CloneKeen is an open-source clone of id's classic DOS game Commander Keen: Invasion of the Vorticons. CloneKeen runs under many platforms including Linux & win32. There are some improvements over the original such as 2-player support.
Commander Genius aka CloneKeenPlus is an engine which interprets Commander Keen 1-3 (Vorticons Series). As fans and developers we try to implement new features, improve the game play and give the feeling, you are playing the original game.
The Commander Keen data files and either the CloneKeen or the Commander Genius engine