Proteus is a exploration-based piece of interactive art by Ed Key and David Kanaga. In it, players take a walk through an abstract procedurally-developed island. While Proteus is probably not going to challenge the conception some have of art games as low-rez inaction-fests, that niche of gamers who'd be interested in a chill 45-minute retro vacation will find it a place worth hearing, and a song worth exploring.