The Ultimate Haunted House

Gahan Wilson's The Ultimate Haunted House is a computer adventure game developed by Byron Preiss Multimedia/Brooklyn Multimedia, published and distributed by Microsoft Home, and directed by Judson Rosebush. The game is designed by Walt Freitag and Barbara Lanza and published in 1993 and 1994. The game places the player in the middle of a bizarrely humorous and eerie haunted house populated by Wilson's wacky characters. The player must explore 13 rooms and find 13 hidden keys before 13 hours on the mystery clock run out. The game runs on Mac OS 7 and Microsoft Windows 3.1.