Marathon Infinity

Marathon Infinity expands the closed universe of the Marathon series by quite a bit. The solo/co-op campaign "Blood Tides of Lh'owon" is a 20-level scenario with new textures, weapons and aliens. In addition, the scenario sheds a surprising new light on the story's characters and the meaning of the events. After defeating the Pfhor and resurrecting the ancient remains of the S'pht, the player now faces a world where friends become enemies and not everything is as it seems...