At last! The Blue-blooded Ghostly Companion’s Brand New Accessory for Improved and More Efficient Monster Hunting is finally here! Esteemed ladies and gentlemen, allow us to present Mr. Van Helsing’s charming, beautiful and witty aide: Lady Katarina, who doesn’t really require any further introduction.
Open the Steam client, login and locate the Games tab on the top menu. Click this and then select “Activate a Product on Steam…”
Enter your unique code that's displayed on the 'Orders' page of CDKeys.com and follow the prompts to activate.
Your game is now viewable in the “Library” tab and is available to download/install when you’re ready. You can find additional support for the Steam client here: https://help.steampowered.com/en/wizard/HelpWithSteam