It's a key I recieved from the user SexOffender who won my previous giveaway of this same game. He won two different giveaways of this game and accidentally activated both of them (He was new on SteamGifts), so he bought a new one cause he thinks it's unfair for all the people that entered the previous giveaway. With that said, lots of thanks to him and enjoy the giveaway! :D