Commander Genius aka CloneKeenPlus is an engine which interprets Commander Keen 1-3 (Vorticons Series). Of course you would require the original dataflies of the game, which are not supplied with this pack.

The package obviously had a re-upload, version number stays as is.

http://dl.openhandhelds.org/cgi-bin/pandora.cgi?0,0,0,0,35,50