Mystery House was the first graphic adventure created by Sierra On-Line in 1980. It was released into the public domain to celebrate Sierra’s Anniversary.
Hi-Res Adventure #1 (Mystery House) takes place in an old house with many rooms. The plot is simple, there is a killer in the house and you must find him (or her) before they kill you.
It is necessary to study the picture carefully, as a lot of the objects with which you need to interact are not described. I had trouble picking up the jug in the refrigerator until I thought about it and remembered it was an American game. It is called a pitcher.
Pressing return without typing anything toggles the text/graphics. The graphics are nothing to write home about, but they must be viewed keeping in mind that this is a historical piece of work. Despite what it tells you in the introduction about taking hours to move and weeks to solve a puzzle, it isn’t a difficult game – by today’s standards anyway – I completed in just over an hour.
Very simple, but notable for its place in adventure history.