This is a small collection of games for GNU/Linux that I play in my free time.
Chaos Esque Anthology - A first-person shooter forked of Xonotic, it includes new features such as extended number of weapons (including medieval weapons), new maps, vehicles, spell casting, monsters, player characters, textures and game modes.
Freedoom - A project aimed to create a complete and free Doom IWAD file, which contains all game media. Combined with the GPLed Doom Source (such as PrBoom or GZDoom), this makes a completely Free game. Freedoom's data is licensed under the Modified BSD License.
Domination - A game based on the board game risk. It is written in the Java programming language by Yura Mamyrin and licensed under the GPL.
GNU Chess A program that plays the ancient board game, Chess. 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 libre system needs games too."
GNU Go A Go‐playing program. It has a built‐in text based interface, but it can also be used with graphical frontends like like GoGui, qGo and CGoban. 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.
TripleA - An online board game which is similar to Risk, as well as a game engine for turn based strategy games.
0 A.D. - A historical Real Time Strategy game currently under development by Wildfire Games, a global group of volunteer game developers. Lead a civilization set in the imaginary year of 0 A.D., develop a thriving city, raise a mighty army and contend with rivals for hegemony of the world. History is yours for the taking!
Curse of War - A real time strategy game which focuses on high-level strategic planning such as building infrastructure. While it does not reference World War I or II, the game mechanics resembles those types of war. Curse of War is a text-mode made using the ncurses library for Linux. It has both single and multiplayer modes.
Endless Sky - A 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters. Earn money by carrying passengers or cargo, escorting convoys, bounty hunting, or plundering and capturing enemy ships. Take sides in a civil war, or ignore the story line and just enjoy exploring the galaxy and blasting pirates.
Freeciv - is a 2D turn-based strategy game, inspired by Sid Meier's Civilization series, where players control an empire to "eXplore, eXpand, eXploit, and eXterminate" (4X). Both code and media are licensed under the GNU General Public License.
FreeOrion - 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.
VMS Empire - A war simulation between the player and the computer. VMS Empire uses characters to represent the game world: It consists of sea (.), land (+), uncontrolled cities (*), computer-controlled cities (X), and cities that the player controls (O). The game starts with one city per party. Cities produce pieces which can be used to expand the empire.