Visage

Visage is widely considered the spiritual successor to the legendary P.T. demo. It is a slow-burn psychological horror game set in a massive, ever-changing house. The game focuses on exploration and uncovering the dark history of the home's former inhabitants.

It is incredibly effective at building tension, using lighting, sound, and environmental cues to keep the player in a constant state of unease. It is a challenging game that doesn't hold your hand, making every discovery feel earned. If you are looking for a pure, terrifying psychological experience, Visage is a top contender.