Giveaway contains two keys, being the guns of icarus soundtrack and costumepack from the Yogscast jinglejam bundle 2016. You can get the whole bundle and do something good here: https://www.humblebundle.com/yogscast-jingle-jam

I further have the key for the base game, that I will send to the winner, if he does not yet have the game. But if he has, the key will be gifted to the person making the best joke in a comment!