In order to redeem your Steam Wallet Code, you will need to create an account at steampowered.com. The quick link to this page is here: https://store.steampowered.com/join/

1. Click on your username in the upper right-hand corner of the screen, and select account details.
2. On the right side of the screen, there is an option to add funds to your Steam wallet.
3. Click the link labeled: Redeem a Steam Wallet Code
   https://store.steampowered.com/account/redeemwalletcode
4. Enter the code and press redeem
5. Your code is now redeemed! You can now purchase your games.