This guide shows you how to redeem a Steam game key, add the game to your library, and install it.
Before you begin
Find the product key you received after your purchase. This is the activation code, not your order number.
Make sure you have a Steam account. If needed, create one for free at Steam.
Download and install the Steam client on your computer.
Check that your key is intended for Steam and meets any regional or product requirements shown on the product page.
Method 1 – Activate your key using the Steam client (recommended)
The following images are illustrative examples. The Steam interface may look slightly different on your device.
Open Steam and sign in to the account where you want to add your game.
Select Games from the menu at the top of the Steam client.
Click Activate a Product on Steam....
Follow the on-screen instructions, including accepting the Steam Subscriber Agreement if prompted.
Enter or paste the product key from your order and confirm.
Once activation succeeds, open your Library and select the game.
Click Install and follow the installation instructions.
When the download is complete, launch the game from your library.
Alternative menu path: In the bottom-left corner of the Steam client, click + Add a Game → Activate a Product on Steam....
Important: Sign in to the correct Steam account before redeeming the key. Games registered to one account generally cannot be transferred to another account.
Method 2 – Activate your key in a web browser
You can also redeem your key without opening the Steam desktop client:
Sign in to the Steam account you want to use.
Enter the product key and follow the on-screen instructions.
Open the Steam client and go to Library to install your game.
Troubleshooting
“Invalid Product Code”
Double-check every character of the key and remove any extra spaces.
Make sure you are using Activate a Product on Steam, not the Steam Wallet code redemption page.
Verify that the product you purchased is activated on Steam, rather than a different platform.
“Duplicate Product Code” or “This product key has already been used”
The key may already have been redeemed to a Steam account. Check whether the game is already in your library. If you cannot find it, contact our support team with your order number and a screenshot of the message.
The key cannot be activated in your region
Some keys have regional restrictions. Check the supported countries or regions listed on the product page. If you believe your key should work in your region, contact support.
My DLC or add-on content is missing
Downloadable content (DLC) may require you to own the base game on the same Steam account. Check the product requirements and the game's DLC section in your library.
Need help?
If the key still cannot be redeemed, please contact customer support and include:
Your order number
The game title
The exact Steam error message
A screenshot of the error, if possible
Do not share your product key publicly. Our team will help investigate the problem.
For further details, see Steam's official product activation guide.