Steel blocks are obstacles in the game Turn-Undead.
Steel blocks are square shaped and coloured dark purple with a small bolt of the same colour placed in each corner.
Steel blocks are first found in level ten of Turn-Undead and are always lodged in walls. When the player fires a stake at steel blocks, the stake will be destroyed. In areas which they appear, steel blocks often force the player to find other alternatives to progressing farther by making stake ladders.