Missing CD Key

• I purchased a game through Steam.  Where is my CD Key?
• I purchased a game through a retail store and I am missing my CD Key.  Where is my CD Key?

Games purchased through Steam

Valve games

Valve games purchased online through Steam do not include or require a CD Key.

Third party games

CD Keys are issued with many third party games.  In many cases, Steam will display your CD Key when you first launch your game.  If your game launches and asks for a CD Key you do not have, please try the following:

1. Right-click on the game in the Library tab and select View Game CD Key. This option is not available for all Steam games and a CD Key is not required for all games.
2. Verify your GCF files.  Follow the directions in the Verify Integrity of Game Cache section of the Verify Game Cache Files (GCF) article. 

Games purchased through a retail store

If your game did not come with a CD Key where there should be one printed, please see the Contacting Steam Billing and Support topic for instructions to contact Steam Support.