Br1ck's Keen 5 Level
Br1ck's Keen 5 Level is the first fan-made Keen 5 level to be released on the Internet, and is set as level 14, which is not set on the world map, therefore the player must use the warp cheat in order to access the level. The level uses the ending music. The red bottom part of the level (which can be seen on the map in the following section) cannot be accessed without cheating.
The level is present in Keen Asylum under the name Robo Pantry, with slight modifications.
Spoiler warning! This shows the whole level.