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The Corruption

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BiomeBannerCorruption.png
May be confused with The Crimson due to in-game text ambiguations.
See also: Underground Corruption

The Corruption is a biome characterized by purple "corrupted" Grass and Trees, and hazards like Eater of Souls, Devourers, and Thorny Bush growth. New players will want to avoid The Corruption prior to acquiring better equipment (generally Silver or Gold Armor, Weapons and Tools). Corruption features a dark background with limited daylight, and unique theme music.

The Corruption area that generates initially with the World is home to Chasms that lead to Shadow Orbs and Demon Altars. Chasms represent an additional hazard to players due to Fall Damage, and players without a climbing aide like the Grappling Hook will have a tough or impossible time climbing out of them, should they survive the fall. Chasms are lined with Ebonstone, which can only be mined with a Nightmare Pickaxe or higher.

A typical structure of a corruption on a large map. Vertical chasms and horizontal caves are clearly visible (TEdit)

Corruption can also spread to areas not initially infected, and can be seeded by the player in new locations using Corrupt Seeds. Chasms, Shadow Orbs, and Demon Altars will not spawn in Corruption that has formed this way. Corruption enemies like the Eater of Souls, as well as Thorny Bushes, will spawn in spread or seeded Corruption. If enough Corruption takes hold in a new area, it will begin to feature the Corruption theme music, background and water color.

Purification Powder can be used on corrupted blocks to turn them into their regular counterparts. "Purified" blocks can still become Corrupted again afterwards.

Sometimes, there may be Crimson biome in a world instead of Corruption.

Contents

[edit] Contents

NOTE : View Underground Corruption for the mobs that spawn in Hardmode under the cavern layer.

The Corruption
Enemies Unique treasures Unique drops For Sale

Devourer Head.png Devourer
Eater of Souls.png Eater of Souls
Eater of Worlds Head.png Eater of Worlds (boss)

In Hardmode:
Clinger.png Clinger
Corruptor.png Corruptor
Seeker Head.png World Feeder
Corrupt Slime.png Corrupt Slime
Slimeling.png Slimeling (from Corrupt Slime)
Slimer.png Slimer

Corrupted Desert:
Dark Mummy.png Dark Mummy


From Shadow Orbs:

In Hardmode:

From vegetation:

From the terrain:


From the Painter:


[edit] Spread

In normal mode (pre-Hardmode worlds), corruption can spread, but only under limited conditions:

  • Corrupt grass can spread in a manner similar to normal grass, converting adjacent Dirt tiles with at least one side open to air (only in the Surface Layer).
  • Corrupt grass can also displace normal and hallow grass, unless the grass has a Sunflower planted on it.
  • Corrupt grass may sprout Thorny Bushes, which can spread corrupt grass according to the same rules.

Naturally-occurring corruption will often be halted by various natural barriers (stone, desert, etc.) before it is even discovered, but care should be taken when creating an artificial corruption biome that it does not spread further than intended.

[edit] Hardmode

Once the Wall of Flesh is defeated, a world enters Hardmode. New areas of Corruption and Hallow are immediately created that extend from the Underworld up to the Surface, sometimes intersecting existing Corruption. Corruption begins spawning more dangerous enemies, such as the Corruptor, and underground, the Clinger.

Corruption converting the jungle (TEdit)

Corruption spreads much more aggressively once the world is in hardmode:

  • In addition to corrupt grass, thorns and plants, Ebonstone, Ebonsand and Purple Ice also generate corruption.
  • Grass can still be converted to corrupt grass, and corrupt grass can cover new dirt as in regular mode.
  • Mud can now be converted into dirt.
  • Jungle grass can also be converted into corrupt grass (changing the underlying block type to dirt).
  • Stone can be converted to ebonstone.
  • Sand can be converted to ebonsand.
  • Ice can be converted to Purple Ice.
  • Corrupt grass is still limited to the Surface Layer, but ebonstone and ebonsand can spread through any depth.
  • Blocks that are up to three squares away from an existing corrupt block can be converted (even if uncorruptible blocks are in the way).

