Civilizations rise and fall; both cities and their ruins offer many opportunities for adventure.
Underground
Ancient, undisturbed crypts to the city sewers - everything to be found within the dark, dang regions of the world or in the Darklands itself.
Urban
City streets and towers, seedy taverns and alleyways, to the denizens of isolated villages on the frontier. Everything that lives in, around, or nearby population centers.
Ruins
Places where people used to live - but no longer. Abandoned cities, ruined fortresses, or desecrated temples hold even more diverse and strange creatures.