The Crimson



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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 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 or mined with a Nightmare/Deathbringer Pickaxe or higher. 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 200 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.

Spread
The Crimson spreads itself, similar to the 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
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 Dark Mummies on the surface and, and  in the.

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.

Crimson Ice
In both Pre-hardmode and hardmode ,The crimson spreads through the ice biome,Spawning normal crimson enemies but also normal ice enemies and can still get debuffs such as Chilled and the Ice Slime.

Red Ice Block s are the crimsons version ice. Chasms will still exist if spawned in the snow/ice biome. Shiverthorn can be harvested in the snow crimson still.

Tips
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:
 * The Guide will tell the player to break a Crimson Heart (Shadow Orb in Corruption worlds).


 * 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 "" ("" 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).


 * In Expert mode, the Vampire Knives (obtained from opening a Crimson Chest) are highly useful in virtually all situations. However, the Crimson's boss accessory, the Brain of Confusion, pales heavily in comparison to its Corruption counterpart, the Worm Scarf, meaning that the two balance each other out.

Trivia

 * 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 Crimtane (,, and ), a reference to the Crimson. They can also manually be turned Crimtane with Vicious Powder.
 * The shade of Crimson grass appears to be almost the exact same shade as inverted normal grass.
 * The achievement "Corruptible" refers to the Corruption. However, the Crimson appears to have no Crimson achievement equivalent.
 * The achievement "Corruptible" refers to the Corruption. However, the Crimson appears to have no Crimson achievement equivalent.

History
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