How To Redeem Steam Keys
This process is simple, and made much easier if you copy and paste the keys (1 at a time). Follow the steps below for each key!
1. Go to the "Library" Section in Steam.
2. Select the "Activate a Product" option.
3. Copy your key and paste into the text box.
4. Repeat for any other keys you have!
You can also do this by exiting "Big Picture Mode" and following these instructions.