The Dynasty Shield Pack for Crusader Kings II! Includes all Dynasty Shield packs ever released for Crusader Kings II: Crusader Kings II: Dynasty Shield Crusader Kings II: Dynasty Shield II Crusader Kings II: Dynasty Shield III Crusader Kings II: Dynasty Shield Charlemagne

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.