Enter the Level Warp Code (F10 + W) during play to be prompted to enter one of the following numbers to instantly transport to its corresponding level. Levels 6, 8, 11, and 13 have no names, are ...

Drop from a ledge, and just as you begin to drop, shoot straight down. As the falling Keen reaches the shot, he will suddenly stand on it, like its a ledge or elevator, but you will still be ...

The downloadable releases above come packaged with Commander Keen "Invasion of the Vorticons" Episode One: Marooned on Mars. But the engine supports the entire Vorticons trilogy. If you have Episode ...