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  • I've been assuming that the Crimson spreads the same way as the Corruption and the Hallow, but I haven't done any real testing on it. I can't seem to keep my Crimson and Hallow contained, and I don't know why.

    Some questions (for Hard Mode):

    1. Which blocks can be converted to the Crimson/the Hallow/the Corruption?

    2. Which blocks cannot be converted?

    3. Which blocks spread the Crimson/Hallow/Corruption?

    4. Can the Crimson spread across walls?

    5. How many empty blocks are necessary to contain the Crimson?

    6. Is there a way to revert the Jungle after it has been corrupted?

    Background:

    After 1.2 was released, I created a new world for my existing character to play in. Before I defeated the Wall of Flesh, I spent quite a bit of time creating a bunch of firewalls to contain the Crimson and the Hallow. I made a firewall around each section of surface crimson. I made two H-shaped firewalls on either side of my house, and a firewall next to each of my oceans. I'd read that the Corruption couldn't spread to the Jungle or the Dungeon, so I left those alone. Each firewall was a 3-block wide hellevator, going from the surface to the Underworld. I left the walls as-is. I didn't bother replacing the blocks on the side because I thought the empty space would be enough. 

    Then I beat the Wall of Flesh and smashed 4-5 demon alters to give my world the new ore. When I found surface Hallow, I created new firewalls. Slowly, I noticed that my Underworld was being converted into Crimson Underground and Hallow Underground. I also found that the Hallow had spread (very slightly) across one of my firewalls. :-( I guessed that the crystals that grow in the Underground Hallow might count as a block, so I expanded all of my firewalls to 4 blocks. 

    Here's how I think some of this works in Hard Mode.

    The Crimson, The Hallow, and The Corruption all work basically the same way. (So, for the rest of this, I'm just going to refer to the corruption).

    1. The Corruption can spread through dirt, particularly if there's grass on it. The corruption also changes mud to dirt, sand to Ebonsand, stone to Ebonstone, and probably ash to Ebonstone. I think it can also use the stone stalagmites, hanging grass, stone moss, and crystals to spread.

    2. The Corruption cannot spread through placed, normal wood (although it can spread through trees). It can't spread through clay either. I don't know if it can spread through any of the bricks. I don't think it can spread through Dungeon Bricks. I doubt it can spread through asphalt, and I have no idea about the honey combs. I also don't know if it can spread through water.

    3. Ebonstone, Ebonsand, and dirt with Corrupt Seeds/Grass will spread the corruption. I don't think that Demonite spreads the corruption. I don't know if placed Ebonwood spreads the corruption.

    4. I think that the corruption can spread through removable-walls (even those placed at world creation). I can't come up with any other reason why the corruption seems to spread through big continous blocks. Or why there are some crimson colored walls after I've sprayed the crimson with green solution using the Clentaminator.

    5. I have no idea. I don't think it could spread across a column of 6 empty blocks with no walls, but I'm just guessing. Vile Spit doesn't spread the corruption anymore, so I don't think there's anything that would corrupt a totally segragated, pure set of blocks of stone, etc.

    6. I think the only way to get your Jungle Biome back is to purify the Corruption, then replace all the dirt with mud, then plant Jungle Seeds and let it grow. Yuck. It seems like all the other biomes can be fixed using the Clentaminator, which is weird.

    Any help or ideas would be greatly appreciated.

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    • I don`t think the jungle CAN be corrupted.

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    • Well, The Crimson spreads like the hallow does. Through ice, sand, grass, and stone. (There might be more.) But The Crimson does not have unholy water. Also The Hallow, The Corruption and The Crimson can spread through the jungle because the jungle has mud, but if the Hallow/Another biome spawns on it then some of it will be converted into dirt. You can also spread it through the underground jungle walls. And yes The Crimson can spread through walls.

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    • So, it sounds like The Crimson can spread to the Jungle through the Jungle walls? My Jungle was definitely bigger than it is now. I now have trees growing out of water (which I think can only happen in the Jungle) that have been corrupted by the Crimson. At least some of the mud in my Jungle seems to have turned to dirt, especially once I use the clentaminator to purify it. Maybe there was Jungle wall behind it, and that allowed the Crimson to convert the mud to dirt.

