Why Isn’t the Truffle NPC Moving In? A Comprehensive Guide

The Truffle NPC in Terraria is a unique and coveted vendor, offering valuable mushroom-themed items like the Autohammer. However, getting this fungal friend to take up residence can be frustrating if you’re not aware of the specific conditions required for his arrival. The most common reason the Truffle isn’t moving in is simply because one or more of these necessary conditions haven’t been met. Here’s a breakdown of the requirements and troubleshooting steps:

First and foremost, the Truffle will only appear after Hardmode has been initiated in your world, and he requires a very specific biome and housing setup. You must have already defeated the Wall of Flesh to start Hardmode. Once you’ve entered Hardmode, the following conditions must be simultaneously fulfilled for the Truffle to move in:

• Surface Glowing Mushroom Biome: The Truffle requires a Surface Glowing Mushroom Biome (above 0 elevation, meaning at or near ground level). This biome is characterized by its dark background, a specific music change, and the presence of large mushroom trees in the background. It can not be underground. It also needs to be a large enough area to be recognized as a “full” biome.
• Mushroom Grass: The biome must be constructed of Mushroom Grass blocks. These blocks are created by planting Mushroom Grass Seeds on regular dirt or mud blocks. Ordinary grass blocks will not work for this.
• Vacant House: You must have a valid, vacant house within (or very close to) the confines of the surface Glowing Mushroom Biome. The house must meet the standard NPC house requirements: walls, a floor, a background wall, a door, a light source, and a table and chair.
• Patience: Even with all conditions met, it may take a bit of in-game time for the Truffle to move in. Be patient and wait, and ensure it’s day-time.

If all these conditions are satisfied and the Truffle is still not arriving, there might be a few other potential issues. Ensure that there are no corrupted or crimson tiles close to your Glowing Mushroom Biome. The Truffle can be especially finicky and might refuse to move in if the biome is tainted, even slightly. Sometimes, it is advisable to create the Surface Glowing Mushroom Biome well away from the corruption or crimson.

Frequently Asked Questions (FAQs) About the Truffle NPC

Here are some common questions and answers to further help you troubleshoot and understand the Truffle NPC in Terraria:

When Can the Truffle NPC Spawn?

The Truffle NPC will only start to move in after you have entered Hardmode. This means you must have defeated the Wall of Flesh first. The Truffle also requires a Surface Glowing Mushroom Biome constructed using Mushroom Grass Seeds and a vacant, suitable house built within or next to this specific biome. He won’t move in before these conditions are met.

What are the Chances of the Truffle Moving In?

There isn’t an exact percentage of chance for the Truffle to move in. If all the required conditions are satisfied, he will eventually move in. Patience is needed, and ensure that your game is not glitched. The most common reasons for delay are not having a fully formed and proper biome, not having a valid vacant house, and not being in Hardmode.

Does the Truffle Spawn After Plantera?

While the Truffle will spawn after Hardmode, it’s a myth that he requires Plantera to be defeated before he can move in. The primary trigger is the existence of the correct biome and an unoccupied house in a Hardmode world. However, some of the items that the Truffle sells require you to have defeated Plantera or a mechanical boss, but this has no effect on the Truffle moving in.

What Does the Truffle Sell?

The Truffle is a Hardmode NPC vendor who sells a range of items that are mushroom themed. One of the most notable items he sells is the Autohammer. The Autohammer is required for crafting end-game items such as the Shroomite armor. Other items he sells include various mushroom-themed building materials, weapons, and consumables.

How to Build a Surface Glowing Mushroom Biome?

To create a Surface Glowing Mushroom Biome, you need to:

1. Obtain Mushroom Grass Seeds. These can be obtained by going to an underground Glowing Mushroom Biome and breaking the mushroom grass.
2. Find a suitable area on the surface (above 0 elevation).
3. Place dirt or mud blocks.
4. Use the Mushroom Grass Seeds to convert the dirt/mud blocks into Mushroom Grass. The mushroom grass will then spread over the blocks you laid.
5. The biome needs to be large enough to be recognized as a proper biome by the game, evidenced by the unique music and background changes.

Why Won’t My Truffle Spawn Even After Building the Biome?

If your Truffle is not moving in even with a seemingly correct biome, double check:

• Is it truly a surface biome? (above 0 elevation).
• Is the biome large enough to be recognized as a proper biome?
• Is it truly Mushroom Grass and not ordinary grass?
• Is your house valid?
• Is the house placed close enough to the biome?
• Is the house completely empty? Are there any other NPCs assigned to that specific house?
• Is there any corruption/crimson near the biome?

Can the Truffle Move In While Corruption/Crimson Is Nearby?

Yes, but not usually. The Truffle is very particular, and corruption or crimson near the biome is a common reason for the Truffle to not move in. It is advisable to build your biome away from the influence of corruption/crimson. In some cases, isolating your mushroom biome with a few block wide gap around it can prevent the corruption or crimson from spreading.

Is It Possible to Move the Truffle Later?

Yes. Once the Truffle has moved in, you can relocate him to another suitable house elsewhere, as long as the house meets the usual standards. However, he may refuse to move into a house that is not in or near a Mushroom Biome, depending on the version of the game.

Is the Truffle Male or Female?

There is no assigned gender for the Truffle within the game. However, according to real world biology, truffles are either male or female and reproduce sexually, distinct from many fungi that can self-fertilise or reproduce asexually.

How Do Truffle Worms Relate to the Truffle NPC?

The Truffle Worm is a rare critter that spawns in the Underground Glowing Mushroom Biome during Hardmode, and it is not related to the Truffle NPC, other than that they are both themed around mushrooms. The Truffle Worm is used to summon the Duke Fishron boss, and it is caught using a bug net and then used as bait when fishing in an Ocean biome.

What Happens if My Glowing Mushroom Biome is Destroyed?

If your Glowing Mushroom Biome is destroyed, the Truffle will not move out. As long as the Truffle has a valid house, he will stay. However, if your Truffle doesn’t have a valid house or if the house is destroyed, then he will not move back in until the correct biome and a vacant house is set up again.

Why is My Truffle Not Spawning in Pre-Hardmode?

The Truffle NPC will only appear after you defeat the Wall of Flesh, which initiates Hardmode. There is no way to get the Truffle to move in during pre-Hardmode. Therefore, ensure that you’re in a Hardmode world before trying to get the Truffle.

Can I Use Artificial Mushroom Biome to Spawn Truffle?

Yes. As long as the artificial biome is a Surface Glowing Mushroom Biome, created with Mushroom Grass, the Truffle will move in. Artificial biomes are even necessary, as natural surface Glowing Mushroom Biomes will only occur if mushroom grass spreads to the surface naturally, which is extremely rare.

Does the Truffle Spawn Faster if I Meet All Requirements?

No, there is no evidence that the Truffle will spawn faster if all requirements are met compared to when only barely meeting the requirements. Once the requirements are met the Truffle has a chance to move in every day cycle, or he can take a bit longer. Patience is needed and just keep playing the game and eventually he will arrive.

Is the Truffle Bugged?

There may have been bugs in older versions of the game that affected Truffle spawns, but these are mostly resolved by now. If you’re experiencing persistent issues, ensure your game is up to date and that the biome is truly a proper one, and ensure that your house is truly valid and empty.

By following this guide and troubleshooting steps, you should be able to get the Truffle NPC to move in and enjoy the mushroom-themed items he has to offer. Remember to be patient and double-check all requirements.