Roberta and Ken Williams wrote Mystery House for the Apple II. Containing 70 simple two-dimensional drawings by Roberta Williams, Mystery House was the first computer adventure game with graphics.
The game was also eventually released into the public domain.
♦ In the iTunes Store for iPhone and iPod Touch you could buy version 1.0.2 of the program at this link (accessed 12-30-2009):
http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=307511510&mt=8
