Riven.

About Riven

Riven: The Sequel to Myst is a 1997 adventure game developed by Cyan Productions and published by Red Orb Entertainment for Mac OS and Microsoft Windows. It is the sequel to 1993's Myst, and the second installment of the Myst series. The game's story is set after the events of its predecessor; having rescued Atrus, who had been trapped by his sons, the player character is enlisted by him to free his wife from his power-hungry father, Gehn. Riven takes place almost entirely on the Age of Riven, a world slowly falling apart due to Gehn's destructive rule.