The Crimson

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Pc only.png Console only.png PC/Console-Only Content: This information (or parts of it) applies only to the console and PC version of Terraria.
Two Crimson chasms.
See also: Underground Crimson

"Making the world bloody..."

The Crimson is a hazardous surface biome that presents a red gore theme. It may exist somewhere in a generated world, generally far from a player's original spawn point. It is the counterpart to the Corruption biome's diseased wasteland theme. A generated world will contain only one of the two, chosen at random during world creation, each with a 50% chance of occurring. The two contain similar hazards, though the Crimson is often considered by players to be the more difficult of the two. Each have their own unique respective enemies, items, and blocks. The tools, weapons and armor obtained via Crimson materials have minor advantages over those obtained via Corruption materials. New players should avoid The Crimson due to its difficulties.

As with the Corruption, the Crimson contains multiple Chasms, deep pits in the ground that lead to underground tunnels. Unlike the Corruption's vertical drops, the chasms in the Crimson cut at angles into the terrain, lead to large circular cavities, then branch off into smaller veins that lead to Crimson Hearts. Crimson Hearts are the Crimson counterpart to the Corruption's Shadow Orbs, and can be destroyed to achieve various effects that advance gameplay (see Crimson Heart for details).

Crimtane Ore can be collected in order to craft various advanced items, like the Corruption's Demonite Ore. Crimson Altars are found underground, which primarily come into play once a world enters Hardmode, though they also function as Crafting Stations for a few items; these operate identically to the Corruption's Demon Altars.

The Brain of Cthulhu is a Boss that can be encountered in the Crimson, and is the Crimson counterpart to the Corruption's Eater of Worlds; though it is slightly more difficult to defeat.

Crimson spreads in the same manner as Corruption, replacing Grass with Crimson grass, and in hardmode, replacing Sand with Crimsand, Stone Blocks with Crimstone, and the Underground Crimson is formed.


NOTE : View Underground Crimson for the mobs that spawn during Hardmode in and under the cavern layer.

The Crimson
Characters Unique treasures Unique drops For Sale

Blood Crawler.png Blood Crawler
Face Monster.png Face Monster
Crimera.png Crimera
Brain of Cthulhu.png Brain of Cthulhu (boss)

In Hardmode:
Herpling.png Herpling
Crimslime.png Crimslime
Blood Jelly.png Blood Jelly
Blood Feeder.png Blood Feeder

Crimson Desert:
Dark Mummy.png Dark Mummy

From Crimson Hearts:

In Hardmode:

From the terrain:

From fishing:

From the Painter:


Bug.png Bug : Saving and loading may cause corruption of worlds. This becomes a serious problem (especially in hardmode) since small/medium crimsons can generate in weird spots, EVEN the ones you purified.
Bug.png Bug : 1/4 of a Crimson Heart appears as a Shadow Orb.
Bug.png Bug : On Console, the Crimson Hearts would overlap with a Shadow Orb, Causing it to spawn the Eater of Worlds
Bug.png Bug : On Console, if you have a crimson world and you enter hard mode the underground corruption will spawn instead of the underground crimson


  • The step in world generation in which the Crimson is created is called "Making the world bloody." If you want a Crimson world, look for that step during creation.
  • Another way to know if your world has Crimson is to ask the guide. He will tell you to break a Crimson Heart if your world has Crimson, and he will tell you to break a Shadow Orb if world has Corruption.


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