Cranston Manor is a graphic adventure published for the Apple II by On-Line Systems in 1981. It is Hi-Res Adventure #3. The player must invade a mansion that was occupied by a millionaire and steal the sixteen treasures that are inside of it. The game allows players to switch between graphics-based and text-based gameplay.Cranston Manor is based on Larry Ledden's text adventure The Cranston Manor Adventure. The graphical version was programmed by Ledden, Ken Williams, and Harold DeWitz.