XCOM: Enemy Unknown

Enemy Unknown couples tactical turn-based gameplay with action sequences and on-ground combat. Recruit, specialize and train unique soldiers and manage your personnel. Detect and interrupt the alien threat as you construct and expand your XCOM headquarters. Direct soldier squads in turn-based ground battles and deploy air units such as the Interceptor and Skyranger. The fight spreads around the world as the XCOM team engages in over 70 missions, communicating and negotiating with governments around the world.