Gothic Mayhem is a mod for registered Wolfenstein, made by Joshua Waight. It was released on January 1, 2005.
It was released the same day as Brutal Damage, and uses that mod's EXE and set of maps. Graphics have been changed as well as the story, instead featuring a Gothic setting enhanced by numerous new graphics and sounds.
The music comes from Dead World Rising 2. The storyline puts you in the shoes of Roland Piercing, an archaeologist who must retrieve the Skull of Hell before a doomsday satanic cult uses it to summon Satan and generally ruin the day for everyone and their dog.
An additional set of maps was planned by Waight and announced on January 6, 2006 but this was never released.