Keen 1: Marooned on Mars

Keen 1: Marooned on Mars is the first episode in the Invasion of the Vorticons trilogy.

Episode details

	The game How did Keen get into this mess? Which items can be collected? What do the creatures look like? What sort of hazards are lurking to catch the unsuspecting? What do all the levels look like?
	More fun Did you find all the easter eggs? Hopefully you did not have to cheat!
	Behind the scenes Does this episode have any bugs in it? Are there different versions of this episode? How did they develop this episode?
	Beyond the norm Would you like to play some new levels? Or perhaps make your own?

These items are found in this episode.

The following creatures and hazards are found in this episode.

Butler Robot

A nice little Martian robot that has trouble keeping his hat on. He is nice except for the fact that he usually pushes you off a platform to your death.
Fire

Common traps that will burn heroes to death.
Garg

A speedy green monster with two eyes on stalks, commonly found creeping out of tunnels.
Pat Pat

Almost a kind of plant that opens and closes its "mouth" trying to chomp Keen if he comes too close. Similar to a Venus Fly Trap.
Tank Robot

These robots exist to kill any intruders. Even friendly ones.
Vorticon

A Vorticon Guard actually. Also appears as a Vorticon Commander.
Yorp

A harmless, happy alien.

Fans have modified the Commander Keen games to produce new games. A few recent mods are shown here, but there are 180 mods for this episode.