Wantapa County (pronounced Wahn-tah-pah), Oklahoma, is a fictional location that serves as the main setting of Nightfall: Cryptic. It is a small county that exists somewhere in Oklahoma, on the outskirts of a forest and a desert. The city has a high reputation for urban legends, being dubbed "the kookiest place in the pan handle. The three populated areas are the smallest areas in the game, with the forest and desert being much larger.
The city has five sub-areas that can be accessed in game:
- Downtown Wantapa (City)
- The Flats (Suburbs)
- Saguaro County (Desert)
- Pine County (Forest/Rural)
- Dasoonag (Port Town)
- Wantapa County is loosely based on the city of Broken Arrow and Tulsa County in Oklahoma.