Fract
Fract is Myst-like game where you are immersed in this wonderful Tron inspired world. You solve puzzles and explore this glorious colorful world. The game consists of point and click controls making it quite interesting and unique.
The game was developed by Richard Flanagan and among the finalists for the 2011 IGF Student Showcase Finalist. Fract is done entirely in 3D and features a really atmospheric world that takes away the player and immerses him into it.
Currently, the updated beta version of the game runs on both PC and Mac systems so it's much easier for various games to enjoy. Give it a go by clicking the image or download link.