The game takes place in Sanctuary, the dark fantasy world of the Diablo series. This world was saved twenty years prior by a handful of unnamed heroes in Diablo II, heroes who, having survived the onslaught brought by the armies of the Burning Hells, have gone mad from their ordeals. It is up to a new generation of heroes to face the forces of evil threatening the world of Sanctuary.
Official Website: http://us.battle.net/d3/en/
All these lovely people attended Diablo III!