Corruption does not spread through other materials, even natural materials like clay and snow. Silt can be converted as part of the initial burst when you first defeat the Wall of Flesh, but not at other times.

In order to stop the spread of Corruption in Hardmode, the player must create a gap of at least three tiles containing empty space or non-corruptible blocks. Hallow blocks will also stop the spread of Corruption, but will spawn its own hazards as well.

[edit] Corrupted Desert

In Hardmode, Corruption spreads through Deserts, transforming it into Corrupted Desert. It is very similar to The Corruption: The theme music is the same, and enemies are the same, with the addition of Dark Mummies.

Sand is replaced by Ebonsand. Although their color is different, cacti still drop ordinary cactus when cut. Waterleaf is not able to grow in corrupted deserts.

[edit] Notes

  • The step in world generation in which the Corruption is created is called "Making the world evil." If you want a Corruption world, look for that step during creation.
  • When you cut trees in the Corruption, they will not drop Acorns.
  • Creating a new Corruption biome requires at least 200 corrupted blocks, such as corrupted grass, Ebonstone, Ebonsand or Purple Ice Blocks. Although the Crimson replaces the Corruption at world generation, it does not prevent Crimson from being artificially created, by importing Crimson materials to a world with Corruption and vice versa. Spreading remains normal.
  • In Hardmode, all enemies in the Corruption have a chance of dropping a Corruption Key Mold.
  • Once you hit the Underground layer, the music will switch to Underground Corruption.
  • Pc only.png The Clentaminator is an extremely useful tool for removing the corruption. Green Solution is recommended, unless you want to replace it with another biome entirely.
  • May be a reference to the corruption from Anti-Idle: The Game
Bug.png
Bug : On iOS, if corruption spawns in the middle of a desert, vultures can spawn on the corrupt grass.
Bug.png
Bug : On PC, on rare occasions, a corruption biome can spawn with a crimson biome.

[edit] History

  • 1.2.0.3:
    • The spread slows down to 33% of the hardmode speed after killing Plantera. However it will still convert all blocks as hardmode spread would.[1]
  • 1.2:
    • There is a chance for the corruption biome to be replaced with Crimson biome in a world on generation.
    • Bug.png
      Bug : Killing a hardmode boss reverts the spread back to normal mode speed.
    • Bug.png
      Bug : Red stucco spreads corruption, probably a typo, and ebonstone brick was supposed to spread instead.
  • 1.1:
    • Corruption spreads through Sand and Stone, and will slowly turn Mud to Dirt after the Wall of Flesh is destroyed. This allows it to spread into the Cavern layer.
    • An artificial Corruption biome now only requires 200 Ebonstone blocks instead of 500 blocks.
    • Now has own specific background.
  • 1.0.6:
    • Thorny Bushes in growing from Corruption are now destroyed on contact with the player.
    • The Corruption's music has been changed.
  • 1.0.5:
    • Corruption areas now have cave systems connecting many of the chasms.
    • Small to medium deposits of Demonite Ore can now be found when exploring the chasms.
  • 1.0.4: Number of chasms generated in the world is decreased, but each chasm now has 100% chance to spawn a Shadow Orb.
  • Pre-Release: Introduced.
  1. http://www.terrariaonline.com/threads/hallow-corruption-is-still-spreading-after-plantera-has-been-defeated.112586/#post-2343629


Environments
 
Forests • Deserts • Ocean • Jungle • Snow • The Corruption • Pc only.pngThe Crimson • The Hallow • Pc only.pngRain • Pc only.pngMushroom Biome
Underground • Cavern • The Underworld • Underground Jungle • Pc only.pngUnderground Snow • Underground Corruption • Pc only.pngUnderground Crimson • Underground Hallow
Dungeon • Meteorite • Floating Island • Pc only.pngGiant Tree • Pc only.pngSpider Nest • Pc only.pngPyramid • Pc only.pngBee Hive • Pc only.pngLihzahrd Temple