      That's a good point about there not being a way to spread the Crimson (like unholy water). It makes it hard to test how this stuff works, which is too bad.

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    • Givemepancakes wrote:
      I don`t think the jungle CAN be corrupted.

      Yes it can, the hollowed/corruprion/crimson will have the jungle turned into dirt when it decides to spread.


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    • Givemepancakes wrote: I don`t think the jungle CAN be corrupted.

      It can spawn with corruption in it. I find that extremely common

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    • Givemepancakes wrote:
      I don`t think the jungle CAN be corrupted.

      Actually yes it can. In hardmode if the corruption is next to the jungle it will actually transform mud jungle blocks into dirt and corrupt it. However the Hallow will not have the same effect.

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    • Givemepancakes wrote:
      I don`t think the jungle CAN be corrupted.

      The jungle CAN be corrupted

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    • I had the crimson spawn in my jungle once and I didn't get to see it spread but in the short time I was there by the time I left I noticed that it had spread. So I then, because I hadn't looked yet thought that the Crimson was a corruption of the jungle. I later learned it  wasn't

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    • For every demon altar you destroy, you spread some hallow and corruption/crimson. That can also spread it randomly through your containments.

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    • my Hallow spawned in my Jungle:(

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    • Gabs9996
      Gabs9996 removed this reply because:
      I made two of the same replies
      22:54, December 31, 2013
      This reply has been removed
    • The Jungle cannot be Hallowed but it can be corrupted

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    • Givemepancakes wrote:
      I don`t think the jungle CAN be corrupted.

      only hallow can't corrupt it

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    • I have noticed that in my world, the hallow IS corrupting my jungle. Also, I believe that the corruption and hallow slow down in spreading after you defeat plantera

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    • - Corruption cant spread through walls, though it corrupts them.

      - Breaking Altars creates a block of corruption in a random area

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    • Okay, I keep reading about how the Hallow is like the Crimson/Corruption, but the Crimson and Corruption are BAD things. So I'm totally wondering: Is the Hallow bad? Because rainbows, unicorns, and pixies make the Hallow sound like a REALLY fantastic place. Okay, so maybe unicorns and pixies are enemies in this game, but that's totally stupid. Unicorns are awesome! So anyway, can anyone answer my question? Thanks! :)

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    • RainbowSpaklez wrote:
      Okay, I keep reading about how the Hallow is like the Crimson/Corruption, but the Crimson and Corruption are BAD things. So I'm totally wondering: Is the Hallow bad? Because rainbows, unicorns, and pixies make the Hallow sound like a REALLY fantastic place. Okay, so maybe unicorns and pixies are enemies in this game, but that's totally stupid. Unicorns are awesome! So anyway, can anyone answer my question? Thanks! :)

      For me the Hallow AINT bad it's just that it looks easier than Crimson/Corruption.

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    • In IoS version Jungle can be corrupted, i found a corrupted jungle when i spawned .-.


      ...Were not still talking about that? Oh

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    • The Hallowed is just as evil demented as the corruption and the crimson is the worst! The monsters are harder in the crimson, while the corruption has good theme, doesn't get super demented! The hallowed does the same thing and I try to destroy the crimson and forces the corruption and hallowed back. I can tolerate the Hallowed and I CAN live in the corruption, but I can't stand the Crimson!

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    • The Crimson is pain in the side!

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    • I mean, is the Hallow a bad place. Not "Is it hard?"

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    • It iiiis supposely a good place, but in my opinion, it is just as bad as the corruption/crimson. The hallowed, is just the Hardmode version of the corruption/crimson.

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    • Which means, it does the same thing.

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    • Oh, and by the way, I find the corruption FUN. So quit complaining about your inabilities and purify it! (I find Clentaminators EXTREMELY useful.)

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    • Just because Hallowed is opposite to Corrupted (and effectively Crimson) on the "moral compass" (for lack of a better term), does not mean that either is inherently good or bad. One thing holds true for all three: they each have their own set of Hard Mode enemies, though the Hallow is not found naturally before Hard Mode is enabled.

