In the remote mountains of Colorado, horrors wait inside Mount Massive Asylum. A long-abandoned home for the mentally ill, recently re-opened by the “research and charity” branch of the transnational Murkoff Corporation, has been operating in strict secrecy… until now.

Acting on a tip from an inside source, independent journalist Miles Upshur breaks into the facility, and what he discovers walks a terrifying line between science and religion, nature and something else entirely. Once inside, his only hope of escape lies with the terrible truth at the heart of Mount Massive.

The game starts as a prequel to Outlast, revealing the reasons behind Mount Massive Asylum’s outbreak, while simultaneously overlapping with the main story to reveal its conclusion from the previous cliff-hanger. It was released for PlayStation 4 and PC on May 6th, 2014, and for Xbox One on June 19th, 2014.