Underground Hallow

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The Underground Hallow is a Hardmode Biome, being one of the biomes that spawns when the Wall of Flesh is defeated. It is the underground version of the surface-level Hallow, and appears at and below the cavern layer. It operates similarly to surface Hallow, being comprised of Pearlstone and Pearlsand; though it spawns different enemies, along with Crystal Shards, a common Hardmode crafting material. Underground Hallow spreads just like surface Hallow, and similarly can not spread to Corruption (nor to Underground Corruption).

Underground Hallow does not suppress the spawn of other underground and cavern enemies.

All enemies killed in the Underground Hallow have a chance to drop a Soul of Light.

Note: Most characteristics of surface Hallow apply to the Underground Hallow, with the exception of the enemies that spawn. See The Hallow for more extensive information.


Underground Hallow
Characters Unique drops

Illuminant Slime.png Illuminant Slime

Illuminant Bat.png Illuminant Bat

Chaos Elemental.png Chaos Elemental

Spectral Elemental.png Spectral Elemental Console only.pngMobile only.png

Enchanted Sword (NPC).png Enchanted Sword

from Chaos Elemental:

from Spectral Elemental:

from Enchanted Sword:

from any enemy with about 1/5 chance:

from any enemy with about 1/2500 chance:

From terrain:

From fishing:


  • 1.2.3: Added biome specific stalactite variations.
Game mechanics
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