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, the Underground Corruption has the Underground Crimson Music.

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

Contents[edit | edit source]

Underground Corruption
Characters Unique Drops
Devourer.png Devourer
World Feeder.png World Feeder
Cursed Hammer.png Cursed Hammer
Shadow Hammer.png Shadow Hammer Console VersionMobile only.png3DS logo.svg Console Version Mobile only.png
Clinger.png Clinger
Corruptor.png Corruptor
Corrupt Slime.png Corrupt Slime
Slimer.png Slimer
Corrupt Mimic.png Corrupt Mimic Desktop Version Desktop Version

From killed Corrupt Slime/Shadow Slime:

Slimeling.png Slimeling (3 spawn at once)
From Corrupt Slimes, Slimelings:
Blindfold.png Blindfold
Gel.png Gel

From Cursed Hammers:

Nazar.png Nazar

From Shadow Hammers: Console Version Mobile only.png

Cobalt Bar.png Cobalt Bar
Mythril Bar.png Mythril Bar
Adamantite Bar.png Adamantite Bar

From World Feeders and Clingers

Cursed Flame.png Cursed Flame
From Corruptors:
Rotten Chunk.png Rotten Chunk
Vitamins.png Vitamins

From Devourers:

Worm Tooth.png Worm Tooth

From Corrupt Mimics: Desktop Version

Dart Rifle.png Dart Rifle Desktop Version
Worm Hook.png Worm Hook Desktop Version
Chain Guillotines.png Chain Guillotines Desktop Version
Clinger Staff.png Clinger Staff Desktop Version
Putrid Scent.png Putrid Scent Desktop Version
Greater Healing Potion.png Greater Healing Potion
Greater Mana Potion.png Greater Mana Potion
From any enemy:
Corruption Key.png Corruption Key (1/2500 chance) Desktop Version
Corruption Key Mold.png Corruption Key Mold Console VersionMobile only.png3DS logo.svg (1/2500 chance) Console Version Mobile only.png
Soul of Night.png Soul of Night (1/5 chance)

From vegetation:

Deathweed.png Deathweed

From terrain:

Ebonstone Block.png Ebonstone Block
Ebonsand Block.png Ebonsand Block

From Fishing:

Ebonkoi.png Ebonkoi
Purple Clubberfish.png Purple Clubberfish

History[edit | edit source]

  • 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.
  • 1.2.3: Added biome specific stalactite variations.
  • 1.1: Introduced.
Biomes and Structures
Surface Layers Forest • Desert • Ocean • Snow • Jungle • Mushroom • Evil Biome (The Corruption • The Crimson) • The Hallow • Space
Underground Layers Underground • Cavern • Underground Snow • Underground DesertDesktop Version • Underground Jungle • Underground Mushroom • Underground Corruption • Underground Crimson • Underground Hallow • The Underworld
Special Biomes Meteorite • Granite CaveDesktop Version • Marble CaveDesktop Version • Spider Nest • Bee Hive • Dungeon • Lihzahrd Temple
Structures and Other Biomes Living Tree • Enchanted Sword ShrineDesktop Version • Floating Island • Underground Cabin • Chasm • Pyramid • Jungle Shrine • Living Mahogany TreeDesktop Version • Jungle SanctumMobile only.png • Ruined House • Heart ShrineMobile only.png