Buildings

Place scaffolds in a square, then tap the square with the Hammer to build. Monsters attack buildings; repair costs half the build cost and restores full health.

	Building	Size	HP	Cost	Repair	Light	Function
	Workbench	1×1	8	12× Dirt, 10× Fiber	6× Dirt, 5× Fiber	-	Craft stone gear
	Forge	2×2	16	20× Stone, 10× Coal	10× Stone, 5× Coal	yes	Craft iron gear
	Altar	2×2	12	15× Stone, 3× Cloth, 2× Ectoplasm	8× Stone, 2× Cloth, 1× Ectoplasm	yes	Weave monster essence into scrolls
	Stone Wall	1×1	8	4× Stone	2× Stone	-	Blocks monsters; enclose dug ground
	Watchtower	3×3	30	30× Stone, 5× Iron	15× Stone, 3× Iron	yes	Far light; fires at monsters it sees

The campfire

Your base camp: if it dies, the run is over. It starts with 20 HP on the surface (12 at forward camps beside the deep stairs). Repair: 5× Dirt, 3× Fiber. Upgrades raise max HP by 10 and widen the light of the camp and every torch:

Camp level	Upgrade cost
Level 2	15× Stone, 10× Fiber
Level 3	10× Iron, 5× Coal

Torches have 4 HP and can be picked back up by tapping them.