Underground Crimson

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BiomeBannerUnderground Crimson.png
See also: Crimson

The Underground Crimson 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 Crimson, and appears at and below the cavern layer. It operates similarly to surface Hardmode Crimson, being comprised of Crimstone and Crimsand, though it spawns different enemies. Underground Crimson spreads just like surface Crimson, and similarly can not spread to The Hallow (nor to Underground Hallow). Additionally, small pockets of Underground Crimson can be created through the breaking of Crimson Altars, which can convert a single random stone block in the world into Crimstone upon their destruction.

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

A player is considered to be in an Underground Crimson biome when there are at least 200 crimstone/crimsand blocks near the player.

All enemies killed in the Underground Crimson have a chance to drop a Soul of Night.

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

Contents[edit | edit source]

Underground Crimson
Characters Unique Drops
Blood Jelly.png Blood Jelly
Blood Feeder.png Blood Feeder
Ichor Sticker.png Ichor Sticker
Floaty Gross.png Floaty Gross
Crimson Axe.png Crimson Axe

From Blood Feeders:

Blood Feeder Banner.png Blood Feeder Banner

From Blood Jellies:

Blood Jelly Banner.png Blood Jelly Banner

From Crimson Axes:

Crimson Axe Banner.png Crimson Axe Banner
Nazar.png Nazar

From Floaty Grosses:

Floaty Gross Banner.png Floaty Gross Banner
Meat Grinder.png Meat Grinder
Vertebrae.png Vertebrae
Vitamins.png Vitamins

From Ichor Stickers:

Meat Grinder.png Meat Grinder
Ichor.png Ichor

From any enemy:

Soul of Night.png Soul of Night (1/5 chance)
Crimson Key Mold.png Crimson Key Mold (1/2500 chance)

From terrain:

Crimstone.png Crimstone
Crimsand Block.png Crimsand Block
Deathweed.png Deathweed

From fishing:

Crimson Tigerfish.png Crimson Tigerfish
Hemopiranha.png Hemopiranha

History[edit | edit source]

  • 1.2.4: Now has its own specific theme music.
  • 1.2.3: Added biome specific stalactite variations.
  • 1.2: Introduced.
Game mechanics
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