The EverQuest universe is a fictional universe where the EverQuest games take place. It is a constantly evolving and ever-expanding collection of playable areas called "zones" which are linked together and through which players can venture. (See Zones of EverQuest) Each zone is part of a city, region, or continent and ranges from underground tunnels to dungeons to above-ground areas such as plains, forests, snow-covered hills, castles, and canyons.

Most of the playable areas are located on the numerous continents of the fictional planet of Norrath. Norrath has several moons, of which Luclin is the only one with playable zones. In addition, there are alternate planes of existence, called planes, which are the homes of the various EverQuest deities, and are not physically located on Norrath.