The Elder Scrolls Online 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.

The Elder Scrolls Online: Tamriel Unlimited, the latest chapter of the award-winning series, brings the legendary experience online for the first time. Explore the vast world with friends or embark upon the adventure alone - the choices you will make will shape your destiny. Features NO SUBSCRIPTION REQUIRED - Purchase the game and enjoy your adventures without a monthly fee. THE FIGHT FOR TAMRIEL BEGINS! - Three alliances vie for control of the Empire. As these powers battle for supremacy, darker forces move to destroy the world. PLAY THE WAY YOU LIKE - Battle, craft, fish, steal, siege, or explore. The choice is yours to make in a persistent Elder Scrolls world. A MULTIPLAYER RPG - Adventure alone, quest with friends, or join an army of thousands in epic PVP battles. TELL YOUR OWN STORY - Discover the secrets of Tamriel as you quest to regain your lost soul and save the world from Oblivion.