Activation region: Global / Worldwide (RF and CIS Including)About this game:

You know why you came here. The huge research complex of the United Aerospace Corporation on Mars has been captured by cruel and merciless demons, ready to conquer our world, and only one person stands in their way. You are a lone DOOM infantryman, humanity's last hope. You must destroy them all

RANDOM STEAM GAME FOR POSITIVE FEEDBACK!
PLEASE ATTENTION !!!
After activation, the game will forever remain in your steam library!

Game activation instructions:

1. If you have not installed Steam yet, then download and run the installer: http://steampowered.com/download/SteamInstall.msi
2. Create a new Steam account if you are not already registered there.
3. Log in using your Steam account through the Internet browser: https://store.steampowered.com/login/
4. Go to the "My Games" section and select "Activate via Steam ...", read and accept the Steam subscriber’s agreement and enter the key received immediately after payment.
5. After that, the game will appear in the "Library" section, and you can download it from steam.

In case of any problems or questions regarding the purchase or activation of the game, immediately contact me through the "Ask a Question" form.