Set in Dunwall, an industrial whaling city, the story follows a world where strange steampunk-inspired technology and otherworldly forces exist in the shadows.

You are the once-trusted bodyguard of the beloved Empress, framed for her murder and turned into an infamous assassin known only by a disturbing mask.

As the city is besieged by plague and ruled by a corrupt government armed with industrial technologies, dark forces offer abilities beyond those of any common man, but at a cost. The truth behind the betrayal remains unclear, and the life you once had is gone forever.