Clausum

Clausum is a first-person psychological horror game about Noah, a broke and desperate man offered $30,000 to complete a terrifying challenge. The challenge takes a sinister turn when he becomes trapped in a possessed house, with no apparent way out.

You explore the house, search for useful items and solve puzzles as you try to survive and uncover its dark secrets. Every room may be a deathtrap, and the house tries to keep Noah trapped forever.