Board Thread:General Discussion/@comment-37117761-20191025154131/@comment-37117761-20191025171435

Update 2: The super-high dungeon only occurs in a small world. In a medium world, you can walk right up to the dungeon, but there's still a sizeable gap between the side of a hill and the side of the dungeon. In a large world, the dungeon is completely normal.

In a small world, the dungeon's entrance is high up regardless of the world's evil or whether Expert Mode is activated. However, in a corruption small world, there's a living tree between the spawn point and the dungeon that you either have to fly over or cut through. The crimson small world doesn't have this tree.