In the client: click Games in the top menu, then select Activate a Product on Steam....
Click Next on the welcome screen, then agree to the Steam Subscriber Agreement if prompted.
Enter your product key exactly as shown (no spaces unless they appear in the key). Use Ctrl+V to paste.
Click Next. Steam will verify the key and add the game to your library.
The game will appear in your Library. Click Install to download and play.
Note: Steam keys are region-locked in some countries. Ensure your Steam account region matches the key. If the key says "Already used," it may have been activated on another account—contact support if you didn't use it.
Epic Games Store
Redeem Epic Games keys through the Epic Games Launcher or website. Epics keys add games directly to your Epic library.
In GOG Galaxy: click the + button (Add games & friends) → Redeem code.
Log in to your GOG account if needed.
Enter your activation code and click Redeem.
The game is added to your GOG library. You can download the offline installers or use GOG Galaxy to manage updates.
GOG games are DRM-free—you can back up installers and play without the client after installation.
Note: GOG keys are typically global. Some titles may have connectivity requirements for online features.
Nintendo (Switch / eShop)
Nintendo eShop codes work on Nintendo Switch. Redeem via the console or Nintendo website.
On Nintendo Switch: Open the Nintendo eShop from the Home menu.
Select your user icon (top right), then scroll down and choose Redeem Code.
Enter the 16-character code. Format: XXXX-XXXX-XXXX-XXXX.
Click OK to confirm. The game or content is added to your library.
Alternatively, go to ec.nintendo.com/redeem, sign in with your Nintendo account, and redeem there.
Download the game from the eShop or from your Home menu after redemption.
Note: Nintendo codes are region-locked. Your Nintendo account country must match the code region. Gift cards (e.g. Nintendo eShop cards) may have different redemption flows.