Unbroken: Alone in the Infinite

A third path, taken only once. This Booker DeWitt, distinct from every other Booker DeWitt and Zachary Comstock, learns of the fate his alternate selves suffer. He sits in silent vigil as the terrible cycle repeats before his eyes, watching his and his daughter's alternate selves struggle to break free of it. Suggest reading Bioshock Infinite: Unbroken and Song of Sorrow first.