XCOM : Enemy Unknown

The originalXCOM is considered as one of the best games ever made and has now been re-imagined by the strategy experts at Firaxis Games. You will find an original and futuristic universe in which you will have to use all your resources to destroy the alien threat. Control the fate of the human race, discover alien technologies, create and manage a fully operational base, plan your combat missions and control your soldiers movement in battle.

XCOM: Enemy Unknown puts you in control of a secret paramilitary organization called XCOM. As the XCOM commander, you will defend the planet against a terrifying alien invasion by managing resources, advancing technologies, and overseeing combat strategies and individual unit tactics.