realMyst
With Myst i found the way to gaming on a computer (my first intensiv contact with a Mac) and i never changed my interests on a game since i play Myst. The series is for me the best computergame ever and no other game reach this "level" for me. It's hard that Ubisoft canceld this game with the fifth sequel and i hope, that anyone in Hollywood makes a movie with the elements of this fantastic adventure game.
By the way... realMyst is a directors cut of the first Myst game who relased in the year 1996. In this version you becomes a fotorealsitic graphics (full screen), changing weather, more beautiful light-effects, a day/night changing and a secret new (little) level. It was great to come back to Myst.