It contains the easiest enemies and least powerful equipment.
The Dungeon Level is largely consists of stone. Some of which can be moss/vine covered, bricked, cobbled, or dilapidated. Plants commonly are commonly found along the ground and cobwebs hang from the ceiling along with glowing crystals. Sometimes wooden beams can be seen supporting the roof. There are also wooden corridors (see below).
The Dungeon level usually generates a sprawling system of caves. Frequently come by are large, water-filled rooms. These rooms generally serve as an intersection for other tunnels.Also generated are wooden corridors. It contains bedrooms, a dining room, and a library.