Alien Hallway is a totally new action- strategy shooting game for the PC developed by Alien Shooter series makers, Sigma Team company. Here, in Sigma's adrenaline-fueled game, players measure stamina with a never-ending stream of green creatures within the borders of a special military mission. The rules are severe and the fate of Humanity is put on the line. 1. Go to: http://store.steampowered.com/ and download STEAM client.
2. Click “Install Steam” (from the upper right corner)
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3. Install and start application, login with your Account name and Password (create one if you don’t have).
4. Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam…
Follow the onscreen instructions to complete the process.