XCOM: Enemy Unknown will place you in control of a secret paramilitary organization called XCOM. As the XCOM commander, you will defend against a terrifying global alien invasion by managing resources, advancing technologies, and overseeing combat strategies and individual unit tactics. You will control the fate of the human race through researching alien technologies, creating and managing a fully operational base, planning combat missions and controlling soldier movement in battle.

(Includes: XCOM: Enemy Unknown, XCOM: Enemy Within, Elite Soldier Pack, Slingshot Pack)

Features:

• Single-player
• Multi-player
• Cross-Platform Multiplayer
• Steam Achievements
• Full controller support
• Steam Trading Cards
• Steam Cloud