The 15 Days of Christmas was a Christmas related event that began on 20 December 2013 and lasted for 15 days. Throughout the duration of the event, members were able to obtain festive crackers, which could be used on other players to open them, granting 1000 bonus experience to a random skill for both players, along with granting the original owner of the cracker a prize, through which the black santa hat could rarely be obtained.