Dark Fantasy.

An endless swamp soaked in the blood of ancient battles, where the air is heavy with the smell of rot and magic. The marshes are littered with bones and rusty weapons, and ghostly lights hover above the surface, luring travelers into the bog. It is home to the faceless and half-demons, who dwell in temporary huts made of bones and roots. In the center stands an altar of black stone, covered with runes, where dark sacrifices are held.