Mystery House: Game Guide, Developer and Facts
Mystery House — video game guide with key facts, developer and background.

Mystery House is an adventure game released by On-Line Systems on May 5, 1980. It was designed, written and illustrated by Roberta Williams, and programmed by Ken Williams for the Apple II. Mystery House is the first graphical adventure game and the first game produced by On-Line Systems, the company which would evolve into Sierra On-Line. It is one of the earliest horror video games.
Quick facts about Mystery House
- Title: Mystery House
- Developer: Sierra Entertainment
- Released: 1980
- Type: Video game
- Wikidata ID: Q1751498
Compiled from public Wikipedia and Wikidata data. Details can change over time.
Frequently asked questions
What is Mystery House?
Mystery House is an adventure game released by On-Line Systems on May 5, 1980.
Who made Mystery House?
Mystery House is by Sierra Entertainment.
When was Mystery House released?
Mystery House was released in 1980.



