is licensed under the GPL. The music and sound effects are not free, and thus have been removed from the Debian package. It is the sequel to Blob Wars Episode 1 : Metal Blob Solid. The latest version of the game is 1.10 released on November 4th, 2009.
|Bloboats||November 23rd, 2010||Racing|
Bloboats is a side-scrolling arcade racing game. The game is similar to X-Moto, but the player controls a jet boat instead of a motorcycle.
|Block Attack - Rise of the Blocks||2016-10-01||Puzzle games|
|Bloodmasters||2007-05-02||Top-down shooter, Arcade|
In February 26th, 2008, the game was released under GPL.
|BomberClone||November 12th, 2010||Arcade games|
|Bos Wars||2013-06-16||Real-time strategy|
Bos Wars (formerly known as Battle of Survival) is a futuristic real-time strategy game. The player has to develop a war economy in order to combat his enemies. In order to be successful the economic needs need to be balanced against building an army. Controlling strategic passages plays an important role.
Boson is a 3D RTS game that uses OpenGL, parts of the KDE libraries and the QT library, that has its code and media licensed under the GPL. Version 0.13, released on October 1, 2006, is the latest version of the game. Its reliance on KDE-only libraries has caused it to be difficult to install for many users and has limited its audience.
|Brain Workshop||October 12th, 2010||Puzzle|
Brain Workshop is a puzzle game designed for the purpose of mental exercise written by Paul Hoskinson.The latest version of the game is 4.8.1 released on October 12,th, 2010. It is written in the Python programming language and is licensed under the GPL.
|British Bingo||2016-06-27||Board game|
British Bingo is a bingo game with 3 by 9 boards. The computer plays opponents who act like elderly people, e. g. by making mistakes and chatting. The number of players and the speed of the game is configurable.
There is no source code repository, but the source code is available for download.
|BuggyGame||March 28th, 2007||Side-scrolling games|
buggyGame is a single-player side-scrolling survival-exploration game where a moon buggy is driven across the surface of Earth and Moon. Written by Chris Hopp during the Ludum Dare competition the game uses the Python programming language and the Pygame library.
The story goes that the player is an astronaut about to explore the moon, but his/her buggy just bluescreened (apparently, it was written using the Evil Empire's code). The player must now manually navigate his/her frail buggy to his/her rocket to win.
|Bullet dodger||Please add the Gameinfo template to the article||Bullet dodger|
bweakfwu is an arcade game by plaimi that mixes Breakout with PONG. It features local multi-player. The current version is alpha-1.
|CAVEZ of PHEAR||2007-02-08||Arcade game, Action game|
CBoard is a text-mode chess game front-end and editor for PGN (Portable Game Notation) files. It uses unicode characters to display chess pieces.
Canta is a karaoke game, currently in development by Andreas Kattner, Stefan Huchler and Felix Rodriguez Lopez, programmed in the Python programming language. As of 2011-06-23, the latest version is 0.2.1 released on 2011-05-22, and is licensed under the GNU General Public License version 3 or later.
|Caph||2010-10-25||Physics simulation, puzzle|
Caph is a physics simulation puzzle game in which the player has to get a red and a green circle together.
Similar to the proprietary Crayon Physics game, Caph has the user draw objects such as ramps, fulcra, levers, and weights to move a ball to the destination using the laws of physics.
|Cheese Boys||April 26th, 2009||RPG|
Cheese Boys is an RPG game written in Python using the Pygame library by Keul (Luca Fabbri). The latest version of the game is 0.2.0 released on April 26th 2009. It is licensed under the GPL.
|Childish Cannoneer||2012-09-15||Artillery and Adventure|
Childish Cannoneer is the first venture of the "Indie Games" project hosted by White Island Software at the Gambas Forum, and participated in by Piga Software through Graham L. Wilson. The aim of the project is to make computer games to show off the Gambas language, with the eventual hope of inclusion in the Humble Indie Bundle for maximum attention. It is to feature a little boy building a makeshift air cannon from spare parts only to terrorize his older sister, and potentially the whole neighbourhood, while evading the wrath of his father. The majority of the game's multimedia are derived from vector graphics taken from OpenClipart and sound effects taken from SoundBible. Contributions to this project, or the creation of other entities for the Indie Games project, are more then welcome.
|Civil||August 9, 2004||TBS, Online|
Civil is a turn-based strategy game mainly focused in the American civil war. The game features networked multi-player and is available for multiple platforms. The development of the game stopped in 2005.
|Codewars||no image||December 31th, 2004||Programming|
Codewars is a programming game written by Timo Hallek and Ronny Peine. The latest version of the game is 0.3.0 RC4 on December 31th, 2004. It is licensed under the GPL. The game was written in the C++ and Perl programming languages.
|Comisat Games Collection||2006-10-10||Snake, Hangman,, Tetris, Board game.|
comisat Games Collection is a collection of free software games written in Gambas. It is one of the first notable Gambas games, with exceptions being code examples such as recreations of Snake, Robotfindskitten, and other small efforts. The game is available in English and Italian.
|Construo||April 10, 2013|
Crack Attack! is a puzzle game by Daniel Nelson and Andrew Sayman which is a clone of Nintendo's Tetris Attack. It is written using the SDL and GLUT library. It is licensed under the GPL. As of 2011-07-26, the latest version of the game is 1.1.14.
|Crimson Fields||March 1, 2009||TBS|
Crimson Fields is a tactical turn-based war game of two opposing sides (Empire of Kand and Free Nexus Army). Facing either the computer or another player, turns are taken to move various military units and attack the opposition. As of 2011-07-26, the latest version of the game is 0.5.3 released on March 1st, 2009..It is licensed under the GPL.
Critterding - Evolving Artificial Life is a life and evolution simulator.
In the default configuration the simulator generates a world with food and critters with random bodies and brains. Critter have sensors such as detection of food touching their head and perform actions such as moving, eating or procreating.
Some randomly created critters will have sufficient properties to sustain a population and evolve.
|Cuyo||October 2014 (as of 2016-07-02)||Tetris-like games|
DNT (formaly known as DccNiTghtmare) is a free 3D single player RPG in a satirical post-apocalyptical world. The game development started in early 2005 and is still active today.
|DQM||no image||2015-04-26||puzzle, Platform|
The idea of the project is around since 2014 and it started that year in C++.
|Deliantra||2012-02-06 (client), 2010-03-31 (server)||MMORPG, RPG|
|Domino On Acid||2009-12-23||Puzzle|
This a colorful variant of dominoes is a simple matching game. The inference rules of natural deduction are the basis for the game. Proof of a tautology are coded as solvable level.
|Eat the Whistle||2008-05-20||Sports|
Eat the Whistle is a 2D football game originally developed by Hurricane Studios. The game was originally developed for the Amiga platform and released under the GPL license version 2 in the year 2002.
