How to Eradicate Corruption in Terraria: A Comprehensive Guide
Clearing your world of Corruption in Terraria is a significant undertaking, but achievable with the right strategies. The most reliable method involves creating barriers and utilizing specific tools to convert corrupted blocks back to their natural state. It’s a battle against a spreading evil, but with patience and preparation, you can reclaim your world.
Understanding the Threat of Corruption
Before diving into the solution, it’s crucial to understand how Corruption spreads. It’s a biome that converts surrounding blocks into its corrupted form: Ebonstone, Corrupt Grass, and Ebonsand. Corruption also spawns unique, often dangerous, enemies. It spreads through grass, dirt, sand, and stone, and even through the vines and thorns that grow within it. The speed of spread increases after defeating the Wall of Flesh and entering Hardmode. Left unchecked, the Corruption can overtake your world, hindering resources and creating hazardous environments.
The Key to Eradication: Strategic Barriers and Conversion
Digging Hellevators
The cornerstone of Corruption eradication is the strategic creation of Hellevators. These are vertical shafts that run from the surface to the Underworld. The ideal distance between each Hellevator is between 120 to 190 blocks. This ensures that the area targeted by the Clentaminator or Terraformer can fully encompass the affected areas. Here’s how to effectively use them:
- Plan your routes: Decide where you want your Hellevators, considering existing structures and areas you wish to protect.
- Dig deep: Create shafts that go all the way down to the Underworld. This creates a clear pathway for your conversion tools.
- Glide and spray: Use Wings or a Featherfall Potion to control your descent while spraying the Clentaminator or Terraformer along the way. Focus on converting the Corrupted blocks to either pure grass, Hallow, or another biome.
Utilizing the Clentaminator and Solutions
The Clentaminator, purchased from the Steampunker NPC, is your best friend in this battle. It sprays solutions that convert blocks:
- Green Solution: Converts blocks to the standard, pure forest. This is generally the desired outcome when eradicating Corruption.
- Blue Solution: Converts blocks to the Hallow biome, which is an alternative solution that, while not “pure,” prevents Corruption spread.
- Red Solution: Converts blocks to the Crimson biome (if your world has the Crimson).
- Purple Solution: Converts blocks to the Corruption biome.
Early Game Solutions: Lava and Sunflowers
In early Hardmode, before acquiring the Clentaminator, you can utilize other methods:
- Lava: Pouring a block of lava on the surface can burn any corrupt grass, slowing the spread. This is more effective for Crimson, but still useful for delaying the Corruption. However, this method is not permanent and only mitigates surface spread.
- Sunflowers: Place sunflowers strategically as each decreases an area’s total Corruption rating by 5 tiles. Crucially, the two tiles directly under a sunflower cannot become Corrupted, preventing the initial conversion of grass.
Trench Warfare: Building Protective Barriers
Digging protective trenches is another crucial step in Corruption control. The trench should be at least three blocks wide (six is recommended) and encircling the existing Corruption. This prevents the Corruption from spreading outwards. These barriers, coupled with the Hellevator conversion technique, are effective in managing the spread.
Frequently Asked Questions (FAQs)
1. Can walls spread Corruption?
No, Corruption does not spread through walls. The wall conversion is purely visual, occurring within an approximate 8-block radius of converted blocks. However, vines and thorns that grow on converted blocks can spread Corruption.
2. Does breaking altars spread Corruption?
Yes. Each time you break an altar, there’s a 66.67% chance that a single random Stone Block in the Cavern layer will be converted to Ebonstone. This facilitates the spread of the Underground Corruption.
3. How many Corruption blocks are needed to create a new biome?
Creating a new Corruption biome requires at least 200 Corrupted blocks.
4. What if I have a Crimson world, can I get Corruption?
Yes, as of version 1.4, you can buy Corrupt Seeds from the Dryad in a Hardmode Graveyard to start a Corruption biome in a Crimson world.
5. Can stone walls be corrupted?
Yes, certain stone walls can be corrupted visually. Mottled, Fractured, Worn, and Stalactite Stone Walls can convert to Corrupt variants, further adding to the visual effect of Corruption.
6. Can the mushroom biome be corrupted?
No, neither Corruption nor Hallow can convert Mushroom grass blocks. This makes them a safe haven against biome spread.
7. Can NPCs live in the Hallow?
Yes, unlike Corruption and Crimson, NPCs can live in the Hallow. It’s often recommended to have a Hallowed base to stop evil biomes from spreading towards it.
8. What do Corrupt Seeds do?
Corrupt Seeds, when planted on Dirt Blocks, create Corrupt grass, allowing for the spread of the Corruption.
9. Does the Dryad sell Corrupt Seeds?
Yes, the Dryad sells Corrupt Seeds during a Blood Moon in a world with Corruption, and also in a Hardmode Graveyard in a Crimson world.
10. Is the Clentaminator the only way to spread or remove Hallow, Corruption, and Crimson?
While the Clentaminator is generally the fastest method, you can also use Holy Water to create Hallow or use Purification Powder to remove Corruption in smaller areas, although both are less efficient.
11. What is the “V” that generates in Hardmode?
Upon entering Hardmode, two diagonal stripes in a “V” pattern will generate in your world. One stripe converts blocks to Hallow, and the other converts them to either Corruption or Crimson, depending on your world’s evil biome.
12. Is the Hallow as dangerous as the Corruption?
The Hallow is generally considered less dangerous than the Corruption or Crimson in Hardmode. Its enemies, although challenging, are often less aggressive, and the biome doesn’t hinder the player as much as the Corruption.
13. How can I prevent the spread of Corruption from Reddit?
A common strategy from Reddit users is to use bombs and dynamite to blast large areas of Corruption. This prevents the spread by eliminating the Corrupted blocks altogether. This is best used at the start of Hardmode to get ahead of the spread.
14. Can you fight the Eater of Worlds in a non-corrupted biome?
No, the Eater of Worlds must be fought within the Corruption. Leaving the biome will cause it to despawn.
15. Can you fight the Brain of Cthulhu in a Corruption world?
Yes, but only if you create an artificial Crimson biome within your Corruption world. The Bloody Spine can then be used to summon the Brain of Cthulhu.
Conclusion
Eradicating Corruption is an intensive but rewarding process. Utilizing Hellevators, the Clentaminator, strategic barriers, and early-game solutions like lava and sunflowers, players can effectively reclaim their Terraria world. Remember to be patient and persistent; the battle against Corruption is a marathon, not a sprint. With the right tools and strategies, you can keep your world pristine and enjoyable.