There are several known worlds in the universe of Asheron's Call:
- Auberean - The planet the Game takes place on.
- Ispar - The Homeword of Isparians - the humans that are playable characters. Heritage groups on Ispar include: Aluvian, Gharu'ndim, Milantos, Roulean, Sho, Silveran, Soia-Vey, and Viamontian.
- Bur - Homeworld of the Burun, Moars, Fiazhat, and possibly the Thrungus. The Falatacot have had a strong presence on this world, although it is not their homeworld.
- Tuu - Homeworld of the Lugians.
- Ezheret-Hazahtu - A planet and moon. The Moon, Ezheret, is the homeworld of the Tumeroks, Banderlings, Mosswarts, and Drudges.
- Insect Planet - Homeworld of the Olthoi and the Grievvers.