      @RainbowSpaklez: Every biome can be a pain in the side, it doesn't mean that anyone's complaining about their own "inabilities". Even with my endgame equipment, I regularly find every biome to be a nuisance at some stage or another.

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    • I guess I can't deny that. :)

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    • They're all hostile biomes after all. :P

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    • Answers: 1. Stone, grass, mud (corruption only)

      2. Everything else

      3. Seeds, holy/unholy/crimson? Water

      4. How would it do that even

      5.no idea

      6.use clentaminator with green? Solution

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    • Slight error. Corrupt can spread through sand to

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    • And ice -_-

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    • Crystals cannot be corrupted.  The clentaminator can't fix jungles since the mud the jungle grass needs has been turned into dirt.  Ash does not change into ebonstone.  3 blocks are needed to contain the Corruption/Crimson/Hallow.  I hope that helped.


      PS:  There's a painting of the Hallow called "Land of Deceiving Looks."  That's the Hallow in a nutshell.

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    • Unless It is a Mushroom Biome

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    • I find the corruption fun but people who I asked all said bad, and corrupt from any game is demonted. But I prefer the corruption over the crimson anyways!

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    • Dude. Use. Hallow. Pet. UNICORNS!

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    • Dude! The corruption is better, It also has keys, that you need for the dungeon. Also, the only reason why I likes the Hallowed is because of the contents of Hallow Dungeon Chest AND Crystal Shards. On top of that! Any cursed flames you need is from the Corruption!

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    • I just keep my home in the Hallow.

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    • Slime Lord wrote:
      Dude! The corruption is better, It also has keys, that you need for the dungeon. Also, the only reason why I likes the Hallowed is because of the contents of Hallow Dungeon Chest AND Crystal Shards. On top of that! Any cursed flames you need is from the Corruption!

      The Corruption has Deathweed.

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    • Corruption SUKZ

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    • Hallow is waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay better

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    • RainbowSpaklez wrote:
      Okay, I keep reading about how the Hallow is like the Crimson/Corruption, but the Crimson and Corruption are BAD things. So I'm totally wondering: Is the Hallow bad? Because rainbows, unicorns, and pixies make the Hallow sound like a REALLY fantastic place. Okay, so maybe unicorns and pixies are enemies in this game, but that's totally stupid. Unicorns are awesome! So anyway, can anyone answer my question? Thanks! :)

      Actually the hallow is a good thing, well sort of. The dryad only requires the corruption to be cleased, and doesn't care if your world has went completely hallowed.

      I think that a gap from 3 blocks should block the spread of corruption/hallow as well as background, but I come to the thoughts that vines growing from the ceiling can spread it as well. I dug a tunnel out around my house so it can stay in the purity since i don't like having giant worms and shooting flying slimes around my spawnpoint. My hellavator is about 20 blocks inside a cave (also part of my protection tunnel) and some way the ceiling kept hallowing the bottom, until i blocked it off with a single row of wood. So since i dug a tunnel of 3 blocks high with a wooden ceiling it still keeps the corruption spreading into my purity area.

      There are also justs few blocks that can be corrupted/hallowed. Any type of brick cant be changed, even the stone bricks (still weired since the the normal stone CAN be affected).

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    • Or use clentaminator

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    • Actually, the Dryad notes the Hallowed, Crimson, and Corruption in the same world, but the console dryad ignores the crimson.

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    • The corruption can be stopped with 3 block thick layer blocking the purity.

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    • The Pathogen
      The Pathogen removed this reply because:
      Completely unrelated to the thread in question.
      17:31, September 30, 2014
      This reply has been removed
    • You know that has nothing to do with the conversation?

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    • 3nd3r3p1qat6019EX wrote: Slime lord i have a tizona on mobile.

      Ok? Please try to keep your replies on-topic.

      Slime Lord wrote: You know that has nothing to do with the conversation?

      I agree.

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    • Once you've defeated the Wall Of Flesh(WoF) your Hallow should generate on the opposite of your Crimson/Corruption.

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    • I had a Crimson in my Terraria world, and now that it's gone, Palladium is least favourite ore, IT LOOKS SO MUCH LIKE CRIMSTONE!