Emilia Pinball is a pinball simulator created by Henrik Enqvist. It is licensed under the GPL. An editor for making new tables, Pinedit, is also available. The latest version of the game is 0.3.1 released on December 9, 2003. It was written in the C++ programming language.
Empty Clip is a 2D role-playing game written by Alan Witkowski in 2006. The game is licensed under the GPLv2. The latest version of the game is 1.0.3 released on 7 April, 2008. It is written in the C++ programming language with the SDL library.
Endless Sky is a space exploration, trading and combat game inspired by the old proprietary game Escape Velocity. Players can earn money by trading, carrying passengers, and completing missions. It is also possible to go pirate hunting and participate in a civil-war. Or one can go exploring, leave human space behind, and hope to find some friendly aliens whose culture is more civilized than your own...
Erebus is an classic point-n-click style RPG (role playing game) with 2D graphics. It is available for PCs, smartphones, tablets and handhelds. The current alpha version is already playable.
At this stage there are 3 quests and randomly generated dungeons.
Eskimo-run is a tutorial game that covers most of the basics for making a game in Pygame/Python. The development team is HoleInTheHeadStudios. The game is licensed under the GNU General Public License. The latest version of the game is 0.1 released on June 2nd, 2006.
FLARE is the Free/Libre Action Roleplaying Engine.
In the beginning of the game, the player gets to choose what race the in-game character should have. Each race has different abilities and skills (such as Strength, Health, Magic and Stealth). As the player completes missions and defeat enemies, the character will receive experience-points and level up. Leveling up will allow the player to improve skills and abilities of the character.
By completing missions and looting dead enemies, the player will collect gold. This can be used to purchase new equipment, weapons and armour at different traders.
The game was originally named OSARE, the game moved away from the moniker "open source" as Richard Stallman's precondition for support.
Youtube has a gameplay video here.
|Fall Of Imiryn||Unknown||RPG|
|Fictional Air Combat||March 5th, 2011|
Fictional Air Combat is a flight simulator in the early development stages. It does not to simulate real aircraft or historical war scenarios, only fictional ones, hence the name. The game revolves around fighter aircraft.
FlightGear is a 3D flight simulation game. The entire game is licensed under the GNU General Public License. It is also sold on 3 DVDs. It is written in the C++  and C  programming languages.
The project was started in 1996, with its first release in 1997.
Flukz is a shoot them up game, with levels that can be edited in the same way as a wiki. The latest version of the game is 0.4, released in February 2014.
|Forest patrol||2007-05-27||Category:Real-time strategy|
Forest patrol is a Real-time strategy game, where you control some archers and need to fight enemy archers.
It was created by trailblazer as a warmup for Pyweek 4. The game is licensed under the GPLv2. Forest patrol also used the Directicus, a library also created by trailblazer. The latest version of the game is 1.0 released on May 27, 2007.
|FreeCol||2015-10-17||TBS, Economic simulation|
In February 2007, it received the Sourceforge.net Project of the Month award. 
Dink Smallwood is an adventure/role-playing game, similar to Zelda (2D top view), made by RTsoft. The game features the twisted adventure of young Dink Smallwood, a pig farmer who leaves his town and goes on a quest to save the world.
GNU FreeDink is a new and portable version of the game engine, which runs the original game as well as its D-Mods, with close compatibility, under multiple platforms. It also comes with the DFArc front-end to manage and play Dink Modules (or D-Mods for short): fans-made new add-ons - some of them bigger than the original game. And if you want to make your own adventure, the FreeDinkedit game editor awaits you.
|FreeGish||2010||Platformer, Physics simulation|
Freegish is a physics simulation platformer where you control a blob of tar. It can slick and slide and jump. There is also a multiplayer with modes like sumo wrestling and football.
FreeOrion is a turn-based strategy game of galactic conquest inspired by the Master of Orion games. As is typical for 4X games, players have to explore their surroundings, colonize new planets, manage their economies, research spectacular technologies, build up military might and conquer their neighbors, and ultimately, the entire galaxy. Features specific to FreeOrion are the diverse fantastical species and peculiar history of the game galaxy, the design of new ships with a multitude of hulls and ship parts available after research, and the possibility of technological victory after researching transcendence.
The game's source code is licensed under the GPL v2 and its media under the Creative Commons Attribution-ShareAlike 3.0 license.
|FreeTrain||June 4, 2007||Transport infrastructure game|
FreeTrain is a rail and business simulation computer game, originally created by Kohsuke Kawaguchi and inspired by the A-Train series of games. Both the source code and the graphics are licensed under a combination of the LGPL and the GPL.
|Free Reign||July 29th, 2001||City simulator|
Free Reign is a 3D city simulator written by Alexander Taylor. The latest version of the game is 0.2.1 on July 29th, 2001. The game is written in the C++ programming language. It is licensed under the GPL. It became the inspiration for the OpenCity project.
|Free Tennis||November 21th, 2007||Sport|
Free Tennis is a tennis game written by Maurizio Colucci. It is licensed under the GPLv2. The latest version of Free Tennis is 0.4.8 released on November 21, 2005. It is written in the OCaml programming language.
Freedoom is a project aimed to create a complete and Free Doom IWAD file, which contains all game media. Combined with the GPLed Doom Source, this makes a completely Free (as in speech) game. Freedoom's data is licensed under the Modified BSD License.
There's a subproject FreeDM to create death match maps for doom multiplayer action.
|Freedroid RPG||2015-12-25||RPG, Post-apocalyptic|
GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10.
Some of the activities are game orientated, but nonetheless still educational.
Below you can find a list of categories with some of the activities available in that category.
Currently GCompris offers in excess of 100 activities and more are being developed. GCompris is free software, that means that you can adapt it to your own needs, improve it and, most importantly, share it with children everywhere.
For more specific use, it can be easlily configured to be run in a kiosk mode, so small children cannot accidentally switch to other programs.
On the technical level, GCompris is designed in a way which makes it easy to develop additional activities.
|GL-117||March 12th, 2005||Combat flight simulation|
GL-117 is a combat flight simulator by Thomas Drexl and others. The latest version is 1.3.2.
|GLtron||December 14th, 2003|
|GNU Chess||January 12, 2015||Chess|
GNU Chess is a program that plays the ancient board game, Chess. The latest version of the game is 5.0.7 uploaded on August 7, 2003. It is licensed under the GPLv2. It was one of the first major games to be developed deliberately as free software. On the game Free Software Foundation founder Richard M. Stallman said "We even developed a chess game, GNU Chess, because a complete [free] system needs games too."
|GNU Go||19 February 2009||Board games, Online|
GNU Go is a Go‐playing program. It has a built‐in text based interface (shown in this article image), but it can also be used with graphical frontends like like GoGui, qGo and CGoban 1. As of May 2015 the latest stable version of GNU Go is 3.8 released on 19 February 2009.  It has been licensed under the GPLv3 since 24 October 2007 in CVS.
