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)
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.