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    • Ik, but spelunker potions help tell the difference betwwen crimstone and palladium, so next time, when you knows the crimson is removed in that zone, use the spelunker potion. Also, wood works a wonderfull magic on blocking the corruption/crimson/hallow.

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    • Thx

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    • Bubbakill7 wrote: I have noticed that in my world, the hallow IS corrupting my jungle. Also, I believe that the corruption and hallow slow down in spreading after you defeat plantera

      No hallow isnt,

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    • Slime Lord wrote: Actually, the Dryad notes the Hallowed, Crimson, and Corruption in the same world, but the console dryad ignores the crimson.

      Nope, console dryad counts crimson and corrupt in same % I would know, my world is crimson

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    • the jungle + ice biome cannot be corrupted, therefore I don't think 100% of your world can be corrupt/hallow.

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    • I find the Hallow better, unlike the bloody disease called the Crimson and the demonic possession called the Corruption, NPCs will not move out if it spreads to their house.

      It also doesn't cause recurring blood moons. If the Hallow occupies your village, you don't need to worry about either the Corruption and Crimson taking over. Also, Pixies and Unicorns are much easier to deal with than Corruptors and all the Crimson monsters.

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    • KamiOfWind wrote:
      I find the Hallow better, unlike the bloody disease called the Crimson and the demonic possession called the Corruption, NPCs will not move out if it spreads to their house.

      It also doesn't cause recurring blood moons. If the Hallow occupies your village, you don't need to worry about either the Corruption and Crimson taking over. Also, Pixies and Unicorns are much easier to deal with than Corruptors and all the Crimson monsters.

      7 blocks of [block that cant be converted here] inbetween the [insert spreading biome here] and [insert the place you don't want it to spread to here] will stop the [insert spreading biome here] from spreading

      (sorry quoted wrong comment)

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    • when the new biomes are generated, they go DIAGONALLY toward the underworld, so they may have passed your "firewalls".

      When you smash an altar, a single random block in your world will convert to either corruption/crimson or hallow.

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    • my second response answers question 5, by the way

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    • Question 1 Answer: Living blocks, such as grassy dirt, normal dirt, vines, trees. Stone, sand. Silt/slush in the initial "Burst" after WoF is defeated.

      Q2A: Ores, wood as long as it isn't a tree, nonliving blocks. Crimson can't spread through Hallow and vise-versa, same with Corruption.

      Q3A: Crimson/Corruption and Hallow pretty much spread themselves, they just spread through blocks next to them. Rest of the answer is same as #1.

      Q4A: Crimson/Corruption does spread through background walls, but again same walls as in #1, Jungle wall, stone wall etc.

      Q5A: 3-4 blocks wide minimum, but because vines spread those biomes you either want at least a ten block gap or something blocking the way so vines cannot grow.

      Q6A: No, unless they decide to create something to add in-game to return the Jungle. (Brilliant idea alert: Light-Green Solution - for use with Clentaminator, spreads Jungle biome. Make this happen, 505 Games!)

      And ummm, this thread was started almost 3 years ago... Shouldn't it be closed by now???

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    • If it was made almost 3 years ago, then why did you respond to the questions?

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    • ... Because other people kept responding? Sheer boredom? A powerful compulsion to do so? Probably just to close out the thread in a stay-on-topic way.

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    • Just saying, hallow spawns where ever the wall of flesh is defeated.

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    • FloccinaucinihilipilificationGaming wrote:
      Just saying, hallow spawns where ever the wall of flesh is defeated.

      No, it doesn't. The Hardmode biomes always spawn in a diagonal strip that forms a V shape. The side where the Hallow spawns is random...

      You replied to a 2013 thread with the last post from 2016 just to say that?

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    • Gabs9996 wrote:
      RainbowSpaklez wrote:
      Okay, I keep reading about how the Hallow is like the Crimson/Corruption, but the Crimson and Corruption are BAD things. So I'm totally wondering: Is the Hallow bad? Because rainbows, unicorns, and pixies make the Hallow sound like a REALLY fantastic place. Okay, so maybe unicorns and pixies are enemies in this game, but that's totally stupid. Unicorns are awesome! So anyway, can anyone answer my question? Thanks! :)
      For me the Hallow AINT bad it's just that it looks easier than Crimson/Corruption.