GNU Go also provided support for online gaming with the GGZ Gaming Zone service. Along with support for GGZ, it played on Go servers like NNGS Go, Legend of Go server hosted in Taiwan, and the WING server hosted in Japan.
|GPL Arcade Volleyball||May 25th, 2006||Arcade, Sport|
GAV: GPL Arcade Volleyball is an SDL remake of the DOS game Arcade Volleyball. The latest version of the game is 0.9.0 on May 25th, 2006. It is written in the C++ programming language. It is licensed under the GPL.
GalaxyMage is a free, open-source tactical RPG. The project began in late 2005(Registered on GNA.org on November 10, 2005) and was founded by Colin McMillen. It is licensed under GPLv2. There were several public releases up until March 2006. The last official release is version 0.3.
The project itself is now considered defunct. The official website is no longer functional. However, people still interested in seeing the game's progress can still access GalaxyMage's Gna project page.
GearHead is a futuristic roguelike game, created by Joseph Hewitt. GearHead 1 is the first roguelike to explore the world of "mecha" (giant robots). Lots of futuristic jobs and skills (mecha pilot, medic, etc.) are available, as well as piloting those mecha. A sequel, creatively named GearHead 2, is in the making. It is licensed under the LGPL.
glParchis is an implementation the popular Parchis game, which is played with a dice and 4 pawns per player. Players have to move their pawns out of their nest, around the whole board, into the destination of the player's color.
Globulation 2 is a RTS game with an unusual gameplay design. The source and media are licensed under the GPL. The latest release of the game is 0.9.4.1 released on March 25th, 2009. It is programmed in C++. It uses the SDL and Boost libraries.
|Gnome Hearts||July 24th, 2008||Card game|
|Go Ollie!||no image||Platformer|
Go Ollie! is a mouse controlled platformer about an earth worm.
|Gusanos||January 31, 2006||Shooter|
Gusanos is a Liero clone that is licensed under the GPL. The latest release of the game is 0.9c on January 31st, 2006.
Hedgewars is a turn-based artillery game featuring fighting hedgehogs. In the spirit of worms, the player has to equip their team of hedgehogs with a choice of numerous weapons in order to combat the enemy. It features an AI player as well as a multiplayer mode.
|Help Hannah's Horse||2008-03-29||Arcade, action, child-oriented|
|Hero of Allacrost||2015-06-30||RPG|
The team's official description of the game is as follows:
Hero of Allacrost is a single player 2D role-playing game that shares similar appearance and gameplay with classic console RPGs. In Hero of Allacrost, the player will explore rich environments, solve challenging dungeon puzzles, and fight strategic battles in an active-time based system.
The game will be released in modules, rather than waiting until the entire game is finished to make a release. Once a new module is released, players can download it and install it, which will make more content available for the player to continue the game from where they last saved. Each Allacrost release will contain a new chapter of the story. Each section is released when it is completely finished.
|Heroes of Wesnoth||2009-09-03||RPG|
Heroes of Wesnoth is a RPG, written by Jon Ander, and set in the universe of Battle for Wesnoth. The last version of the game is 0.1.2, released on September 3th, 2009. It is licensed under the GPLv3.  It is written in the C++ programming language and uses the SDL library.
Hetris: An exploration of literate programming in Haskell is a text mode implementation of Tetris in Haskell, created by Ian Lynagh to demonstrate pretty-printing of a literate Haskell program using Haskell2LaTeX. The document produced by running Haskell2LaTeX then LaTeX is a detailed explanation of the structure and internals of the program.
Hex-a-hop is a hexagonal tiles based puzzle game written by Tom Beaumont. The player controls a girl, who has to destroy all green tiles by jumping on them. In addition to the green tiles there are plenty of other kind of tiles with varying functionality gradually introduced.
|Howitzer Skirmish||Please add the Gameinfo template to the article||
|Infon Battle Arena||2006-10-01||Life simulation, RTS, Programming|
Infon Battle Arena is a real-time multiplayer programming game written by Florian Wesch. You control your creatures using the Lua programming language and let them compete for food and survival against other players. The game is client/server based and is playable over the internet. Players can upload code at any moment to update their code or fix bugs while the game is running in realtime. It is written in the C and Lua programming language using the SDL library. The latest release is 265 released on February 25th, 2008. The media and the source code are both licensed under the GPL.
|Interstate Outlaws||no image||August 15, 2007|
Interstate Outlaws is a vehicle combat game. The latest version of the game is alpha 0.1.3b, released on August 15, 2007. This game is licensed under the GPL. It uses the engine Crystal Space, along with CEL and ODE.
|Irrlamb||2015-10-02||Platform, puzzle, physics simulation|
irrlamb is a platform game, in which the player moves a ball through a 3D terrain. It is being developed by Alan Witkowski and is based on the Irrlicht Engine. irrlamb is licensed under the third version of the GPL. The latest version of the game is 0.1.1 released on January 3rd, 2013.
JSkat is an implementation of the German card game Skat and variations thereof. Players can compete with fellow humans or with the computer. JSkat is implemented in Java.
JSoko is a sokobon style puzzle game. It includes an automatic solver and supports different skins.
KMines is a mostly classical minesweeper puzzle game from the KDEGames division of the KDE Project. There are three preset levels and a custom one. The last one allows the player to adjust width and height of the playing field, and the number of mines.
LBreakout2 is a breakout clone written by Michael Speck and is the successor to LBreakout. It uses the SDL library. The latest version of the game is 2.6.5 on October 17th, 2015. It won the No Starch Press SDL Game Contest. It is licensed under the terms of the GPLv2.
If one had to categorize LambdaRogue to be either a "hack"-game or a "band"-game judging by dungeon generation, it would clearly fall into the "band"-category: Like in Angband and other *bands, standard dungeon levels are randomly generated every time a staircase is used and the player will never encounter the same dungeon level twice.
|LegacyClone||June 11th, 2008||City building game, Economic, Online|
LegacyClone is an online city and economic simulator. It allow players in a persistent world to play as mayors/presidents, build factories and trade goods with other players. The latest release of the game is 0.1.4 on June 11th, 2008. It is written in the Java programming language using the Swing library. The developers are Mr Matt, Daou, and SnapDragon(real names unknown).
|LevelHead||no image||spatial memory puzzle|
levelHead is a spatial memory game which uses the concept of "augmented reality" (or is it "augmented virtuality"?) for its input.
