http://store.steampowered.com/app/204060/

Superbrothers: Sword & Sworcery EP is an exploratory action adventure with an emphasis on audiovisual style. Traverse a mythic little realm, use a sword to do battle & evoke sworcery to solve mystical musical mysteries. Co-operate with friends via Twitter, experience a videogame world that is affected by moon phases & help a wandering warrior monk complete her woeful errand.

Superbrothers: Sword & Sworcery EP features an album's worth of original music by noted composer Jim Guthrie as well as artwork & designs by Superbrothers Inc, crafted & engineered by videogame wizards at Capy in Toronto, Canada.