After purchase, you will receive a KEY to activate the specified software product.

Become part of a secret military organization called XCOM.
From now on, you and your comrades are the last obstacle to hostile aliens to conquer Earth. In the role of commander of a special unit, you have to distribute resources, develop technologies, develop a common strategy for battles and determine the tactical disposition of each soldier. The original XCOM is a real gem of the world of computer games. And now her ideas, capabilities and tactical depth will come to life again, thanks to the efforts of the Firaxis.XCOM employees: Enemy Unknown brings to the world of XCOM a new story, new enemies and new technologies with the help of which you have to protect the Earth. The fate of humanity will be in your hands. Only by effectively exploring alien technology, developing your own base, planning operations and controlling the movement of each fighter on the battlefield, you can achieve success in this war.

Key features:
Strategy. XCOM: Enemy Unknown combines step by step tactical battles and an incredibly exciting action game.
Base. Hire, equip and train soldiers and personnel. Search and neutralize aggressive aliens. Develop and equip your headquarters.
Tactics. Control fighters in tactical turn-based battles on the ground and use air support - interceptors and "Rangers".
Threat. Protect the Earth to be more than 70 missions that require your attention across the globe. You have to not only fight and aliens, but also to deal with the government of various countries.

Installation Instructions:
Download and install Steam (if not already installed);
Register an account on Steam or enter an existing one;
Go to the "My Games" section and select "Activate via Steam ...", read and accept the Steam Subscriber Agreement and enter the key received immediately after the payment;
After activation, the game will appear in the list of games and you can download it from Steam. The installation process (download) takes about 10-60 minutes (depending on the available Internet channel).