- "Mount Massive was a pebble in a pond, an experiment on individuals. This is where the real sickness spreads."
- ―Simon Peacock about Temple Gate
Temple Gate is a remote location in the Havasupai Indian Reservation in northern Arizona, and the primary setting of Outlast 2. It serves as the primary location for the Testament of the New Ezekiel cult. It is a testing ground for the Murkoff Corporation's experiments into modifying the brain with microwave broadcasts.
- Temple Gate's coordinates are N 36° 05' 51", W 112° 34' 00". It is located about eighty miles northwest of Flagstaff, Arizona.
- Simon Peacock described Temple Gate as a place where "If you can look at what's there and not eat yourself hollow with shame, you are not human anymore", referring to the experiments conducted by Murkoff Corporation so cruel and inhumane they exceed those at Mount Massive Asylum.