Follow these instructions to activate a new retail purchase on Steam:
- Launch the Steam client software and log into your Steam account.
- Open the Games menu.
- Choose Activate a Product on Steam.
- Follow the onscreen instructions to complete the process.
- The game will be downloaded and added to your Steam LIBRARY.
Additional information about Steam:
- Activation will be blocked for 1 hour if you type an incorrect serial number three times in a row.
- If you experience any problems while accessing your account, try contacting Steam Technical Support directly.