optgeo is a program to plot the movement of rays through an optic equipment. Many pieces, like lenses, mirrors, curved mirrors can be assembled.

Njam is a pacman-like game with many features, including networked multiplayer mode. It is available on many platforms.

KMines is a game where the player finds hidden mines without setting them off.

Therion is cave-survey drawing and modelling software. This package contains the 3D model viewer for therion models produced by version 0.4 or later. It can also display Survex .3d and Compass .plt files.

It features multiplayer (on the same computer), tournaments, high scores, replays, 6 tracks (really 12, because each track can be used Normal or Reverse), 9 cars, a basic robot player, 3 different levels of difficulty, and a music player (it can play the .ogg files locating in the musics directory).