Christmas Castle Defense Decorated and ready for the holiday, prepare the Christmas castle defense and don't let the invaders in. Kill the incoming waves and protect the kingdom. There are a lot of gifts inside, which should be defended. Rather than cannons and towers all around surrounded by turrets, use the Mouse as if using magic to attack the invaders. Click and hold to toss them far away and kill the peasants. Now and then the accumulated points may be useful for casting special attacks, but those may not always be at hand to survive the next levels, always getting harder than the previous ones.