The Callisto Protocol - Story DLC

Survive the Biophage Crisis in The Callisto Protocol - Story DLC

The Callisto Protocol - Story DLC plunges players back into the nightmarish confines of Black Iron Prison, where the threat of the biophage virus continues to loom. In this gripping extension of the survival horror experience, you must navigate the crumbling penitentiary in a frantic effort to recover Dr. Mahler's critical research before it slips beyond your grasp. With each corner turned and dark corridor traversed, the stakes get higher.

Unravel Mahler’s Dark Secrets

As players return to the ruined halls of Black Iron, there’s more than just survival at stake. Mahler's experiments left a disturbing mark, and the game invites you to delve into the chilling depths of his research. Discover how Kallipolis’ influence extends well beyond the prison walls, challenging your perceptions of the events that unfold. The narrative thrust keeps you engaged as you piece together the horrifying truth behind these wild experiments, which contribute to the atmosphere of dread.