In terracraft we have many different enemies. Beyond that we have bosses too. Terracraft has currently 4 bosses. Current bosses present in terracraft:
Surface bosses
Snow Queen
Snow Queen is master of Aurora Palace, which is located in Snow biome. It can be summoned by destroying Snow Globe, which is located inside Aurora Palace.
Eye of Cthulhu
Eye of Cthulhu is eye-like boss which can be only summoned by using item called Strange Eye.
Underground bosses
Dungeon Eater
Dungeon Eater is worm-like boss which can be spawned in dungeon by using item with same name.
Nether bosses
Nether Destroyer
Nether Destroyed is for now final boss of terracraft. It is big, worm-like boss. It can be summomed by destroying Nether Altar, which is located in Nether Fortress.