Clay is a 物块 type mainly used as a 制作材料. It is found primarily in 地表-level (above 0 elevation) areas, and is more rare at the upper parts of the 地下. Because of this, the largest deposits of Clay can be found simply by exploring the Surface for differently-colored patches in the 土.
- Clay can be a natural blocker of the 腐化, 猩红 or 神圣. All 3 biomes cannot spread through Clay and it can thus make a natural barrier against spreading.
- 1.2：Stack limit increased from 250 to 999 and Red Stucco added.