The player holds a solid plastic cube with patterns on its sides before a camera, and controls the game world by tilting the cube.
|Liberal Crime Squad||September 4th, 2012|
Limbs Off is the flagship in plaimi's phun-fysics genre, in which they strive to reproduce complex real life physics, but take certain liberties whenever they feel it will add to the entertainment of the games. Limbs Off specifically is a fighting game that takes place in space. Right now there is only one planet and three characters, but plaimi want to implement several planets as well as inter-planetary travel via cannons, amongst other features.
The characters are "limbless", and consist of a head, body, two feets and hands. As of yet, the only way of "fighting" is running into each other. When the characters hit each other, their mass is decreased up to a point where their body parts are unlinked and the characters effectively become space junk.
Limbs Off does not come with sprites or sounds. Instead, plaimi want to hack the game to load art from a data directory, so that users can install their own art. As of yet it only supports this with character sprites, as the game is at a very early alpha stage. It "went public" on the 24th of September in 2011, on github.
The game runs on relatively modest hardware, and has been compiled and run successfully on most modern UNIX-based operating systems.
|LinCity-NG||November 4th, 2007, January 25th, 2009||City building game|
LinCity-NG is a city building game that is the successor to and fork of LinCity. It is being developed by members of the Happypenguin's Game of the Month project.The stable latest version of the game is 1.1.2 released on November 4, 2007. The latest unstable release is 2.0 released on January 25th, 2009. It used the SDL library.
|Lincity||August 13th, 2004|
Lincity is a city building simulation game. The latest stable version is Version 1.12.1, released on August 13, 2004. It is originally written by I J Peters and licensed under the GPL. It is written in the C programming language.
|Liquid War 6||2015-05-07||Action games|
Liquid War is an action game that involves blob of liquids written by Christian Mauduit. Liquid War 6 is a complete rewrite of Liquid War as a part of the GNU Project. It is licensed under the GPLv2. The latest version of the game is 0.0.9beta released in August 2010.
LordsAWar! is a GPL, turn-based strategy game which is intended to be similar to Warlords II. It was created from the original C++ code base of the old Freelords project. Freelords has subsequently been restarted and has switched to Java. LordsAWar! was written by Ben Asselstine.
|Luola||February 05th, 2006||Arcade game|
|MUSoSu||no image||2008||Sudoku puzzle|
|Mah-Jong||January 6th, 2014||Gambling|
Mah-Jong is a client‐server set of programs for playing Mah-Jong written in the C programming language by Julian Bradfield, in the Chinese Classical style, against other users (locally or over a network), against programmed players, or both.
Though the game is licensed under the GPL, the author requests that any derived works respect the protocol definition, and that incompatible modifications are not distributed under the same name.
|Maniadrive||August 21th, 2006||Racing|
Maniadrive is a racing clone of Trackmania written by an author with the pseudonym xfennec. The latest version of the game is 1.2 released on August 21st, 2006. The code is licensed under the GPL, while some of the media are also under the GPL but some are licensed under CC-BY-SA.
Maniadrive is flagship game of Raydium 3D engine. Game contains level editor and there are community forums where homemade tracks are showed.
|Me and My Shadow||2012-07-26||Platform, Puzzle|
Me and My Shadow is a platform and puzzle game in which the player's shadow plays an important role. The game uses only monochrome colours, fitting the shadow-theme. There is set of tutorial levels which explain the controls, tactics and puzzles elements.
|MegaZeux||Please add the Gameinfo template to the article||MegaZeux is a free software game and game creation software styled after Epic Games' classic title ZZT by Tim Sweeny (later developer of the Unreal Engine).
The program was first started in late 1994 by Gregory Janson, who formed his own but now defunct company, Software Visions. Similar to the original ZZT, MZX was first released as shareware whilst world editor portion of the program was included entirely for free, which allowed third parties to create their own game worlds without needing to register the game.
MZX is officially supported on Windows 95 or later, Linux, Mac OS X, Wii, GP2X, PSP, and the DS. It is also unofficially available for AmigaOS 4, OpenBSD, FreeBSD, OpenSolaris, Haiku and Android.
|Micropolis||2013-12-01||City building game|
Micropolis is a free city building game that is based on the fork of the Unix port of the game SimCity. The game was released under the GPLv3 by the company EA for the OLPC project. It is licensed under the GPLv3.
Neverball is a puzzle game in which the player guides a ball through various obstacle courses. The game, including the media, is licensed under the GPL. It was written by Robert Kooima. As of 2010-02-22, the latest version of the game is 1.6.0. There is a game based on Neverball, called Neverputt.
|Nexuiz||1st October 2009||First person shooter||
|Nikwi||August 23, 2006||Platform|
Nikwi is a 2D platformer where the player's goal is to collect sweets and avoid the traps and enemies.
|O.H.R.RPG.C.E.||April 10th, 2013 (stable), November 17th, 2014 (nightly)||RPG|
O.H.R.RPG.C.E. (Official Hamster Republic Role Playing Game Construction Engine) is a GPL licensed  cross-platform tool with which you can create your own 2D RPG game in a style similar to the classic Final Fantasy games on the NES, SNES and GBA which have so shaped the RPG genre.
|OGS Mahjong||2012-09-23||Puzzle, Boardgame|
OGS Mahjong is a simple mahjong solitaire game with nice 3D graphics and relaxing soundtrack. It has been developed by the Opensource Game Studio and licensed under GPL (version 3). This game requires 3D hardware with support of OpenGL 2 or later.
There are versions for Windows and Linux.
Oolite is a space simulation game inspired by the game Elite. Both the source code and media are licensed under the GPL (version 2 or later). Oolite is programmed in the Objective-C programming language and uses OpenGL. It is available for the Linux, Mac OS X, and Windows operating systems. This game requires 3D hardware acceleration.
|OpenAlchemist||October 12th, 2008||Puzzle|
OpenAlchemist is a fall down block puzzle game. Created in C++. The source code is licensed under the GPLv2++ and the media is licensed under the CC-BY-SA. The latest version of the game is 0.3 released on October 12th, 2008. It uses the ClanLib library. It was made as a clone of a web flash game called NaturalChimie.
|OpenArena||February 20th, 2012||FPS|
OpenArena is a FPS game intended to be a free replacement for the proprietary Quake III Arena. Both the media and the game are licensed under the GPLv2.. The OpenArena project was established on August 19, 2005, the day after the id Tech 3 GPL source code release. A "mission pack" add-on is also planned, to take advantage of the GPL'd Quake III: Team Arena source code.
|OpenCity||October 22nd, 2009||City Simulator|
OpenCity is a 3D city simulator game inspired by Free Reign and written by Duong-Khang Nguyen. It is coded in C++ and uses OpenGL and the SDL. The latest stable release of the game is version 0.0.62 released October 22nd, 2009.  The game is licensed under the GPL.
|OpenMortal||June 15th, 2006||Arcade|
OpenMortal is a fighting game and is a parody of the proprietary game Mortal Kombat. It is licensed under the GPL. The latest version of the game is 0.7.1 released on June 15th, 2006. It is written in the Perl and C++ programming languages.
