The original X-COM game, also known as UFO Defense, was released, introducing players to the alien invasion theme and turn-based tactics.
Firaxis Games started developing the reboot of the classic X-COM series, titled XCOM: Enemy Unknown, aiming to modernize the strategy experience.
Firaxis Games officially announced the development of XCOM: Enemy Unknown, the first new entry in the series in over a decade.
XCOM: Enemy Unknown was released worldwide to critical acclaim, revitalizing the tactical strategy franchise with modern graphics and gameplay.