BeOS games

1997 first-person shooter video game by id Software

SuperTux is a free and open-source 2D side scrolling platform video game inspired by Nintendo's Super Mario Bros. series. Players control Tux, the mascot of the Linux kernel, through a variety of levels and worlds to rescue his girlfriend, Penny, from the evil Nolok. Originally developed for Linux operating systems, the game has since been ported to Windows, Mac OSX, Steam, and other platforms.

2000 video game

Lincity is a free and open-source construction and management simulation game, which puts the player in control of managing a city's socio-economy, similar in concept to SimCity. The player can develop a city by buying appropriate buildings, services and infrastructure. Its name is both a Linux reference and a play on the title of the original city-building game, SimCity, and it was released under the GNU General Public License v2.

1999 video game

roguelike video game, open source, first release version in 1990, community driven development up to now

1998 video game

1996 run and gun video game

TetriNET is a multiplayer online Tetris game for up to six people that supports team play.

computer math learning game

1998 video game

1998 point-and-click adventure game

C-Dogs, the sequel to Cyberdogs, is a shoot 'em up video game where players work cooperatively during missions and against each other in "dogfight" deathmatch mode.