Using Kamui Stone and Kamui Void

What the Blocks Do

Kamui Stone and Kamui Void are the two Kamui-related blocks in the registry. They are placed blocks, not items you swing. Kamui Stone reads as solid terrain; Kamui Void reads as empty space. Together they let you build passages that look like solid rock from one side and open air from the other.

Building a Hidden Passage

Place a wall of Kamui Stone where you want the entrance to appear solid. Behind it, carve the actual tunnel and line the opening with Kamui Void. From outside, the wall looks intact. From inside the tunnel, the Kamui Void gives you a clear path through. This is the standard trick for hiding a base entrance or a stash room behind what looks like ordinary stone.

Pairing With Other Blocks

Shadow and Waterwall are the other placeable blocks in the registry and work well alongside Kamui construction. Use Waterwall to block a corridor with water, and Shadow to darken a room so the Kamui Stone face is harder to spot. Paper Bomb is the block to place if you want a trap at the end of a Kamui tunnel — lure a pursuer through the Kamui Void gap and detonate the Paper Bomb behind them. Keep Kamui Stone stocked; you will burn through it fast on large builds.