What Blocks Can Get Corrupted in Terraria? A Comprehensive Guide
The ever-present threat of the Corruption, Crimson, and Hallow biomes in Terraria is a major concern for players. Understanding how these biomes spread, and which blocks are susceptible to their influence, is crucial for base building, biome management, and overall survival. So, what blocks can get corrupted? Primarily, the spread focuses on a few key materials. The main blocks that can be converted by Corruption and Crimson are:
- Stone: This is one of the most common blocks and is very susceptible to corruption. The standard Stone will be converted into Ebonstone by the Corruption or Crimstone by the Crimson.
- Sand: Like stone, Sand is readily converted into Ebonsand by the Corruption or Crimsand by the Crimson.
- Hardened Sand: Similar to regular sand, Hardened Sand is also corruptible and becomes Corrupted Hardened Sand or Crimson Hardened Sand.
- Sandstone: Just like Sand and Hardened Sand, Sandstone transforms into Ebonsandstone or Crimsandstone when corrupted or crimsoned respectively.
- Smooth Sandstone: This block, crafted from Sandstone, can also be corrupted to Ebonsandstone or Crimsandstone.
- Ice: Ice is converted to Purple Ice in the Corruption or Red Ice in the Crimson.
- Dirt: While not immediate, Mud will eventually convert into Dirt, and this Dirt can be corrupted into Corrupt Dirt or Crimson Dirt (this process becomes quicker after defeating the Wall of Flesh).
- Grass: Grass will be converted to Corrupt Grass or Crimson Grass if the above base blocks are converted. Jungle Grass is particularly vulnerable.
- Snow: Another soft block that is highly susceptible, Snow turns into Corrupt Snow or Crimson Snow.
- Mud: While not directly corrupted, Mud will eventually turn to Dirt which can then be corrupted.
- Thorns and Vines: Thorns and vines that grow from corrupt or crimson grass will also spread the respective biome.
- Stone Brick/Slab: In expert mode, these are susceptible to corruption/crimson spread.
- Placed/Living Wood: In expert mode, these are susceptible to corruption/crimson spread.
It is crucial to understand that the biome spread operates within a radius of three tiles from existing corrupt or crimson blocks. Understanding this distance is key to creating effective containment measures. It’s also worth noting that the Hallow works in a similar manner, converting susceptible blocks to their Hallow counterparts (e.g., Pearlstone for Stone, Pearlsand for Sand).
Frequently Asked Questions (FAQs)
Here are 15 frequently asked questions to provide even more clarity on the subject of block corruption in Terraria:
1. Which Blocks are Immune to Corruption and Hallow?
Many blocks are immune to the spread of Corruption, Crimson, and Hallow. These include:
- Wood
- Clay Blocks
- Ash Blocks
- Silt Blocks
- Obsidian
- Ores
- Gems
- All Bricks (with the exception of Pearlstone, which will spread the Hallow).
- Grey Bricks
2. Why is the Jungle so Vulnerable to Corruption Spread?
The Jungle is particularly vulnerable because it relies on Mud as its primary block. Since mud eventually turns to dirt, and dirt is corruptible, it makes the Jungle an easy target for the spread of Corruption/Crimson.
3. Can I Use Clay as a Barrier Against Corruption?
Yes, Clay is an excellent natural blocker. The Corruption, Crimson, and Hallow cannot spread through it, making it a great material for creating barriers around your base or other important areas.
4. Do Sunflowers Really Stop Corruption Spread?
Sunflowers provide a small area of protection. They prevent the two tiles directly beneath them from being converted. They also reduce the corruption rating in the area around them, but this only works in a limited capacity.
5. Does Breaking Altars Spread Corruption?
Yes, each time you break a Demon Altar or Crimson Altar, there is a chance that a random Stone Block in the Cavern layer will be converted to Ebonstone, Crimstone, or Pearlstone, which does facilitate the biome spread.
6. What is the Rarest Block in Terraria and Is it Corruptible?
The Dirtiest Block is considered the rarest and serves as a pet-summoning item and it cannot be corrupted.
7. Can Walls be Corrupted?
Walls themselves cannot spread the Corruption, Crimson, or Hallow. However, some cave walls do visually change in appearance in proximity to the biomes. The actual blocks behind them don’t change.
8. How Many Blocks Can Corruption Spread?
The main spread happens within a radius of 3 blocks. However, Thorns from corrupt or crimson grass can grow up to 6 blocks in all directions.
9. Is it Better to Have Crimson or Corruption?
This depends on player preference. Corruption is generally considered easier to deal with initially but has less powerful loot, whereas Crimson has more powerful drops in Hardmode but has difficult enemies to deal with early game.
10. Can NPCs Live in the Hallow?
Yes, NPCs can live in the Hallow without any issues, unlike the Corruption or Crimson. It can even be beneficial to have your base in the Hallow to prevent evil biome encroachment.
11. Can the Hallow Overcome the Corruption?
The Hallow is an anti-Corruption biome, and they can fight for territory. However, both biomes can still spread over each other albeit slowly.
12. How Can I Stop the Hallow from Spreading?
The best way to control the Hallow is to control the initial spread by making sure no corruptible blocks are within 3 blocks of it.
13. How Do You Quarantine Evil Biomes?
The best method is to dig a tunnel that is 3-6 blocks wide completely around the area of the evil biome. This isolates them.
14. Do Ebonstone Bricks Spread Corruption?
Ebonstone Bricks do not spread the corruption. They are safe to use for building.
15. Can Corruption Spread Through Stone Slabs?
In Expert Mode, yes, placed and living wood and stone brick/slab are corruptible, and this can be a significant factor when planning your base layout in higher difficulties.
Understanding which blocks can be corrupted in Terraria is essential for long-term success. By knowing the mechanics of biome spread, you can create effective countermeasures and maintain control of your world. Use the information and FAQs above to inform your strategies and stay safe in your adventures!