Welcome to the game or THE MAD HOUSE ! In this game you have to not only focus on your FOES but HEY ! MIND YOU'RE STEP TOO. Here you can either be in a calm house or trapped in a SCI-FI LAB ! .Get CHASED, GET KNIFED,KEEP BOMIN!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.