World seed
Mushroom Surface
Mushroom Surface is a Terraria world seed.
What it does
I hear that Truffle is a really fun guy. (World has a Mushroom surface)
How to turn it on
Type its secret word as the world seed. The game keeps only a scrambled code of the word, not the word itself, so this wiki cannot show it.
After you have found it once, the world creation screen lists it under Secret Seeds, where you can switch it on for new worlds.
Secret seeds stack: you can switch on several for one world.
What depends on this seed
No drop, shop entry, chest, NPC spawn or buff in the data names this seed. Its changes are in how the world is made.