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.