Instructions are provided on how to create new, realistic characters, so players and their friends could serve as actors for the game. As of 2008-05-30, there were 24 characters at http://openmortal.sourceforge.net/cgi-bin/characters.cgi.
The game is not available in Debian, because its would-be maintainer found that it seemed dead since 2006, and thus he would have to deal with all the potential bug reports.
|Open Quartz||August 1st, 2004|
Open Quartz is an implementation of the GPL Quake source, which includes data also under the GNU General Public License. The latest version of Open Quartz is 2004.08.01.
|Orbit-Hopper||July 19, 2009||Platform, racing|
Orbit-Hopper is a clone of the video game SkyRoads (1993), a 3D racing and platform game. It provides full 3D graphics, a level editor, and multiplayer with split-screen.
|Osgg||January 01 st, 2009||Arcade|
osgg is a Side-scroller/arcade lunar-lander-like game. It is written by Jimmy Christensen and licensed under the GPLv3. The latest version of the game is 0.9 released on January 01st, 2009. It is written in the C++ programming language using the SDL library.
|PSY PONG 3D||no image||January 2nd, 2009.||pong|
PSY PONG 3D is a 3D pong clone.
Pacewar is a simple fighting game between two teams of ships. A team wins when it defeats the opposing team a certain number of times more than it is defeated by the opposing team. As a team gets closer to winning, it loses ships.
Pacman is a pacman clone and very close to the original from Namco. One of the main goals of this clone is a SDL Application with very little use of CPU power. It is licensed under the terms of the GPL version 2 (or any later version).
Palapeli is a jigsaw puzzle game from the KDEGames collection.
Pathogen Warrior is a simple game about matching a pathogen molecular structure on a hexagonal grid. It was originally written for Ludum Dare in 2004. It is GNU GPL v2 licensed. This game does not require 3D hardware acceleration.
|Pathological||July 17, 2003|
Pathological is a puzzle game similar to “Logical” by Rainbow Arts, written by John-Paul Gignac who was inspired by Frozen Bubble. It is written the Python programming language using the Pygame library. It is licensed under the GPL. The latest version of the game is 1.1.3 released on July 17, 2003. This game does not require 3D hardware acceleration.
Someone criticized the game and its inclusion in the "lernu!" website, because it depicts death/murder.
Penguin Command is a game where you control 3 defensive turrets and try to intercept missiles and bombs which threaten your cities. It is GNU GPL licensed. This game does not require 3D hardware acceleration.
Peragro Tempus will be a free multiplayer online role-playing game with a persistent world, which evolves according to nature and its inhabitants (players and NPCs). It has been in development since 2005, and is being built by a dedicated group of volunteers. Peragro Tempus is written in C++.
|Performous||2014-11-01||karaoke, guitar, bass, drums, dance|
The game is written in the C++ programming language and from version 0.3.0 onwards uses OpenGL for graphics.
The main game package does not include any songs, like a player does not include any music, but there are various liberally licensed songs available from the homepage.
|Pillows||October 12th, 2007|
Pingus is a clone of the proprietary puzzle game Lemmings, but makes use of penguins. The game uses SDL, however it once used ClanLib. The entire game, including its media are licensed under the GNU General Public License.
|Pioneer||2016-09-07||Adventure, Space simulation|
Pioneer is a space adventure game set in the far future in our galaxy.
Players may choose their path as traders, explorers, pirates or bounty hunters. There are several factions, each faction having an extensive history and social system described on the Pioneer Wiki.
Once being a clone of Elite II: Frontier, the game is now becoming a new game, still in the spirit of Frontier but with new ships, stations, factions and improvements in the GUI and other areas of the game.
Pioneers is a computer version of the popular board game The Settlers of Catan. The game features multi-player (both online over the internet and hot seat) and single player against AI opponents.
|Plee the Bear||?||Platform game|
The game's source code is licensed under the GNU GPL v2, while the game's media is under the Creative Commons Attribution-ShareAlike license v3.
Powermanga is a 2D shooting arcade game. It is licensed under GPLv3. The latest version of the game is 0.93 released on September 20th, 2014. While beginning as a C++ game, Powermanga now uses C99.
PrBoom is a derivative of many forks and ports of the Doom source code.
It can be used together with the Freedoom data.
PrimeShooter is an abstract browser based shooter game licensed under the GPLv2. The player must shoot falling numbers with their divisors and scores points for clearing prime numbers.
|Project Alexandria||no image|
PyChess is a graphical front-end that works with xboard-compatible engines such as GNU Chess and stockfish, and also comes with its own chess engine if no other is available. PyChess is also capable of online play using the FICS server. Features include hints, different chess variants, and themeable chess pieces.
|PyRacerz||October 16th, 2005||racing|
PyRacerz is a racing game written in the python library with the pygame library. It is licensed under the terms of the GPL v2. The latest version of the game is 0.2 released on October 16th 2005.
|Q||no image||2013-04-16||Educational, Trivia|
q (also known as quizbot) is a simple IRC quizbot by plaimi. It derives questions from a pool, gives out hints, and awards users who answer the questions correctly. All source code is available online, and patches are welcome. The bot is running an "official" instance in the registered channel #quiznode on irc.freenode.net.
Qonk is a simple real-time space conquering game. It is written in C++ and uses the SDL library. It is licensed under the GPL v2. The latest release is version 0.3.1 released on September 14, 2007.
Radakan is a single-player RPG in a unique fantasy setting, driven by a freedom-of-choice environment, with focus on true role-playing instead of combat.
ReTux (stylized as "reTux" in-game) is a 2-D platformer written in Python and utilizing media from SuperTux. It is distributed commercially, but is entirely libre software and libre culture.
Although ReTux re-uses the art assets of SuperTux, no code from SuperTux is used in ReTux. The software portion of ReTux is entirely new, written in Python and based on the SGE Game Engine.
The main game contains 41 levels split into 5 worldmaps. Each level also has a Tux doll which can be found for bonus points and 100% completion.
|Rescue! Max||2013-09-16||Real-time strategy|
Rescue! Max is a real-time strategy game in a space setting. It is a 2D game in which the player controls a space ship to rescue people from planets, making alliances and fight enemies.
Ri-li is an arcade game in which you drive a toy wood train engine across many levels. It is written by Dominique Roux-Serret. The latest version of the game is 2.0.1 on November 1st, 2007. It is written in the C++ programming language, using the SDL library.
Its UI has 19 languages to choose from: Arabic, Breton, Chinese, Dutch, English, Esperanto, French, German, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Slovak, Spanish, Swedish, Turkish.
