Terraria's cast of NPCs is a picky bunch, but few are as gloriously weird as the Truffle. This fellow is not a human, not a merchant with a tragic backstory, and certainly not interested in standard apartment living. He is a talking mushroom with a very specific dream: a glowing mushroom biome above ground and a house with the basics. If a player manages to satisfy his fungal demands, he rewards them with vanity hats, tiny mushroom pets, and eventually a machine that cranks out Shroomite bars.
🍄 The Hardmode Gate
Before any moving trucks can be summoned, the world itself must enter hardmode. That means the Wall of Flesh has to be defeated in the Underworld. A player can summon this fleshy nightmare by tossing a Guide Voodoo Doll into the lava. Those dolls come from demons flying around the Underworld, so it is less a boss fight and more an invitation with extra fire. Players often finish the other pre-hardmode bosses first, but the real requirement is simple: no dead Wall of Flesh, no fungal roommate.
Once the Wall of Flesh disperses into nothingness, hardmode begins and the Truffle becomes available. But being available does not mean being easy to please.
🧱 A Mushroom Paradise, Not a Mud Puddle
The tricky part is creating an above-ground Glowing Mushroom biome. This is not a casual garden. The ground beneath the Truffle's house needs at least 100 blocks of mud that have been converted to mushroom grass and filled with glowing mushroom plants. A player can build this on the surface, or they can build a sky bridge of mud if they enjoy carrying dirt into the heavens.
The house itself can be made of any material. The Truffle may be a fungus, but he is not picky about wallpaper. The ground is the star of the show. It must be exactly mud and mushroom. The house still needs the usual NPC furniture: a table, a chair, a back wall, and a light source. Players can go wild with design, as long as that mud base is correct.
Counting blocks is where most people lose their minds. Terraria has two helpful settings. Pressing ESC reveals tiny icons to the top left of the inventory; the last one toggles the ruler on or off. The ruler helps visualize each block. Another option is pressing ESC, heading into Settings, then Interface, and making sure the tile grid is on. These tools turn a frustrating guessing game into a precise building project.
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📏 Ruler: Press ESC and click the ruler icon to see a glowing measurement line while placing blocks.
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🔲 Tile Grid: Press ESC > Settings > Interface > Tile Grid for block-by-block clarity.
A player does not need 100 mushroom seeds for 100 blocks either. Mushroom seeds can be gathered by cutting down existing glowing mushrooms. Once placed, the mushroom grass will spread through the mud over time. So a player can start with a modest amount of seeds and let nature, or Terraria's version of it, do the rest.
🛒 What the Fungus Sells
Once the Truffle moves in, he opens a shop that is part fungal fashion, part utility. On move-in day, he offers the Mushroom Cap, the Strange Glowing Mushroom, and Dark Blue Solution.
The Mushroom Cap is a vanity hat for players who want to look like they just crawled out of a cave. The Strange Glowing Mushroom summons a baby Truffle pet. That little fellow floats around, emits a bit of light, and is objectively adorable. Dark Blue Solution rounds out the early stock, and it becomes useful for players who enjoy tinkering with biomes.
After the mechanical bosses are defeated, the Truffle expands his inventory with mushroom-themed weapons, such as a spear and a hammer. Then, after Plantera falls, he sells the Autohammer. This machine converts Chlorophyte bars into Shroomite bars, which opens the door to Shroomite armor and tools. It is the moment a friendly mushroom turns into an arms dealer for endgame fashion.
| Item / Feature | Unlock Condition | Use |
|---|---|---|
| Mushroom Cap | Truffle moves in | Vanity hat |
| Strange Glowing Mushroom | Truffle moves in | Baby Truffle pet with a little light |
| Dark Blue Solution | Truffle moves in | Biome-related solution |
| Mushroom spear and hammer | Mechanical bosses defeated | Weapons |
| Autohammer | Plantera defeated | Converts Chlorophyte bars into Shroomite bars |
| Pylon | Happy in the mushroom biome | Teleport network access |
The Truffle will also sell a pylon if his living conditions are perfect and his biome is on point. That turns his weird little mushroom house into a fast-travel destination, which is more than most non-fungal NPCs can claim.
🏡 Final Tips for the Mushroom Landlord
A player who wants the Truffle should plan ahead. Stockpile mud from jungle caves, gather mushroom seeds before hardmode, and maybe pre-build the sky mushroom base so all that is left is to wait for the fungal grass to spread. The Truffle may be a high-maintenance roommate, but his pet, his weapons, and the Autohammer make him worth the effort. Plus, there is something deeply satisfying about watching a talking mushroom happily live in a house that was built just for him.