Proteus

Proteus is a game about exploration and immersion in a dream-like island world where the soundtrack to your play is created by your surroundings. Played in first-person, the primary means of interaction is simply your presence in the world and how you observe it.

App ID	219680
App Type	GAME
Developers	Ed Key and David Kanaga
Publishers	Twisted Tree
Categories	Single-player, Full controller support
Genres	Casual, Indie, Adventure
Release Date	30 Jan, 2013