Underhell is a Source Engine game developed by the Underhell Team in collaboration with We Create Stuff. Underhell Chapter 1 requires ONLY Source SDK Base 2007 installed. No Source game is required.

thedevon says

10/10 - Agree (2) Disagree

scary and fun. one of the best mods ive ever played. if you dont like the scary stuff you can just get in the car and play the story.