MooDDooM

mooDDoom or MooDDooM is a modified version of Knee-Deep in the Dead in which almost all resources (including maps, sounds, sprites, textures, music, in-game text and the palette) are reversed. It was released on 6 August 2003 by Owen "Sarge Baldy" Lloyd. The map contains a DeHackEd lump; as a result, the author suggests playing the map under a Boom-compatible port.

The WAD was not accepted to the idgames archive due to its use of maps initially created by id Software, which in Ty Halderman's opinion were not significantly different from the originals to justify their inclusion.

The map was interesting to a number of players due to its novelty value; however, many were frustrated by the reversed palette, and some users preferred to remove it before playing.