Talk:Underground Hallow

hallow biome greaved by destroying demon alters?
to make it short, to make it sweet on the info. i was fed up with being destroyed by hardmode enmies, so i basically set myself up to die, only goal to DESTROY the alters, i remembered my old mines for a second, and went back into their depths... to discover a underground hallow biome where it didnt belong,i collected some shards, etc. from it, before being brutally killed (again) and losing it my mind set soley on ores i destroyed more and more and more demon alters until i thought the world was blessed enough, when i went back to my old mines again the hallow was replaced by underground corruption, my dream of crafting became a enemy horded nightmare, what happened that the hallow becae so overwhelmed exactly?
 * I'm thinking you got turned around in the mines. The Underground Hallow appeared because when you destory Demon Altars, there's a chance that a random bit of Pearlstone (or Ebonstone) will be spawned. From there it spreads as hallowed blocks are wont to do. Corruption cannot spread through or take over Hallow, and vice versa. There's nothing about breaking altars that would make them "swap places" or anything of that nature. My guess is that a bit of Ebonstone was generated when you broke another altar and spread to make an Underground Corruption biome, but the Hallow is still where it had been. -- TechpriestMagos 19:55, 17 December 2011 (UTC)
 * well, in short i neglected to trim the underground hallow and stuff properly but i know where it was by heart i swear, i even knew how to get back to it after knowing how to handle most of the enemies, there was a spiked lake i could get acrosss to the hallow biome n the caern layer, that spiked lake now has a LOT of corruption in it and of course now ebonstone walls *i dont realy know that i panicked... but i do know the hallow was definatley there before smasing loads of demon alters becuase just above the spike pool was a few crystals dangling, which i of course, saw no purpose of except for lighting at the time...* i literaly had stumbled upon a underground corruption, it was like what nightmares were made of... even my once precios hellavator fell into the depths of its dark gloom of death and corruptive ebonstone. i guess when you destroy too mny aters: thees a small chance ebonstone can destroy pearlstne? kinda like cactus in 1.0.5? i dont know the coding or anything so bear with me, its just odd that all that hallow died out.
 * i even have screen shos of what it looks like now via steam, wanna see?

legit screenshot
as promised from steam i have these screenshots of what happened, most of the halow bellow was replaced with corruption as seeen by the routes i took, could be a bug with the alters but should go undefined as of now. http://steamcommunity.com/profiles/76561198042241022/screenshot/630734179441752975?tab=public http://steamcommunity.com/profiles/76561198042241022/screenshot/630734179441762166?tab=public http://steamcommunity.com/profiles/76561198042241022/screenshot/630734179441793885?tab=public

http://steamcommunity.com/profiles/76561198042241022/screenshot/630734179441808906?tab=public

all bellow that pool WASNT corruption, it was (sort of) orderly pearlstone i am even boggled to how much was able to destry the corruption, due to not having decent armor, etc. i was only able to get small bits of screenshots in, afterwards i was slain by the devourerer NPC but that is 100% legit of how it happened, and it seems its trying to even surface from the screenshot... servers just being pounded today. aswell as yesterday. if i hadre decen armor and tools given to me i could probably bring back a few blocks and isolate them in glass for other developers to study, surely there is some type of "on-screen in-game" only scanner developers use for enviroments right? or some debug coding for if blue was to visit a world by himself and resolve large bits of biome crisis'es? i put 2 obdiian towers by the large hellavator with torches ontop, most of which is surrounded by naturually occuring "walls" of ebonstone, i dont know if its possible for ebonstone walls to spread on hardmode and if thats whats cuasing a cavern crisis but it seems whatever happens its always too dark to navigate due to the walls, i theorize it was just the color bugging outwith surface, sky and underground biome to biome but its so odd: how could an entire underground biome get destroyed? my old mine with hallow and pearlstne was so precious to me yet short lived! and i made that mine near my naturual spawn by it but that surely couldnt be the cuase since i have no beds now, what i mean to say is the naturual spawn is near the mine i built, most of which is naturually occuring so i didnt haveto jot down many short cuts (or etc. relating to such) and i know for a fact that where that spike pool that went unifished is is where i also got 2 crystals, but i HIGHLY DOUBT that mining things can bug thin... one time i hit an invisable block in the nether and i didnt drop anything (pickaxe'd it, not hammered) but that was well before 1.1 even existed.
 * Well the screenshots just show normal stone above your pool and everywhere else. The only thing different is the ebonstone in the 4th one. If you're talking about the background changing from the usual Cavern layer rock-gray to purplish, that's just an effect of the biome. There are no walls spreading there. No offense, but you're getting very wordy and I don't think we'll discover much more this way... -- TechpriestMagos 19:39, 28 December 2011 (UTC)

