Batman: Arkham Origins Game Keys

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.

Includes 4 items: Batman: Arkham Origins, Black Mask Challenge Pack DLC, Online Supply Drop 1 DLC and Online Supply Drop 2 DLC. Batman: Arkham Origins is the next installment in the blockbuster Batman: Arkham videogame franchise. Developed by WB Games Montréal, the game features an expanded Gotham City and introduces an original prequel storyline set several years before the events of Batman: Arkham Asylum and Batman: Arkham City, the first two critically acclaimed games of the franchise. Taking place before the rise of Gotham City’s most dangerous criminals, the game showcases a young and unrefined Batman as he faces a defining moment in his early career as a crime fighter that sets his path to becoming the Dark Knight.