Are you up to the challenge?“Clash in the Clouds” puts an intense focus on BioShock Infinite combat. Combine weapons, Vigors, Gear, Tears, and Sky-Lines in ways you never thought possible as you square off against impossible odds. This pack features 60 challenges in four brand-new environments. Complete Blue Ribbon Challenges and unlock concept art, Voxophones, Kinetoscopes, and more in The Columbian Archeological Society.