Most of the Warcraft series takes place on Azeroth. Other planets in the Warcraft universe include, Draenor (also known as Outland), Argus, K'aresh, and Xoroth. Warcraft: Orcs & Humans, the first game in the series, takes place in the human kingdom of Azeroth. The name Azeroth is also applied to the entire planet.



Azeroth has three known continents, named the Eastern Kingdoms, Kalimdor and Northrend, separated by the Great Sea. Two major islands also reside in the Great Sea: Kezan, land of the Goblins, and Zandalar, birthplace of the Troll civilization. In the center of the Great Sea is an enormous, everlasting vortex called the "Maelstrom" beneath which lies the aquatic city of Nazjatar, home of the amphibious Naga.

wikipedia.org