The city-states are the last bastions of civilization in the world of Athas. Each is, or has been, ruled by a sorcerer-king for thousands of years.

Current, known, city-states include…
Balic
Draj
Gulg
Nibenay
Raam
Tyr
Urik

Several city-states have fallen for various reasons, including…
Giustenal
Kalidnay