Diablo III is an action role-playing game from Blizzard Entertainment, set twenty years after the events of Diablo II. Players choose a hero from five distinct classes and must battle hordes of demons to protect Sanctuary from the evil that has arisen following the destruction of the Worldstone. The game features custom 3D graphics and physics-enhanced environments with interactive and destructible elements, as well as a random level generator for dynamic gameplay. Players can play cooperatively or competitively online via Battle.net, Blizzard's renowned online gaming service.