SABRE is a fighter plane simulator for X11 or svgalib, which takes place in the Korean war. The latest version of the game is 0.2.4b in 1999.
|SDL-Ball||October 1st, 2014||puzzle, side-scroller/arcade|
SDL-Ball is a puzzle and side-scroller/arcade breakout-like game. It is written by Jimmy Christensen and licensed under the GPLv3. The latest version of the game is 1.01 released on January 11th, 2009. It is written in the C++ programming language using the SDL library.
|Scions of Darkness||RTS|
Scrabble3D is computer version of the popular word puzzle board game. In addition to a 3D board, it supports the classic Scrabble and Superscrabble rules.
Scrabble games can be played online against other players or locally against the computer.
|Search and Rescue||2011-08-07||Flight simulation|
Search and Rescue is a 3D helicopter-based air rescue flight simulator game written by WolfPack Entertainment. The latest version of the game is 1.4.0 released on 2011-08-07. It is licensed under GPL.
It has simple, not very realistic, controls, and is mission-based.
|Search for the Red Herring||October 11, 2006||RTS|
|Seven Kingdoms: Ancient Adversaries||2016-09-04|
"Seven Kingdoms: Ancient Adversaries" (usually referred to as "Seven Kingdoms") is a Real-time Strategy game originally developed by Enlight Software in 1997. In 2009 the game was freed and the code and media was licensed under the GNU General Public License. Since then the game has been maintained by volunteer developers and fans.
The command-line version shows a pseudographical board with ASCII art pieces, and asks for a command. It also supports xboard protocol.
The other version (using the same code) is a plug-in for the Eagle Mode ZUI environment. Its UI is isometric, with the pieces reflecting everything around them.
The plug-in says it is called so because it was written by a weak chess player and weak chess programmer. However, John Knight called the AI “rather aggressive” and “rather nasty” in his article.
|Silver Tree||no image||2007-11-17||RPG|
Silver Tree is a 3D role-playing game game created by David White. The latest version of the game is 0.2.1 released on November 17th, 2007 (this version marks the game as complete, although it still requires polishing).
Slime Volley is a 2D side volleyball game. The version 2.2 is a clone of Blobby Volley. With the unstable version 2.3 the game allow to play from 2 to 6 players (AI, or human in both local or network). It was written in the C programming language using the SDL library. It is licensed under the GPLv3.
|Slune||August 8, 2005|
|Snowballs||December 1st, 2009||Online multiplayer|
Snowballz is a RTS game written in Python, PyGlet and Rabbyt by Joey Marshall. The game is entirely licensed under the GNU General Public License. The latest version of the game is 0.9.5.1 released on October 15, 2007.
|Speed Dreams||2014-07-08||racing game|
Project: Starfighter is a 2D shoot'em up game by Stephen Sweeney and Richard Sweeney of Parallel Realities. It can run on Mac and Linux platforms. It relies on the SDL library. It is licensed under the GNU General Public License.
|Stendhal||2016-09-13||MMORPG, Adventure, RPG|
|Stormbaan Coureur||2008-06-11||Physics simulation, Racing game|
|StressFreeZone||Space simulation game, Online|
StressFreeZone is a space simulation focused on cooperative (non-massive)-multiplayer and intuitive gameplay, that is fun to play in short bursts, e.g. on LAN parties. It is written in the C++ and Lua programming language and uses the Lugre engine. The source code is licensed under the GPL (version 3 or later). The media are licensed under various liberal licenses.
The game is incomplete and has not been developed further since October 2008.
SuperTuxKart is a racing game featuring the Linux kernel mascot Tux. It is an enhanced fork of TuxKart. It is written in the C++ programming language. It uses Irrlicht for graphics and OpenAL for sounds.
TORCS (The Open Racing Car Simulator) is a racing and programming game based on RARS. The source code is licensed under the GPL while the data are licensed under the FAL. TORCS itself is forked as Speed Dreams
Tanglet is a game written by Graeme Gott. It is similar to Boggle.
|TecnoballZ||September 30th, 2014||Arcade game|
Tetzle is a jigsaw puzzle game written by Graeme Gott. The game's latest version is 2.0.3 released on September 22nd 2013. It is licensed under the GPL. It is written in the C++ programming language using the Qt library.
|The Battle for Wesnoth||2016-05-21||TBS, Online|
The Battle for Wesnoth, or simply Wesnoth or BfW, is a fantasy themed 2D turn-based strategy game started by David White in June 2003. The game is programmed in C++ and its code and media are licensed under the GPL. This game does not require 3D hardware acceleration.
|The Legend of Edgar||2016-09-28||Platform|
The source is released under the GPL version 2.
|The Mana World||2016-05-12||MMORPG|
The Mana World is a 2D MMORPG in development, licensed entirely under the GPL, including the server software, the server data, and the client data. The server uses a fork of eAthena called tmwAthena.
There are currently plans to switch to the Hercules server which is widely used, and has more features than the current server.
The Mana World developers currently recommend using the ManaPlus client, which is developed separately from the server. The latest client release is ManaPlus version 126.96.36.199. Manaplus is also licensed GPL.
|The Secret Chronicles of Dr. M.||2015-08-17||Platform game|
|Thunder&Lightning||2007-11-10||Flight simulation, RTS|
The latest version is 071111, released on November 10, 2007.
Transcend is an abstract 2D shooter game created by Jason Rohrer. The game's source is licensed mostly under the GPL, but with some public domain code as well. The latest version is 0.3 released on August 30, 2005. Rohrer was motivated to create the game out of frustration with the game industry's lack of creativity.
Its dynamic graphical engine can smoothly morph from one complex shape to another.
|Tremfusion||June 5th, 2009||FPS|
There is a page in the project’s wiki with the goal of summarizing and tracking the licenses of the content used in Tremulous, and then replacing the non-free content with free content.
|Trip on the Funny Boat||March 27, 2007||side-scrolling arcade shooter|
|TripleA||no image||2015-09-03||Board games|
TripleA is an online board game which is similar to Risk, as well as a game engine for turn based strategy games.
|TunnelWars||September 9th, 1998|
TunnelWars is a 2D side scrolling parallax game written in C by Greg Ratajik. The latest release is on September 9, 1998, and is released under GNU General Public License. It was written for the OS/2 operating system.
TuxKart is a racing game featuring the Linux kernel mascot, Tux. It was written by Steve and Oliver Baker. The codebase was eventually forked by the GoTH development team as the basis for SuperTuxKart. It is licensed under the GPL. The latest version of the game is 0.4.0. It uses PLIB, a game development library.
