The Hardened Sand Wall variants are natural background walls found in the Underground Desert. Underground Deserts generate by default the normal Hardened Sand Wall which may be converted into Hardened Ebon-, Crim-, and Pearlsand Wall if exposed to the Corruption, Crimson, and Hallow, respectively. Converted Hardened Sand Walls may further spread conversion. See biome spread for more information. On the 电脑版、 主机版、和 移动版, all variants can be crafted.