Log in to your Steam account on the Steam website or desktop application.
Navigate to Account Details, Add Funds to Wallet, Redeem a Steam Gift Card Code, and then enter your gift card's code from NOSH.
How to redeem a Steam e-gift card?
Log in to your Steam account on the Steam website or desktop application.
Navigate to Account Details, Add Funds to Wallet, Redeem a Steam Gift Card Code, and then enter your gift card's code from NOSH.