An utter must if you're a Myst fan, and an utter miss if you aren't.

I grew up with Sierra and Lucas 3D adventures, and in a day where adventure games have become synonymous with the point-and-click slideshow style made famous in Myst it was refreshing to “come home” to a true 3D adventure that mixes entertaining characters, charming dialogue, a great story, and old-fashioned adventure gameplay.