


To their great surprise, Mystery House was an enormous success, quickly becoming a best-seller at a first-release price of US$24.95.
The mystery house game software#
The software was packaged in Ziploc bags containing a 5¼-inch disk and a photocopied paper describing the game and was sold in local software shops in Los Angeles County. Ken spent a few nights developing the game on his Apple II using 70 simple two-dimensional drawings done by Roberta. She thus conceived Mystery House, the first graphical adventure game, a detective story inspired by Agatha Christie's And Then There Were None. Roberta Williams liked the concept of a textual adventure very much, but she thought that the player would have a more satisfying experience with images and began to think of her own game. Having finished Colossal Cave Adventure, they began to search for something similar, but found the market underdeveloped. He and his wife Roberta both played it all the way through and their encounter with this game would have a strong influence on video-gaming history. Rummaging through a catalogue, he found a program called Colossal Cave Adventure. One day, he took a teletype terminal to his residence to work on the development of an accounting program. It becomes obvious that there is a murderer on the loose in the house, and the player must discover who it is or become the next victim.Īt the end of the 1970s, Ken Williams sought to set up a company for enterprise software for the market-dominating Apple II computer. However, terrible events start happening and dead bodies (of the other people) begin appearing. Initially, the player has to search the house in order to find a hidden cache of jewels. Green, a surgeon Joe, a gravedigger Bill, a butcher and Daisy, a cook. The mansion contains many interesting rooms and seven other people: Tom, a plumber Sam, a mechanic Sally, a seamstress Dr.

The player is soon locked inside the house with no other option than to explore. The game starts near an abandoned Victorian mansion. The game is remembered as one of the first adventure games to feature computer graphics and the first game produced by On-Line Systems, the company which would evolve into Sierra On-Line. Mystery House is an adventure game released in 1980 by Roberta and Ken Williams for the Apple II.