(I know, 9 years before) So I think I know what's going on, BUT my prediction is based on that the game didn't quit properly once.(e.g. freezed, out of batteries, alt+f4 quit,etc.) Stardustastrea (talk) 09:15, 23 July 2020 (UTC)

It is normal for people to turn autosave off when fighting wall of flesh, to avoid bad evil biome location spawn. Yet, you did save just after the wall of flesh fight. You mentioned that the "mine" wasn't converted into hallow after the start of hardmode,but after you smash the altars. By the time you had smashed some, you died countless times, tiring you out. You get to the mine, and it became hallow. You mentioned that then you died again. Considering you should be tired and perhaps frustrated, did you force quit the game? (I mean, I'd quit if I've played that long.) Stardustastrea (talk) 09:28, 23 July 2020 (UTC)

(by force quit I mean _not_ pressing "save and exit") Stardustastrea (talk) 09:31, 23 July 2020 (UTC)

If you did, it all makes sense. So, what might have happened is the autosave was still off, therefore the world was reverted to "after WOF". In other words, the Hallow "disappeared" first and the corruption was from the altars you later smashed. I don't know, but this connects all up. Stardustastrea (talk) 09:38, 23 July 2020 (UTC)

Or a simpler reason is just the world file was corrupted and the file reverted itself. Stardustastrea (talk) 09:42, 23 July 2020 (UTC)

Random spread
At some point both the underground hallow and corruption started spreading in random places (appearing out of nowhere, hundreds of blocks removed from existing hallow or corruption). Note: I didn't place any of it, it appeared in places I haven't even explored yet. Has anyone else noticed this? -- B-rat 16:32, 28 December 2011 (UTC)
 * at random times when breaking a demon alter, a random block throughout the world turns into ebonstone or pearstone 24.16.33.191 18:47, 28 December 2011 (UTC)

Depth required?
Can someone check that it's the same for Underground Hallow/Corruption as the normal Underground, starting at a depth of 0ft and add that info to the page please?

iOS problem
Chaos elementary and enchanted swords aren't spawning. Only the bats and slides spawn. What's wrong? (Its in the cavern layer.) -- 203.104.11.22 03:49, 17 February 2015 (UTC)

why is it so hard
when ever i go in it i freaking die and it is like i have a battle potion on but i don't i am trying to get my 35 gold coins back but nope i flip'en die in one minute at this on part i even tried potions like iron skin and thornes but n just no.hard more like freaking IMPOSIBLE SO pres the edit button at the too go some where the edit my thing aka adding a resonse


 * Looks like you might have just started hardmode? If this is true you'll probably want to avoid going there at all until later, as the most important thing you can get there (barring hardmode ores) is a Rod of Discord and some Crystal Shards. If you must return, however, don't try to force your way past the enemies. Try using a Calming Potion and Invisibility Potion to prevent enemies from spawning/targeting you. You should also remove/replace any aggro increasing items, and if possible, avoid/burrow around open areas, those seem to foster enemy spawns.
 * Also, please don't edit others posts. 4e696e6a6f795844 (talk) 22:57, 31 May 2018 (UTC)