Released by Gray Design Assoicates in 1994, Nitemare 3D is a first person shooter in the same vein as Wolfenstein 3D. The game is a follow-up to the Hugo trilogy of parser-based adventure games and chronicles Hugo's fight to rescue his girlfriend Penelope from an evil scientist named Dr. Hammerstein.

The first episode, played by slamo in record time, is a journey through Hammerstein's bizarrely designed mansion, featuring witches, vampires, and closets that seem to go on forever.