The Warcraft universe is a fictional universe in which a series of games an books published by Blizzard Entertainment are set. Players were first introduced to this universe in the original Warcraft: Orcs & Humans in Eastern Kingdoms of the planet Azeroth. Known worlds in the Warcraft universe include Azeroth, Draenor the Red World (later called Outland), Argus, K'aresh, and Xoroth.