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The Crimson

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BiomeBannerCrimson.png
Two Crimson chasms.
For the underground hardmode variant of this biome, see Underground Crimson.

"Making the world bloody"

The Crimson is an evil biome with a red gore theme, in contrast to the dark purple wasteland theme of its counterpart, the Corruption. Every world will contain one of the two generated randomly (each with a 50% chance of occurring) or Desktop VersionConsole Version chosen by the player upon world creation. Both contain similar hazards and feature their own unique enemies, items, and blocks. The tools, weapons, and armor obtained via Crimson material generally have minor advantages over those obtained via Corruption materials. Crimson enemies tend to have slightly higher stats, such as health, defense, and damage.

The Crimson contains multiple chasms, extensions of the biome into the underground. Every chasm has an entrance on the surface and leads to a large, circular cavity, then branches off into small "fingers" which end with a Crimson Heart. Crimson Altars generally line the chasm's passages, appearing inside and around it. Chasms consist of Crimstone, which can be blown up by explosives or mined with a Nightmare/Deathbringer Pickaxe or higher.

Thorny bushes in the Crimson
Thorny bushes Growing in the grass

The Crimson spreads, meaning it slowly converts adjacent tiles to their Crimson variants. See below for details. Chasms, Crimson Altars, and Crimson Hearts will only appear upon world generation, and will not spawn in a Crimson area that has formed through spreading. If enough Crimson manages to take over a new area, then that area will eventually adopt the Crimson's theme music, background, and water color. For an area to be considered a Crimson biome, at least 200Console VersionOld-gen console versionMobile Version3DS Version / 300Desktop Version tiles of Crimson grass or Crimson blocks must be present. Thorny bushes will begin to sprout on the grass and will damage the player when touched.

Contents[edit | edit source]

See Underground Crimson for the content found during Hardmode in and under the Cavern layer.

Spread[edit | edit source]

Main article: Biome spread

The Crimson spreads itself, similar to the Corruption and the Hallow. This means that it slowly converts certain susceptible tiles that are in the vicinity of existing Crimson blocks. While its spreading capabilities are very limited during pre-Hardmode, it spreads much faster and more aggressively after defeating the Wall of Flesh. Defeating Plantera for the first time reduces the speed of the Crimson's spread by 1/2 (50%).

Crimson Desert[edit | edit source]

A Crimson Desert.

In Hardmode, Crimson spreads through Deserts, transforming them into Crimson Deserts. A Crimson Desert is fairly similar to a regular patch of Crimson: The theme music and enemies are the same, with the addition of:

Sand is replaced by Crimsand. Cacti drop ordinary cactus when cut, even though they have a different color. Waterleaf is not able to grow in Crimson Deserts. If a Crimson biome overlaps a Desert biome during world generation, Sand will be converted to Crimsand, but it will not spread until Hardmode.

Crimson Snow[edit | edit source]

Crimson Chasms found in Ice biome.

Like the Crimson desert, Crimson Snow biomes are created when a Crimson spreads into a Snow biome during Hardmode. Snow is not convertible, but Ice can be converted into Red Ice. Red Ice can be created during generation if a Crimson biome overlaps a Snow biome, but it will not spread until Hardmode.

Notes[edit | edit source]

  • Crimson can be created or spread artificially using Crimson Seeds, Vicious Powder, Blood Water, or the Clentaminator with Red Solution, obtainable from the Steampunker during a Blood Moon in Crimson worlds (she sells Purple Solution in a Corruption world instead).
  • As of version 1.4 of the game, it is possible to create an artificial Corrupt biome in a Crimson world without the use of another world. To do so, one must buy Corrupt Seeds in Hardmode from the Dryad while in a Graveyard.
  • Artificially creating a new Crimson biome requires at least 300 Crimson blocks. Although Corruption might replace Crimson at world generation, it does not prevent Crimson from being artificially created in a Corruption world, and vice versa. Spreading remains normal.
  • Any enemy in the Crimson or Underground Crimson has a 0.04% (1/2500) chance to drop a Crimson Key Desktop, Console, and Mobile Versions / Crimson Key MoldOld-gen console version3DS Version in Hardmode.
  • The Steampunker will only sell the Flesh Cloning Vat and Red Solution in a world that naturally generated with Crimson. Artificially creating a Crimson biome in a Corruption world will not cause her to sell these items.
  • Old-gen console version3DS Version Trees in the Crimson do not drop Acorns.

