KEY ACTIVATION
Please follow these instructions to activate a new retail purchase on Steam:
- Launch the Steam client software and log into your Steam account.
- Click the Games Menu.
- Choose Activate a Product on Steam...
- Follow the onscreen instructions to complete the process.
Please see the
Retail CD Keys article for a list of games accepted for registration on Steam.
Important:Ensure that you are activating your game through the Steam application. The Steam website cannot be used to activate a game. If you have not yet done so, you can download and install the Steam application by clicking on the green "Install Steam Now" button here:
http://store.steampowered.com/about/
KEY INCLUDES THE FOLLOWING GAMES:
Shortly after landing on an alien surface, you learn that hundreds of your men have been reduced to just a few. Now you must fight your way through heavily fortified military installations, lower the city's defenses and shut down the enemy's war machine. Only then will the fate of humanity be known.
Minimum: A 100% Windows XP/Vista-compatible computer system
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