Conquer the galaxy in Call of Duty: Siege, the real-time strategy & collectible card game set in the Call of Duty: Infinite Warfare universe! From the team behind the hit strategy game, Call of Duty: Heroes, comes a new way to wage war. Command your warship, the “Retribution,” to form offensive strike teams and reclaim planets from enemy factions that have seized power from the United Nations Space Alliance. To strengthen your position, you’ll need to build up strong defenses to maintain your grasp on hard won territories.