XCOM: Enemy Unknown is an action strategy game developed by Firaxis Games. Play as the commander to a special paramilitary unit called XCOM. Your job is to protect earth from global alien invasion. Manage resources, advance technologies, and plan out individual units as well as global scale strategies to fend off the invading foe! Engage in over 70 unique missions, interact and negotiate with world governments, research alien devices and customize your own instruments of death! Build a base, develop it, grow your own units and participate in turn-based close combat!

XCOM: Enemy Unknown is a turn-based tactical video game, developed by Firaxis Games and published by 2K Games. The game is a "reimagined" remake of the 1994 cult classic strategy game UFO: Enemy Unknown (also known as X-COM: UFO Defense) and a reboot ...   more on Wikipedia

Anomaly: Warzone Earth Steam Key GLOBAL is a game released on 2011-04-08. Published by 11 bit studios.

Anomaly: Warzone Earth is a real-time strategy reversed tower defense video game by 11 bit studios. The game was initially announced in late 2010, and released on April 8, 2011 for Windows and Mac OS X. ...   more on Wikipedia