XCOM Enemy Unknown 50% Steam Discount Key Giveaway

Prepare for the rebellion in XCOM 2 by witnessing the invasion. With this 50% Steam discount on XCOM: Enemy Within Complete Pack, you will understand the battlefield that awaits you in XCOM 2. Only valid until October 29!

Gamers tell you why you need to play this game before the sequel:

I've only played 204 hours of this game but I think it's safe to say it's my favourite game ever. At least until XCOM2 comes out.
-herbzi (204.4 hrs on record)

You know this game did something right when characters that have no backstories and barely even talk die and your first reaction is to feel deep pain. Not because of the gruesome death that a wild Chryssalid can make, not because of the large grenade explosions or the laser beams of a Sectopod, but because an XCom Operative, a squadmate, a friend, will not see the end of the war that got us all together. Feels/10
-Ask (41.1 hrs on record)

About XCOM: Enemy Unknown:
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. 

The original XCOM is widely regarded as one of the best games ever made and has now been re-imagined by the strategy experts at Firaxis Games. XCOM: Enemy Unknown will expand on that legacy with an entirely new invasion story, enemies and technologies to fight aliens and defend Earth. 

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.