The gameplay is to shoot mathematical expressions with answers.
|Unknown Horizons||2014-12-31||RTS, Economic simulation|
Unknown Horizons, formerly known as OpenAnno, is a real-time strategy game and economic simulation game loosely based on Sunflower's Anno series. The game's source code is licensed under the GPL while its own media is licensed under the CC-BY-SA license and some parts under other DFSG-compatible licenses.
The first public version of Unknown Horizons is version 2008.1 released on October 1st, 2008 when it was called OpenAnno.. This was the last release as OpenAnno before the name was changed to Unknown Horizons.
|VMS Empire||2016-01-05||Turn-based strategy|
VMS Empire is a war simulation between the player and the computer.
Valyria Tear is an single-player 2D role playing game taking place in an medieval-fantasy world.
It is based on a fork of the Hero of Allacrost engine.
|Vega Strike||2012-04-01||Space simulation game|
|Vertigo (game)||2002-04-10||Flight simulator|
|WarMUX||January 21st, 2011||Turn-based strategy|
WarMUX (Wormux until November 21st, 2010) is a Worms-like game that is licensed under the GPL, including its data. The latest version of the game is 11.01 released on January 21st, 2011. This game does not require 3D hardware acceleration.
There is a version in Esperanto called Pendumito.
Someone criticized the game and its inclusion in the "lernu!" website, because it depicts death/murder.
|Which Way Is Up||February 11th, 2008||Puzzle puzzle, platformer|
|Widelands||2016-11-11||RTS, Economic simulation, Online|
Widelands is a real-time strategy game. It uses the Simple DirectMedia Layer and is written in the C++ programming language. The source code and media are licensed under the GNU General Public License. Widelands has single-player campaigns as well as multi-player. It supports online play via their own meta-server as well as LAN and direct IP connection.
The latest release of Widelands is Build19 released on November 11th, 2016.
The game is available in more than twenty languages.
|Word War vi||August 9th, 2009||Side-scrolling, Arcade|
Word War vi is a 2D side-scrolling arcade game in which the player pilots a vi spacecraft to get rid of the memory hogging emacs. It was written by Stephen M Cameron in the C programming language.The sound media are all licensed under the Creative Commons Attribution license. The rest of the game is licensed under the GPLv2. The latest version of the game is 0.26 released on August 9th, 2009. The game represents a video game interpretation of the lighthearted editor war, an important element of hacker culture.
X-Moto is a clone of the motorcycle simulation game Elastomania which in turn was a clone of the commercial DOS game Action SuperCross. Both the code and media are licensed under the GPLv2. The latest version of the game is 0.5.11 released on March 29, 2014.
|XBlast||June 16th, 2006||Multiplayer,Side-scroller,Arcade|
XBlast is a multiplayer only side-scroller, arcade bomberman like game. The latest version of the game is 2.10.4 on June 16th, 2006. It is written in the C programming language. It is licensed under GPLv2.
|Xconq||May 20th, 2004||TBS, Multiplayer|
Xconq is a system for creating strategy games. It have the ability for online play and have built-in support for many types of game. It is licensed under the GPL. The latest version of the game is 7.5pre released on May 20th, 2004.
Xonotic is a GPLv2-licenced first-person shooter, a fork of the GPL-version of Nexuiz. The game runs on the Darkplaces engine, based on Quake 1's engine. Gameplay is also based on Quake, but Xonotic adds some unique touches. The gameplay is very fast-paced, and includes and encourages a form of bunny hopping as well as rocket jumping (in Xonotic "laser jumping" is more common). The art is mostly futuristic, but unofficial maps exist in a variety of styles.
There are 16 different game modes (including the classics: deathmatch, team deathmatch and capture the flag), 16 weapons with secondary fires, 18 official maps (and a lot of unofficial maps), and a complex HUD editor that lets you tailor the HUD to your exact preference.
Zatacka is a remake of a 2D freeware multiplayer game similar to the Tron movie -themed light cycle games and snake games, made by Mage. The latest version is a bugfix release 0.1.8 released on 2007-11-24.
It supports 2 to 6 players on one local machine.
Zatacka X is a clone of a game called Achtung, die Kurve!.
The Zatacka X code is free software, licensed under the GNU General Public License version 3. Ggraphics and audio are licensed under Creative Commons Attribution-ShareAlike.
Zauberer is an FPS project whose initial goal is to serve as a Free data package for engines based on the GPLed Hexen source. The IWAD data is released under a 3-clause BSD license.
Eric Söderberg aka "Cire" is the project maintainer.
Zero-K is a FREE, multiplatform, open-source RTS game. It aims to be dynamic, action-packed and hassle-free, full of clever strategies and constantly moving combat with games lasting an average 20-30 minutes.
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- Copying file at Free Tennis' SVN hosted by sourceforge.net
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- Download page for the Free Tennis project hosted by sourceforge.net
- Freedoom about page
- Freeroid RPG's data copyright file at Debian Packages
- Freeroid RPG's copyright file at Debian packages
- Download page on Frozen Bubble website
- Frozen Bubble's copyright file at Debian Packages
- Announcement of 13.11
- GL-117 Team
- gl-117 license in Debian
- Gltron's copyright at Debian
- Sourceforge.net's download page for the GLtron project
- FTP page for GNU Chess project hosted on GNU.org
- Stallman's Chess quote
- Download page for GNU Go
- Licensing info in COPYING file in GNU Go's CVS hosted by savannah
- Fact Sheet for GNU Go at ggzgamingzone.org
- GAV's sourceforge.net project page
- License page in Galaxymage's SVN repository at Gna!
- license.txt on Github
- Globulation 2's data on Debian's page
- Globulation 2's copyright file at Debian packages
- Package info for glob2 on packages.debian.org
- http://globulation2.org/wiki/Frequently_Asked_Questions#What_additional_software_libraries_do_I_need.3F Globulation FAQs
- Gnome Hearts hompage accessed on April 4th, 2010
- The about page of Hedgewars
- Hedgewars FAQ page
- Tyler Olsen's homepage - Contains information on the start of the Allacrost project.
- Hero of Allacrost FAQ - Has a question on the FAQ
- Allacrost FAQ
- Allacrost sourceforge.net project page
- Jon Ander's userpage on Gitorious
- v0.1.2 announcement
- Announcement of upgrade to GPLv3
- Ohloh.net report on Heroes of Wesnoth
- Hex-a-hop copyright file on Debian's repository
- Hex-a-hop credits page
- Hex-a-hop credits page
- Download page for Infon Battle Arena at code.google.com
- Thread on latest releases
- Readme page
- irrlamb project contact information
- irrlamb license text file on it's Subversion repository
- irrlamb 0.1.1 release announcement
- KMines Handbook on the KDE website
- RPM packages for lbreakout2
- LegacyClone project page on sourceforge.net
- LegacyClone project members list on sourceforge.net
- Old LCS page on Bay 12 Games
- About Limbs Off.
