I can't see if this has been asked before, but I'm surprised if it hasn't... or maybe the answer is just very obvious! Anyway, with these Splinter Cell and Batman free game codes I've just got with my new GTX 670, can I add these games to Steam and use just as any other game I have on my Steam account? These games are obviously on Steam, so aren't non-Steam games, but the card tells me to download from the GeForce website. Will I be able to integrate these games into Steam after I download?