Group DescriptionMicroProse's series of human "eXtraterrestrial COMbat units" fighting against alien invaders, initially in turn-based tactical squad combat on land and underwater, and eventually in other gameplay styles and environments and from other perspectives.
The last game in the series was X-COM: Enforcer in 2001. The series was revived in April 2010 when 2K Games announced a new title based on the franchise.
Front cover for X-COM: UFO Defense
Front cover for XCOM: Enemy Unknown - Slingshot
Front cover for XCOM: Enemy Within
Front cover for UFO: Enemy Unknown / X-COM: Terror from the Deep
Front cover for X-COM (Collector's Edition)
Screenshot from X-COM: UFO Defense
Screenshot from XCOM: Enemy Unknown - Slingshot
Screenshot from XCOM: Enemy Within
Screenshot from X-COM: Interceptor
Screenshot from The Bureau: XCOM Declassified