With the latest update Hunt Gargoyles, Vampires, Mutants on All maps from the base game with all base game GAMEPLAY MODES CAMPAIGN - Want the world's most unique places and missions? We'll get you that. SURVIVAL - Want unlimited waves of bloody creatures? We'll get you a real blood bath! MISSIONS - Want to hunt a specific target? We'll get you hunting. ARENA - Want to team up with them to hunt others? We'll get you your team. EXPLODING ENEMIES - You want them exploding? We'll get them to explode.

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 "LIBRARY" tab and start downloading.