XCOM: Enemy Unknown is a turn-based tactical strategy game for the Xbox 360. Set in a near-future Earth under alien invasion, players command an elite multinational military organization called XCOM to defend against the extraterrestrial threat. By managing resources, researching advanced technologies, and directing soldier squads in intense, grid-based combat missions, players engage in a high-stakes battle for humanity's survival. With deep strategic gameplay, permadeath for squad members, and dynamic engagements, it's a thrilling blend of strategy and science-fiction suspense.