Episode Y

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Episode Y
Title KeenY.png
Mod-ingame-Episode Y.png
Modded episodeKeen 1
ProtagonistCommander Keen
Release date
Latest update2003-06-19
HomepageGrelphy's Commander Keen page
Number of levels21
Secret levels1
New gameplay?No
New graphics?Yes
New levels?Yes
New sounds?No
New music?No
(4 votes)
Other mods in this seriesEpisode X, Episode Z, Episode Null

Keen Y: Extra Dark is a Keen 1 mod created by Grelphy, and is the sequel to Episode X and is followed by Episode Z.

Technical Information

  • Graphics: custom graphics by Grelphy
  • Levels: 22
  • Tools used (incomplete list): unknown


Commander Keen flies through the wormhole carefully scanning space for Mortimer Mcmire's second fleet. He sees a giant space station in the distance...

Later, landing at the station, Keen carefully creeps through the ship. However, Mort is taking no chances with his universe destruction device, and Keen is detected. Huge and dangerous tank robots chase him through the ship, and eventually he has to teleport through a one-way teleport, leaving behind his pogo and neural stunner.

Fortunately, Mort's station is well armed; Keen is quickly able to find a weapon. And some of the robots use specially designed Pogo Stick version 2.0. With these, Keen is as powerful as ever; but the enemies on Mort's ship are more formidable than anything Keen has ever met before.

The only way that Commander Keen can shut down the ship and get back to the Bean-With-Bacon Megarocket is to collect the four souped-up Power Cores that are hidden in various places on the ship. They are heavily guarded by vicious robots, and dangerous traps. Keen must collect them all, or...

The Universe is Toast!


  • Blue Box
  • Red Box
  • Yellow Box
  • Green Box

Level Maps

Spoiler Warning! This shows the whole levels.

Release History / Downloads