Outlast: Whistleblower acts as both a prequel and sequel, detailing Waylon Park's attempts to expose the Murkoff Corporation's experiments at Mount Massive Asylum while navigating a brutal outbreak. Park, a software engineer, is hunted by variants like Eddie Gluskin before ultimately exposing the company, with the plot providing a definitive conclusion to the saga. For official and secure access to the game and its DLC, it is recommended to use platforms like Steam or GOG.com.