- Demo video.
- Commit:Use sprites for characters not testdisks.
- Commit: Initial commit.
- Limbs Off homepage.
- GoTM thread for LinCity
- Lincity-ng's project page on berlio.de
- Lincity-NG Download and Compilation page
- Sourceforge.net download page for the Lincity project
- Lincity's copyright file at Debian Packages
- Lincity's sourceforge.net project page
- Liquidwar code's copyright file at Debian packages
- Liquidwar data's copyright file at Debian packages
- LordsAWar!'s code copyright file at Debian Packages
- LordsAWar!'s data copyright file at Debian Packages
- Freelords homepage
- Savannah memberlist for the LordsAWar! project
- Introduction at Luola homepage
- MUSoSu's home page
- Discussion of the music licensing
- B Blog post for 1.2
- License in svn
- Credits in svn
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- Meritous README file accessed on October 14th, 2008.
- Meritious source code package accessed on October 14th, 2008.
- Debian: Overview of meritous source package (acc. 2008-11-22)
- Neverball data's copyright file at Debian Packages
- Neverball source's copyright file at Debian packages
- News page
- Nexuiz's data copyright file at Debian packages
- Nexuiz's copyright file at Debian packages
- Nexuiz's music copyright file at Debian packages
- Nikwi homepage
- GPL license O.H.R.RPG.C.E. Wiki article accessed on July 2nd, 2015
- Belzebufo O.H.R.RPG.C.E. Wiki article, accessed on July 2nd, 2015
- The About page on OpenAlchemist website accessed on October 25th, 2008.
- Sourceforge.net download page for the OpenAlchemist project accessed on October 25th, 2008.
- Openarea's copyright file at Debian packages
- Openarena-data's copyright file at Debian packages
- OpenCity files
- OpenCity's copyright file at Debian Packages
- Copyright license on OpenMortal's CVS
- Character Creation HOWTO
- Bruno Kleinert on why he dropped the packaging
- OpenRTS' page
- License is mentioned in the README in osgg's sourceforge.net svn repoistory accessed on Feburary 19th, 2009.
- Membership list for SDL-ball project on sourceforge.net accessed on October 9th, 2009.
- COPYING file in the KDE git repository
- http://esperantino.wordpress.com/2008/09/29/ludoj/#comment-63 (accessed on August 20, 2010)
- The copyright file for the game at Debian's packages list
- The copyright file for the game's media at Debian's packages list
- Contributors list on the project's wiki
- See Plee The Bear's COPYING file
- License section on the game's homepage
- PokerTH's copyright file at Debian Packages
- PokerTH's installation page
- GPLv3 file in Powermanga's Subversion hosted by sourceforge.net
- Sixth Floor Labs' explanation of their business model.
- About page
- In game archive
- q source code on github.
- Qonk COPYING file in its SVN repository
- Release announcement for Qonk on sourceforge.net
- Radakan's team
- Radakan's code license
- Radakan's art license
- Radakan's about page
- SABRE review on Linux Gazette.
- License page in SDL-Ball's sourceforge.net cvs repoistory accessed on October 9th, 2008.
- Membership list for SDL-ball project on sourceforge.net accessed on October 9th, 2008.
- News post on 1.0 accessed on October 9th, 2008.
- Search and Rescue 0.8.2 copyright file in Debian Etch.
- Search and Rescue 0.8.2 data copyright file in Debian Etch.
- The about page of Search and Rescue (dead)
- Pyweek page for Search for the Red Herring
- Homepage of the art assets for the game
- SourceForge homepage for the game
- Sourceforge.net download page for Search for the Red Herring project
- Copyright file
- Copyright file
- Wikipedia article about the game
- John Knight, 1 Feb 2009. New Projects - Fresh from the Labs. Linux Journal. Accessed on 2009-05-25.
- Snowballz's copyright text file at Debian's packages page
- SourceForge: Project of the month, March 2010
- Stormbaan Coureur download page
- “Stormbaan Coureur” changelog.
- Stormbaan Coureur's copyright file in Debian's repositories
- Stormbaan Coureur's data copyright file in Debian's repositories
- COPYING file in trunk
- SuperTux copyright file
- SuperTuxKart is based on TuxKart which is released under GPL3
- SuperTuxKart's SVN COPYING
- SuperTuxKart's history page
- Download page for the SuperTuxKart project hosted by SourceForge.net
- STK FAQ accessed on October 21th, 2008.
- SuperTuxKart's GotM proposal thread accessed on October 21th, 2008.
- About TORCS
- Download page
- GPLv3 file in TecnoballZ's CVS hosted by Google Code Project hosting
- Tetzle page
- Wesnoth copyright file at Debian packages
- COPYING for tmwAthena
- COPYING for the server data
- COPYING for the client data
- Downloads - TheManaWorld
- changelog - ManaPlus wiki
- ManaPlus's source's copyright file at the Debian packages list
- README.md from Secret Maryo Chronicles
- Thunder&Lightning about page
- Thunder and Lighting release announcement for 071031
- Copyright file for Transcend at Debian packages
- Homepage for Transcend
- Blog post on 0.99 release
- Licensing for source code section
- License of all contents (acc. 2009-05-23)
- TunnelWars homepage accessed on October 13th, 2009.
- Copyright info for TunnelWars
- Turious Project Page
- SuperTuxKart's history page
- TuxKart's license page
- The PLIB homepage shows TuxKart as one of the projects that use PLIB
-  The license file in the SVN
- UH's wiki main page reveals the project aim accessed on October 10th, 2008.
- Unknown Horizons license document.
- News post on 2008.1 release
- News post on name change
- LICENSES in git
- Vega Strike data copyright file
- Vega Strike game code copyright file
- "Development has stopped - do not expect further releases." -- http://stjerneskud.info/vertigo/
- Distribution section of Vertigo's online user manual
- Wormux becomes Warmux (November 21st, 2010)
- Copyright text file on WarMUX' SVN repository
- Wormux-data's copyright file at Debian packages
- WarMUX blog post on 11.01
- http://esperantino.wordpress.com/2008/09/29/ludoj/#comment-63 (accessed on August 20, 2010)
- Widelands project page at Launchpad
- Widelands' COPYING file
- Build 19 announcement
- Sourceforge.net project member list for Word War vi
- Word War vi's sourceforge.net project page
- Word War vi copyright file for sounds
- COPYING file for Word War vi
- Sourceforge.net's download page for Word War vi
- X-moto's copyright file at Debian Packages
- X-moto data's copyright file at Debian Packages
- Sourceforge.net download page for the XBlast project
- XBlast Sourceforge.net page
- CVS repoistory's copying page
- Xconq homepage accessed on April 10th, 2010.
- Xonotic homepage.
- Xonotic features.
- project page
- copyright information