Fez

Fez is a puzzle/platform game developed by independent software developers Polytron.

In Fez, you play as Gomez, a 2D being who lives in a happy 2D world. That is until one day when Gomez encounters a strange and mysterious artifact; a Hexahedron. The Hexahedron gives Gomez a magical fez hat that allows him to perceive a third dimension. Gomez must use his new ability to save the Hexahedron before his world is torn apart.