Customise your decks with 3 exclusive card backs and 10 exclusive alternate card illustrations. The ''Krog'' card back: Defeat the Krog King to obtain it. The ''CAP-10'' card back: Slay the CAP-10 to get it. The ''Roguebook Conqueror'' card back: Complete the Roguebook once to earn it.

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.