Rival Nations: The Fall of Gods
Saren, the greatest source of of arcane knowledge in the rival nations. Ruled by mages, your worth to society is determined by your arcane puissance. The capital is Lentil, a city near schizophrenic, crystalline towers and beautiful palaces for mages, and slums for the common folk.
The only other Metropolises are Bakrat, the primary port city, where the ever enterprising crime families of saren operate out of, and Welveren, the Sunless city, found in the deepest chasm thats been accurately mapped.
The geography of Saren is flat plains, occasionally broken by deep chasms. Towns are built both above the ground, and below in the deeps. Settlements on the surface are generally agricultural, whereas the settlements in the chasm provide mineral and metal goods to the rest of the country.
Forests are rare within the borders of saren, but not unheard of, usually with a small town nearby to take advantage of the lumber.