One of our flagship plugins is the Bloodmoon. It is a randomly occurring event in which the mobs become much stronger, spawn a ton more, and gain the ability to break certain blocks to get you and kill you. During a bloodmoon you will be locked in the world. So be wary about adventuring to the end, or you might just be signing your own death warrant. On the plus side experience drops are increased. Newer players are recommended to stay within town limits during one. Experienced players should take time in setting up proper home defense. Mobs have been known to reduce a home to rubble in minutes. Protect your home with strong block types.