Game was licensed under the GPL in 2005. ioQuake 3 continued development to Quake 3, fixing bugs and bringing new improvements to this true classic game.
3D racing cars simulator game using OpenGL.
$ sudo apt-get install supertuxkart
Worms like game with nice graphics:
$ sudo apt-get install wormux
Pingus is a free Lemmings-like game covered under the GNU GPL:
$ sudo apt-get install pingus
Civilisation-like turn based game:
$ sudo apt-get install freeciv
MegaGlest is a free and open source 3D real-time strategy (RTS) game, where you control the armies of one of seven different factions: Tech, Magic, Egyptians, Indians, Norsemen, Persian or Romans. The game is setup in one of 16 naturally looking settings, which -like the unit models- are crafted with great appreciation for detail:
$ sudo apt-get install megaglest
In Warzone 2100 you command the forces of “The Project” in a battle to rebuild the world after mankind has almost been destroyed by nuclear missiles.
The game offers campaign, tutorial, multi-player and single-player skirmish modes.
An extensive tech tree with over 400 different technologies, combined with the unit design system, allows for a wide variety of possible units and tactics:
$ sudo apt-get install warzone2100
GPL-version of TuxRacer:
$ sudo apt-get install extremetuxracer $ etracer
GNU Robbo is a free open source reimplementation of Janusz Pelc's Robbo for the Atari XE/XL which was distributed by LK Avalon in 1989:
$ sudo apt-get install gnurobo
Jump as high as possible:
$ sudo apt-get install gnujump
Sophisticated open source flight simulator framework. FlightGear uses the SimGear simulation engine. Some of the aircraft models available in FlightGear include gliders, helicopters, airliners, fighter jets, etc. Weather effects such as clouds, lightning effects and time of the day is illustrated:
$ sudo apt-get install flightgear fgrun
Shot 0.5.1.1 Kobo Deluxe is an enhanced version of Akira Higuchi's game XKobo for Un*x systems with X11. Kobo Deluxe adds sound, smoother animation, high resolution support, OpenGL acceleration (optional), an intuitive menu driven user interface, joystick support and other features. Recent versions also add a number of alternative skill levels with slightly modernized gameplay:
$ sudo apt-get install kobodeluxe $ kobodl
$ sudo apt-get install blobwars
$ sudo apt-get install nethack $ sudo apt-get install glhack