Outlast's 'Whistleblower' DLC will launch May 6 in the US and May 7 in Europe and Australia, developer Red Barrels has confirmed.
The expansion will release simultaneously across both PC and PlayStation 4 editions, with the PC edition launching May 6 internationally. The PS4 edition will release the day after in Europe and Australia.
"Whistleblower will let you play as Waylon Park, a software engineer under contract with Murkoff and the man who emailed journalists around the world - including Miles - at the beginning of Outlast," the studio wrote on the announcement of the DLC.
"Spending a couple of weeks at Mount Massive, during which he was unable to even talk to his wife and son in Boulder thanks to strict security protocols, Weylon developed a deep-seated distrust of the profit-motivated scientists and doctors leading dangerous and irresponsible experiments on their patients.
"Identifying with those poor souls fueled Weylon's anger, and set the stage for his unmasking of Mount Massive's rotten core."
The well reviewed horror game released for PC last year, followed by a PS4 release in February.