how to get truffle npc

truffle wants to move in (you get achievement)

Defeat Wall of Flesh

You need to defeat the Wall of Flesh to get into hard-mode. You can do this by throwing a guide voodoo doll (acquired from voodoo demons in the underworld) into lava while the guide is alive and you are in the underworld.
(Wall of Flesh)[terraria.wiki.gg]
(Voodoo Demon)[terraria.wiki.gg]

Get the Dryad into an underground mushroom biome

You need to get the Dryad into a mushroom biome. After doing this, she will sell mushroom grass seeds. Buy around 100-200 seeds, then find mud. Mud can be found most accessible in the jungle, and you will need around 100-150 mud depending on how big you want the biome to be (at least 100 blocks).[terraria.wiki.gg]

Building the biome and the house

You have to build the glowing mushroom above 0 depth, which can be measured by the Depth Meter. [terraria.wiki.gg]Put down the mud you obtained and plant the Glowing Mushroom seeds inside of the mud.

(Valid Housing)[terraria.wiki.gg]

A valid house includes a 60 tile radius including the frame of the house, a light source, a table, a chair or toilet, and an entrance. You can't have a house be near an evil biome or the edge of a world either.

You have the Truffle!

Once you wait a bit, he will show up and sell many mushroom related items.[terraria.wiki.gg]

Credits

All credits go to the Terraria community (https://terraria.wiki.gg/wiki/). I do not own any of these images nor information and I highly recommend you check them out.

[vodz]

truffle is my favorite npc

[oliveriocon5]

shroom

[Tiggler]

best guide