A special application created exclusively for the "Asterocosmos", the Christmas village in Thessaloniki, Northern Greece. The app is for everyone to enjoy while visiting the Christmas village built within the Fair's premises. There are 10 achievements you have to unlock in order to be able to enter the competition to win awesome prize, by simply scanning the QR. The codes will be displayed at the main attraction spots inside the Fair. It is something like the QR hunting, but with a Xmas taste ;-).