Steam Activation Key Guide

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Activating a Product on Steam

How do I register a CD Key to activate a product on Steam?

Please follow these instructions to activate a new retail purchase on Steam:
  1. Launch the Steam client software and log into your Steam account.
  2. Click the 
    Games
     menu option at the top of the Steam client.
  3. Choose 
    Activate a Product on Steam...
  4. Follow the onscreen instructions to complete the process.

Please see the Retail CD Keys article for more info on registering keys.

Register through browser
You can also register a CD key through a browser here.