As with other naturally-placed walls, natural Dungeon Brick Walls can only be mined from one of their edges (meaning that the wall tiles to be mined must be adjacent to empty tiles or player placed walls). A single Dungeon will usually contain all three types in different areas in each area, the Faction Flags found will correspond to the wall variant.ĭungeon Brick Walls can be crafted (and converted into Dungeon Bricks), and can be freed and collected with a Hammer or Dynamite after Skeletron has been defeated. There are a total of 9 different variants, but each Dungeon can include only the three wall types matching that Dungeon's bricks. Dungeon Brick Walls are the background Walls found naturally-placed in Dungeons.