Call of Duty®: Advanced Warfare envisions a powerful future, where both technology and tactics have evolved to usher in a new era of combat for the franchise.Power Changes Everything.
After purchase it is necessary:
1. Download and install Steam http://steampowered.com/download/SteamInstall.msi (if not)
2. Register a new account on Steam or go to an existing one;
3. Select "Activate via Steam ..." in the "Games" section
4. Enter the code you received after payment.
5. After activation, the game appears in the list of games and you can download it from steam, and then start playing.