You can’t afford to rest! The Walking Dead: Survival Instinct players will have access to the Herd Mode, see how long you can survive against endless waves of walkers. In addition, fight off walkers in the story mode with a new arsenal of melee weapons including a survival knife, sawtoothed machete, kukri, reinforced hatchet, and advanced machete. How many frenzied flesh-eaters can you survive against before joining their ranks? Note: A New Game must be started to access the extra weapons.

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.