Valheim is a brutal exploration and survival game set in a procedurally generated purgatory inspired by Norse mythology. You play as a fallen Viking who must prove your worth to Odin by conquering the primordial wilderness and defeating massive mythical bosses. The gameplay loop involves gathering wood and stone to build elaborate longhouses, forging powerful weapons, and sailing custom ships across treacherous seas. It supports cooperative play for up to ten players, allowing friends to work together to tame the wild and build a kingdom in the afterlife.