After payment you will receive a key

Codes cannot be accumulated; please use them immediately after purchase.
🚨In case of disputes, please provide a video recording of you using the code immediately after purchase.
If the code is not used within 48 hours, any issues that arise will be the buyer´s responsibility, and all losses will be borne by the buyer.

From the Microsoft Store:

To claim the game, open a Windows 10 or 11 device and search for "Microsoft Store".
Ensure that you are signed into the Microsoft Store under the account you wish to play Wolfenstein: The Old Blood, then select the Account button in the upper-right corner, next to the search bar.
A menu will open with the option to "Redeem code or gift cards".
Select that option, input the 25-character code, and click "Next" to link the content to the account.