Underground Corruption

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The Underground Corruption is a Hardmode biome. It is the underground version of the surface-level Corruption, and is initially created at and below the cavern layer once the Wall of Flesh is defeated. It operates similarly to surface Hardmode Corruption, being composed of Ebonstone and Ebonsand, though it spawns different enemies.

Underground Corruption spreads just like surface Corruption, and similarly can not spread through Hallow. Additionally, small pockets of Underground Corruption can be created through the breaking of Demon Altars, which can convert a single random Stone Block in the world into Ebonstone upon its destruction.

Underground Corruption does not suppress the spawn of other underground and cavern enemies. All enemies killed in the Underground Corruption have a 1/5 (20%) chance to drop a Soul of Night. In Expert mode, this chance increases to a 1/3 (33%) chance.

On the 3DS version 3DS version, the Underground Corruption music is replaced by the Underground Crimson music. Because of this, the Underground Corruption Music Box is unobtainable in the 3DS version 3DS version.

Note: Most characteristics of surface Corruption also apply to the Underground Corruption. See The Corruption.

Contents[edit | edit source]

Underground Corruption
Characters Unique Drops
World Feeder.pngWorld Feeder
Cursed Hammer.pngCursed Hammer
Shadow Hammer.pngShadow HammerOld-gen console versionMobile Version3DS version
Corrupt Slime.pngCorrupt Slime
Corrupt Mimic.pngCorrupt MimicDesktop VersionConsole Version
From Corrupt Slimes, Slimelings:

From Cursed Hammers:


From Fishing:

Purple Clubberfish.pngPurple Clubberfish

From Fishing during an Angler Quest:

From Corruptors:
Rotten Chunk.pngRotten Chunk

From Devourers:

Worm Tooth.pngWorm Tooth

From Corrupt MimicsDesktop VersionConsole Version:

Dart Rifle.pngDart Rifle
Worm Hook.pngWorm Hook
Chain Guillotines.pngChain Guillotines
Clinger Staff.pngClinger Staff
Putrid Scent.pngPutrid Scent
Greater Healing Potion.pngGreater Healing Potion
Greater Mana Potion.pngGreater Mana Potion
From any enemy:
Corruption Key.pngCorruption Key(from any enemy, 1/2500 chance) Desktop VersionConsole Version
Corruption Key Mold.pngCorruption Key MoldOld-gen console versionMobile Version3DS version(from any enemy, 1/2500 chance)
Soul of Night.pngSoul of Night(1/5 chance)

From Vegetation:


From Terrain:

Ebonstone Block.pngEbonstone Block
Ebonsand Block.pngEbonsand Block

From World Feeders and Clingers:

Cursed Flame.pngCursed Flame

History[edit | edit source]

  • Desktop Corruption chasms that extend into the underground layer are now classified as the Underground Corruption, complete with music. Unique enemies will not spawn pre-hardmode.

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