tModLoader Help w/ biomes (Pre-Hardmode) [Calamity mod]

PXLPerfect5077

Terrarian
(This isn't like where all the blocks of a biome disappear. This is about the biome having not appeared.)
Stuff like the Sunken Sea, Brimstone Crag, all Pre-Hardmode Calamity mod biomes that normally are generated upon world creation aren't present FSR. (Example down below of where Sulphurous Seas is supposed to be.)
Screenshot 2025-09-14 184701.png

Instead of the Slurphurous Sea, It's the ocean like Vanilla Terraria.
 
Might be because when I was first about to play the mod, I migrated the world from OG Terraria because I already had some progress done and didn't want to lose it.
 
Might be because when I was first about to play the mod, I migrated the world from OG Terraria because I already had some progress done and didn't want to lose it.
It is definitely because of this. The biomes are created on world generation AFAIK, and you have to do something special to get them to appear.
 
It is definitely because of this. The biomes are created on world generation AFAIK, and you have to do something special to get them to appear.
So what do I do?
 
I don't want to start over, though. I have a lot of stuff.
There are actually ways around this.

Fish in the dungeon side of the ocean, and it will count for Sulphorous sea (And Abyss!) loot.

Look up on the Wiki the biomes that you want, there's always a way that you can build artificial versions.


The Astral infection, for instance, can be made using Astral Solution sold by the Steampunker.
 
There are actually ways around this.

Fish in the dungeon side of the ocean, and it will count for Sulphorous sea (And Abyss!) loot.

Look up on the Wiki the biomes that you want, there's always a way that you can build artificial versions.


The Astral infection, for instance, can be made using Astral Solution sold by the Steampunker.
And when Aureus is defeated, a meteor falls.
I believe the Brimstone Crag stuff might be locked, but i dont know.
you are kinda screwed with schematics for the Codebreaker though.
 
What if I did make a new world w/ Calamity enabled, gathered the blocks from the missing biomes, and smuggle them over to the main world. Is that possible?
 
What if I did make a new world w/ Calamity enabled, gathered the blocks from the missing biomes, and smuggle them over to the main world. Is that possible?
yeah, should be.
 
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