Dungeon

The Dungeon is one of the highest level "biomes" in the game. It is either on the right or the left side of the map and can be in a variety of colors, including green, pink, purple, and blue. The game randomly generates the color of the bricks when the world is first created.

There is an old man guarding the entrance. If you talk to him during the night he will turn into Skeletron. You should not enter the dungeon until Skeletron has been defeated. If you try to enter without having defeated him, multiple Skeletron skulls will appear once you reach a certain underground level inside the dungeon. These skulls will act like Skeletron and do their spinning attack. During the day, the skulls will instantly kill you, but at night the skulls will do the same damage as the skull of Skeletron would normally do.

Inside the dungeon are certain dungeon only items found in chests. There is a high chance of finding chests and life crystals in the dungeon. Books, water candles and spikes can also be found here. They can be looted with a hammer and used as decorations for your home.