Myst

Myst (or MYST) is a graphic adventure computer game designed and directed by the brothers Robyn and Rand Miller. It was developed by Cyan, Inc., a Spokane, Washington-based studio, and published and distributed by Brøderbund. The Millers began working on Myst in 1991 and released it for the Macintosh computer on September 24 1993. It has spawned four direct sequels and several spin-off games and novels. Myst was the bestselling PC game for several years, until The Sims exceeded its sales.
See more at Wikipedia.org...