Trion Worlds

Rift is a MMORPG set in a fantasy world called Telara, which is the focal point of several different elemental Planes. These Planes are realities representing the elemental forces of Air, Fire, Water, Earth, Life, and Death, and it is at the one point where every one of these Planes intersect with each other that Telara exists. Each Plane is governed by a Dragon-deity, which is the personification of that elemental force.