The film has several explicit references to the AD&D game. A map during the opening credits contains the name "Yeenoghu", a demon lord from the game, and another demon lord from the game, "Jubilex", is mentioned by the characters several times. Also, several references contain the names of AD&D adventure modules (published scenarios). Berek mentions that Dorian helped him in the Ghost Tower of Inverness, a reference to module of the same name (C2). Nim asks Lux what happened to her brother at the "Barrier Peaks", a reference to the module "Expedition to the Barrier Peaks" (S3). Lux makes reference to the Shrine of the Kuo-Toa, a reference to the module of the same name (D2).