Terraria NPC happiness is a nigh invisible stat that influences a handful of useful features. The system is surprisingly detailed and finding it naturally would require having plenty of talks with your NPCs along with a mountain of trial and error.
What does NPC happiness do?
NPC happiness has two primary effects:
There are also a few other traits unique to certain special NPCs. TheNurse’s healing prices,Angler’s quest rewards, andTax Collector’s money gainare all influenced by happiness as well.
The most important feature is the ability to purchasepylons. There is a pylon foreach major biome(aside from Hell, which counts as being part of the Cavern biome, and the Corruption/Crimson) that can be purchased from NPC shops in that biome. The Glowing Mushroom biome also has a pylon despite being a minor biome by all standards.
You can travel between placed pylons so long as both pylons are near atown, which is a gathering of two or more NPCs, and are in their respective biomes. Only one of each type of pylon may be placed. Pylons are also unusable while a boss is alive.
Related:Terraria: How to get NPCs - Pro Game Guides
How to raise NPC happiness
NPC happiness is based on thebiome that they’re inand the NPCs that are living around them. you’re able to check if an NPC is happy or not and what they’re happy (or unhappy) about by selectingHappinesswhen talking to an NPC.
Each NPC has specific biomes that theylove, like, dislike, and hate. They’ll gain a large amount of happiness for living in biomes they love and a small amount for a liked biome. Conversely, they’ll lose happiness in a disliked or hated biome.
The same rule is applied to nearby NPCs. Each NPC has other NPCs that they love, like, dislike, and hate. Specifically, an NPC is defined asnearbywhen its housing flag is within 25 blocks.
There is also an incentive to keep NPC groups small. An NPC becomes less happy when there are more than two nearby NPCs. They also receive a happiness buff if there are no more than two nearby NPCs and no more than threeotherNPCs within 120 blocks.
To optimize NPC happiness, you’ll need to form small towns of like-minded NPCs. You’ll need to prioritize which NPCs you want to be happy sincenot every NPC can be at max happiness at the same time.
For help organizing all of the NPCs available in Terraria, go check outHow Many NPCs are in Terraria?on Pro Game Guides!
