Tux Math is an openly developed educational math tutorial game for elementary school level children; stars Tux, the Linux Penguin, and players must answer math equations to shoot down comets which are falling towards their cities.
The SL Viewer is an openly developed SIM game; where residents explore, purchase virtual land, open businesses, build real estate, and create scripted objects such as cars, robots, or magic wands.
Gillo is a two-player game in a virtual reality environment; players are cars moving inside a 3D smooth-box shaped playground trying to catch a ball and throw it through a goal in the center of the field.
Nexuiz is an open source multi-player first person shooter game, based on the Quake v1 - Darkplaces engine; presently available for Linux, and Windows users.
Cube is an open source, multi-player/single-player first person shooter game which uses a very small & fast 3D game engine; presently available for Linux users only.
Like Nexuiz, UFO AI (Alien Invasion) is a multi-player/single-player, turn-based style, first person shooter, strategy game; based on Quake2, and available for Windows and Linux users.
