XCOM 2 is a video game set in a world that has been taken over by aliens. 20 years have passed since the world's last line of defense, XCOM, was destroyed and scattered. The aliens now rule Earth with shining cities they promise will bring humanity a bright future, but they are hiding sinister plans beneath the surface and eliminating anyone who doesn't agree with them. Those living on the fringes still have some freedom, however, and it is here that a force gathers to stand up for humanity against this alien threat. The remnant XCOM forces must find each other again and fight to expose the truth behind this occupation and ultimately eliminate the alien menace for good.

XCOM: Enemy Unknown is a video game from the makers of the Civilization series about humanity's fight against an unknown enemy. The governments of Earth have joined forces to form XCOM, a secret paramilitary organization tasked with defending the planet from extraterrestrial invasion. Players will be put in command of XCOM and must build and manage their base, research alien technology, plan combat missions and direct soldiers in battle in order to save mankind.