Br1ck's Keen 5 Level
Br1ck's Keen 5 Level is the first fan-made Keen 5 level to be released on the Internet, set as level 14. The world map isn't edited to include an entrance to this level, therefore the player must use the warp cheat to access the level. The level uses the ending music. There's a well-hidden secret area with lots of items.
The level is present in Keen Asylum under the name Robo Pantry, with slight modifications.