      In hallowed desert there is no antlion.

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    • wood cant be corrupted

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    • Bubbakill7 wrote:
      I have noticed that in my world, the hallow IS corrupting my jungle. Also, I believe that the corruption and hallow slow down in spreading after you defeat plantera

      It is true that when plantera is defeated the spread will decrease, it will decrease by 33% percent, it is like on the plantera page.

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    • RainbowSpaklez wrote:
      Okay, I keep reading about how the Hallow is like the Crimson/Corruption, but the Crimson and Corruption are BAD things. So I'm totally wondering: Is the Hallow bad? Because rainbows, unicorns, and pixies make the Hallow sound like a REALLY fantastic place. Okay, so maybe unicorns and pixies are enemies in this game, but that's totally stupid. Unicorns are awesome! So anyway, can anyone answer my question? Thanks! :)

      The Hallow isn't neccesarily BAD, it's just slightly undesirable. It is a lovely place to be in due to the environment, which makes it preferrable over the Crimson and Corruption, and is by far the best way to remove Corruption. Simply purifying the Corruption will take much longer, and much more purification powder (therefore more money spent). Spreading the Hallow near your Corruption will spread INTO the corruption, battling it (with your help of course) and creating a much more asthetically pleasing biome. Unfortunately, in Crimson worlds you will have to purify it due to the fact that the Hallow doesn't spread into the Crimson. So, answering your question, the Hallow is a biome just like any other; with enemies to fight, a unique soundtrack, and unique resources. It has roughly the same difficulty to survive in as Corruption and Crimson (with some exceptions), but NPCs won't move out if it gets too close. Basically, it is a bit undesirable, but definitely preferred over Corruption and Crimson.

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    • Hat0ppp wrote:
      Question 1 Answer: Living blocks, such as grassy dirt, normal dirt, vines, trees. Stone, sand. Silt/slush in the initial "Burst" after WoF is defeated.

      Q2A: Ores, wood as long as it isn't a tree, nonliving blocks. Crimson can't spread through Hallow and vise-versa, same with Corruption.

      Q3A: Crimson/Corruption and Hallow pretty much spread themselves, they just spread through blocks next to them. Rest of the answer is same as #1.

      Q4A: Crimson/Corruption does spread through background walls, but again same walls as in #1, Jungle wall, stone wall etc.

      Q5A: 3-4 blocks wide minimum, but because vines spread those biomes you either want at least a ten block gap or something blocking the way so vines cannot grow.

      Q6A: No, unless they decide to create something to add in-game to return the Jungle. (Brilliant idea alert: Light-Green Solution - for use with Clentaminator, spreads Jungle biome. Make this happen, 505 Games!)

      And ummm, this thread was started almost 3 years ago... Shouldn't it be closed by now???

      Hallow and Corruption do spread through each other. Everything else is correct.

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    • 1. Which blocks can be converted to the Crimson/the Hallow/the Corruption? Stone, grass, mud, sand, ice, etc. 2. Which blocks cannot be converted? What I didn’t name 3. Which blocks spread the Crimson/Hallow/Corruption? Refer to 1. 4. Can the Crimson spread across walls? Certain walls 5. How many empty blocks are necessary to contain the Crimson? A 4-block wide hellevator would stop the crimson from spreading 6. Is there a way to revert the Jungle after it has been corrupted? Clentaminator + green solution

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    • Slime Lord wrote: The Hallowed is just as evil demented as the corruption and the crimson is the worst! The monsters are harder in the crimson, while the corruption has good theme, doesn't get super demented! The hallowed does the same thing and I try to destroy the crimson and forces the corruption and hallowed back. I can tolerate the Hallowed and I CAN live in the corruption, but I can't stand the Crimson!

      I cannot live in the corruption and I have the most powerful weapon of my class. and I am in pre-hardmode so I do not know how good I will be at hallow. on the other hand I CAN live in the crimson because, in the corruption there are those huge worm monsters that tunnel through the bottom of your house, but in the crimson there are no enemies that can get in your house (other than BoC).

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