Digital Keys (Bladestorm: Nightmare)

Well, I didn’t buy it, but usually everything is automatically registered in Steam, you just get a key. Although if you bought on some other site and they sent the key, then there is a game tab in the incentive and there is an item to activate the game

Well, I kind of clearly wrote what I bought in the incentive itself, I never buy games on the left sites, just if they are already registered, so what for, forgive them to enter?