All Hell Has Broken Loose!!! The Haunted is a fast paced third person action horror game that focuses on delivering an intense multiplayer experience. Your goal is to liberate cursed places and survive the assault from the minions of Hell. The game features several multiplayer modes such as co-op survival, demons vs. humans and demonizer.Go to: http://store.steampowered.com/ and download STEAM client
Click “Install Steam” (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don’t have).
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.
After successful code verification go to the “MY GAMES” tab and start downloading.