Debian Jr. 3D Games (hardware acceleration required)

 These games all use OpenGL libraries. They will not work without
 decent 3D graphics cards providing hardware-accelerated OpenGL.
 .
 While armagetron and gltron are different interpretations of the
 game depicted in the classic 3D-animated movie "Tron", Tux Racer
 is an all-original made-for-Linux 3D racing game. Unlike the
 standard blood-and-guts fare in the 3D games universe, all of
 these games are suitable for children.