Buy XCOM: Enemy Unknown - The Complete Edition as a Steam Key.

From the makers of Sid Meier’s Civilization comes a game about civilization’s last stand. As the commander of an elite paramilitary organization known as XCOM, you control Earth’s defenses against a terrifying alien invasion.

XCOM: Enemy Unknown – The Complete Edition includes the Game of Year award-winning XCOM: Enemy Unknown, plus the critically-acclaimed expansion, XCOM: Enemy Within, and all of the released add-on content packaged together for an incredible value.

The Complete Edition Content Includes:

XCOM: Enemy Unknown

XCOM: Enemy Within

Elite Soldier Pack add-on content

Slingshot add-on content

Second Wave add-on content

Features XCOM: Enemy Unknown