Play Maniac Mansion (dos) Online

Maniac Mansion is a point and click adventure game released in 1988 for the MS-DOS platform. It was developed and published by Lucasfilm Games LLC. The game is presented from a side view perspective and follows a narrative where a high school student named Sandy has disappeared. Her boyfriend, Dave, believes she was taken by Dr. Fred and recruits two other students to help infiltrate a mansion to rescue her.

Players begin by selecting two companions for Dave from a roster of several available characters, forming a party of three. Control can be switched between these three characters at any time. Interaction with the environment is performed by selecting on-screen verbs, such as "Open" or "Use," and applying them to objects within the mansion. Each character possesses a distinct personality and skill set, which influences how they can overcome obstacles. This design means many puzzles can be solved in multiple ways depending on which character the player is currently controlling. The game's structure involves exploring the mansion, solving inventory-based puzzles, and avoiding capture by its inhabitants.

Progression requires careful management of the party, as characters can be captured and imprisoned in a dungeon, requiring a rescue attempt by any remaining free character. Unlike some other adventure games from the developer, it is possible for characters to die, though the game can theoretically be completed with only two surviving party members. The gameplay focuses on exploration, logical puzzle-solving, and navigating the mansion's various rooms and challenges to advance the story and achieve the objective of finding Sandy.