The Keencyclopedia
Universe is Toast, The
Other
The proposed trilogy of Commander Keen that never quite got off the ground. The Trilogy was called the Universe is Toast and would have been Keen Episodes 7-9. The project was mainly shelved by ID due to more popular games like Doom and Wolfenstein 3D.
Found in: Keen 5, Keen 6

Clues in Keen 5

Clues in Keen 6