Tips[edit | edit source]

For elaborate strategies on surviving in the Crimson, including detailed gear recommendations, see Guide:Surviving in the Crimson.

  • Early on, determining whether a world contains Crimson is possible in the following ways:
IconCrimson.png IconHallowCrimson.png
The tree in world selection (on the right: during Hardmode)
  • Desktop, Console, and Mobile Versions During world generation, one half of the progress bar will be green, and the other half red (purple for Corruption worlds). Additionally, the bar on the inside will be yellow (lime green for Corruption worlds), representing Ichor. The step in the world generation process in which the Crimson is created is called "Making the world bloody" ("Making the world evil" for Corruption worlds). Also, a tree at the side of the world name in the world selection has one green/normal side and one red side (purple for Corruption worlds).

Music[edit | edit source]

These music tracks play while the player is in the The Crimson. Like most other tracks, they can be recorded with Music Boxes. On the Desktop version Desktop version, when Otherworldly music is enabled, tracks from Terraria: Otherworld will play instead.

Title Music Box Listen Description
Crimson Music Box (Crimson)Music Box
(Crimson)
Desktop, Console, Old-gen console, and Mobile Versions
An unnerving, dark, and unsettling theme with a faster pace than that of the Corruption. Its main melody comes near the end of the track.
Crimson (Otherworldly) Otherworldly Music Box (Crimson)Otherworldly Music Box
(Crimson)
Desktop Version
A dark, ambient track which seems to feature some type of contrabass brass instrument for a 'gloomy' feeling and eventually becomes almost psychedelic-sounding.

Trivia[edit | edit source]

Two Crimson chasms overlapping each other.
Crimson logo with Blood Crawler displayed on the Official Terraria Forums (Crimson style)
  • Occasionally, two chasms might overlap, causing a sort of "cross" or "X" pattern, as seen in the image to the right.
  • Because of the large circular cavity, its out-warding branches, and the entrance tunnel cutting at sharp angles, the chasm could be interpreted as a cartoon-like hand, or a heart connected to veins.
  • The entrance of the chasm has teeth-like stalactites and stalagmites, and could be interpreted as the entrance being the mouth of a beast.
  • The interpretations of the above-mentioned trivia notes would make sense with the Crimson's gore like theme.
  • Many Crimson enemies have deformed features or blisters that resemble cancerous growths. This contrasts with the rotten bodies of many Corruption enemies, sometimes with green pus dripping out of them.
  • During a Blood Moon, three critters turn Vicious (Vicious BunnyDesktop, Console, and Mobile Versions, Vicious GoldfishDesktop, Console, and Mobile Versions, and Vicious PenguinDesktop, Console, and Mobile Versions), a reference to the Crimson. They can also manually be turned Vicious with Vicious Powder.
  • Official Terraria Lore – According to the official game lore, the Crimson is a living being who wants to balance the world, and the creatures who come from it used to worship the Crimson. It acts like a hive mind connected to all worlds. The being itself is unseen.
    • Based on this, it appears likely that Crimstone is this massive being's flesh. This is supported by its appearance, as well as the fact that the item used to craft items with it is called the Meat Grinder.
  • If you use the seed 05162020 in 1.4, you'll have both the Crimson and Corruption in the same world, along with Living Trees having Moon Lord Legs and Red Potion inside their chests.
  • The crimson could be a reference to the corruption bacteria from the Dead Space series.
  • Crimson lore.png

    • The shade of Crimson grass appears to be almost the exact same shade as inverted Hallowed grass.
    • Old-gen console version The achievement "Corruptible" refers to the Corruption. However, the Crimson appears to have no Crimson achievement equivalent.
    • In the Desktop version Desktop version, the Surface Crimson Biome can sometimes show a crimera floating in the background.

    See also[edit | edit source]

    History[edit | edit source]

    • Desktop 1.2.3: Crimson Deserts now have the proper water color. Added unimplemented crimson monster sounds.