As a foundational 1987 point-and-click adventure, this main game tasks you with infiltrating a mad scientist's mansion to rescue your girlfriend. You control Dave and two chosen friends from a roster of six, utilizing their unique skills to solve non-linear puzzles. Gameplay is defined by character selection, as your team composition dictates which paths are available and affects the five possible endings. If a character dies, a replacement must be chosen, adding high stakes to the bizarre, hostile environment.
This foundational title, first released in 1987, is a graphic adventure game casting players into a bizarre and dangerous scenario where the primary objective is the rescue of a kidnapped girlfriend. The setting is the sprawling, eerie mansion belonging to the Edison family—a mad scientist, his wife, and their peculiar son—all of whom are under the influence of a sentient meteor that crashed nearby decades prior. Players must navigate this hostile environment, solving intricate puzzles while avoiding capture or worse by the mansion's unsettling inhabitants, which include two large, disembodied tentacles.
The game utilizes a pioneering point-and-click interface, allowing players to interact directly with objects and characters in the environment to progress. A key feature of the experience is the non-linear nature of the adventure. Players select the protagonist, Dave Miller, and then choose two additional friends from a roster of six unique characters to accompany him on the mission.
The choice of companions is crucial, as each character possesses different skills and inventory items. This means that the path through the mansion, the puzzles that can be solved, and ultimately, the outcome of the rescue mission are heavily dependent on the specific team assembled. If any chosen character meets an untimely end within the mansion's dungeon, the player must select a replacement from the remaining unchosen friends. The game concludes if all available characters are eliminated.
The atmosphere is defined by its blend of science fiction horror and dark comedy, centered around the bizarre domestic situation within the Edison residence. The story begins as Dave prepares to infiltrate the property to save his girlfriend, Sandy Pantz, from Dr. Fred. The inhabitants are actively hostile; being spotted often results in immediate capture or death, forcing strategic movement and careful planning.
This main game was initially launched for platforms including the Commodore 64 and Apple II, and subsequently saw releases across a wide array of early computing systems such as DOS, Amiga, Mac, and Atari ST. As a standalone title, it features no downloadable content (DLC) or official expansions. It has seen one subsequent remake released in its history.
The structure supports multiple playthroughs due to the variable team compositions. The game features five distinct possible endings, determined by which characters survive, which specific characters were chosen for the mission, and the sequence of actions taken by the team throughout their infiltration of the mansion.

Maniac Mansion Deluxe is a 1:1 remake of the original "Maniac Mansion" on 256-colour. Sandy, girlfriend of the games' hero Dave has been kidnapped by evil scientist Dr. Fred Edison. So Dave has to gather two friends around him and go to the old mansion to rescue her.
