Skeleton Fort

Skeleton forts are naturally generating island locations inhabited by undead skeletons of varying types who are trying to defend the fortress vault. When you are within range of a skeleton fort, you will hear a ominous thunder.

=Generation= Skeleton forts are semi-rare, generating every several hundred to couple thousand blocks. This makes them rarer than outposts. They never generate close to, or within, outposts.

=Mobs= Both regular undead skeletons and a skeleton captain can continuously spawn in fortress. A skeleton captain drops a disposable key upon death, which can be used to open the vault.

=Structure= A skeleton fort consists of a vault with a couple of watchtowers around it and a wooden cage, which sometimes has a guard imprisoned inside.

=Loot= A skeleton fort is fairly profitable, with the vault hiding away gems. The fortress also contains a handful of various other items, such as gunpowder barrels.