Confused or Outraged about the new Luck stat? I think I can explain it, but only thanks to the wiki. I will adivce you on how to avoid this and just play the game as normal.

I have no way to check if any of this is correct in detail.

Terraria New Luck Stat Explained

Luck is a new hidded stat that affect drop rates and spawns. Unfortunately the only way to keep track of it is the Wizard.

This fact blew up hard. People are not happy, and then someone asked the Devs about it who gave a bad/funny answer which was obviously spread everywhere and just made everything worse.

So I’m here to try to clear some things up about Luck.

But overall, try to see this as a way to gain the system rather than a penalty. We know the facts, we can use it to our advantage now.

Note: So far I have no way to confirm this or anything like that since it is a hidden stat and therefore hard to keep track on. This is all based on the wiki.

Note: 2020 02 50: From 1.4.3 onwards, thee Negative aspect of Torch Luck was removed.

This makes the Luck system basically pointless now unfortunately as the only way to decrease your Luck now is to Kill Ladybugs or NPCs.

The Basics

Let’s start in the right end: Why should you care?
When an enemy is killed or an object is broken and that entity has a loot table, chances are calculated with a randomizer to see what you get.

Same with enemy spawn, time passes, something is supposed to spawn. Where and what is determined by chance.

And these things, the chance based things, is what Luck affects. Not the chance directly. But by adding a chance before the actual “roll” to either double or halve that “roll”.

What does it affect?
In most cases, the player performing the roll influences the luck.

  • All material drop rates from enemies
  • All unique item drop rates from bosses (with some exceptions).
  • Players with high luck have better coin drop rates and chance of Coin Portals from Pots
  • Chances of enemies dropping Hearts and Mana Stars. And dropping more than 1.
  • Chances of Food dropping from enemies and trees.
  • Chances of items appearing in the Travelling Merchant and Skeleton Merchant inventory. (Based on the player with highest luck.)
  • Chances of spawning special enemies and critters.
  • Chances of a Hardmode Dungeon enemy spawning outside their wall type
  • Chances of the NPCs spawning underground (the ones you need to find).
  • Chances of Fairies spawning underground.
  • Damage calculations, positive luck generates 2 random numbers and pick the highest. Negative the opposite

What is the Luck stat?

Luck is a hidden stat with a value between -1 and 1. This is also translated to a chance for things to be doubled or halved. Having a positive score of 1 means 100%, having a positive score of 0.2 = 20%, 0.6= 60% etc.

How to increase it:

  • Ladybug Luck -Touching Ladybug +0.2 (critters) effect lasts 12min
  • Garden Gnomes +0.2 (assumed range is within 170 tiles)
  • Lantern Nights +0.3 (random “weather effect”)
  • Luck Potions, up to +0.3 (explained later)
  • Having the right Torch nearby, up to +0.2 (more on that late

How to decrease it:

  • Bad Ladybug Luck – Killing Ladybugs -0.2 (critters) effect lasts 3min
  • Having the wrong Torch nearby, up to -0.3 (more on that later)

Halfshell Cat: Killing guide also gives Ladybug Luck, killing other NPCs give Bad Ladybug Luck.

How does it work?
First of all, Luck is calculated from all the sources:
Ladybugs + Torch Score + Lucky Potions + Lantern Night + Garden Gnome = Luck Stat

  • If the player’s luck is greater than 0, then there is a (100 * luck)% chance that the chance is doubled.
  • If the player’s luck is less than 0, then there is a (-100 * luck)% chance that the chance is halved.
  • If the player’s luck is 0, the chance will be the base value.

Before any of the “rolls” for the chance (in the previously mentioned affected things happen). You have a chance to double or halve that chance.

A Hook has a 4% chance to drop from Skeletons.

If your luck is above 0 it gives you that many percent of the chance being doubled.
So if your current luck value is 0.2 you get a 20% chance to double the 4% drop rate to 8%.
in 80% of the times, the drop rate is still 4%.

If your luck is below 0 it gives you that many percent of the chance being halved.
If you luck is -0.2 if gives you a 20% risk to halve the 4% chance to 2%.
In 80% of the times, the drop rate is still 4%.

Torches effect on Luck

The Big Torch Debate
The strangest thing to affect Luck is the type of torches placed near you (42 tiles) depending on the biome you are in.

(it’s the same range as a Water Candle/Peace Candle. So a bit larger than what you can see on your screen).

More than one of the same type of Torch does not affect the score.

Note: From 1.4.3 onwards, if the resulting value is negative it is ignored. Therefore, Bad Torch Luck will only cancel out Good Torch Luck but will not decrease your total luck.

This system adds a new layer of complexity
Torches give positive and negative “scores” depending on where you use them. These are two different values Positive Score and Negative Score.

The total scores in turn gives you + or – to your luck stat in the end.

  • If P score is equal to or greater than 1: +0.2 Luck
  • If P score is between 0 and 1: +0.1 Luck
  • If N score is between 0 and 1: -0.1 Luck
  • If N Score is equal to or greater than 1 but less than 2 :, -0.2 Luck
  • If N Score is equal to or greater than 2: -0.3 Luck

Then the total of those two are added together.

Note: From 1.4.3 onwards, if the resulting value is negative it is ignored. Therefore, Bad Torch Luck will only cancel out Good Torch Luck but will not decrease your total luck.

So if you use the right Torch 1+ P Score, and a bad Torch 1+ N Score your total luck is 0.2 – 0.2 = +0 Luck.

If you only use the right Torch 1+ P Score, your total luck is 0.2 +0 = +0.2 Luck.

The Torches and their Scores (directly taken from the wiki)

Torch Type Preferred Biome P Score N Score
Ice Snow, Underground Snow 1 1
Desert Desert, Underground Desert 1 1
Jungle Jungle, Underground Jungle 1 1
Corrupt Corruption Underground Corruption 1 1
Crimson Crimson, Underground Crimson 1 1
Hallow Hallow, Underground Hallow 1 1
Cursed Corruption Underground Corruption 1 0
Ilchor Crimson, Underground Crimson 1 0
Bone Anywhere except for Snow, Desert, Jungle, Corruption, Crimson and Hallow 0.5 0
Coral Ocean 1 0*
Torch Anywhere except for Snow, Desert, Corruption, Crimson and Hallow 0 0.5**
Others*** Anywhere 0 0
  1. *Coral torches give 1 N Score unless placed in water.
  2. **Torches Give 0.5 N Score in Desert, Corruption, Crimson and Hallow. But 2 N Score in Snow.
  3. ***All other torches give no positive nor negative scores such as Ultrabright Torches and the gem torches.

“Safe” Torches

In most cases, the torch thing is straight forward. Use the torch from the same biome for a positive buff but nowhere else.

Ice Torch gives bonus in Snow Biome but penalty everywhere else. Craft Ice Torches by combining 3 Torches with any Ice Block. The materials needed for the biome torches are gained from that biome alone.

But here comes a list of all the Torches that doesn’t have a Negative Score:

  • Purple Torch
  • Yellow Torch
  • Blue Torch
  • Green Torch
  • Red Torch
  • Orange Torch
  • White Torch
  • Pink Torch
  • Bone Torch
  • Demon Torch
  • Rainbow Torch
  • Ultrabright Torch
  • Cursed Torch
  • Ichor Torch

  • Gem torches are mady by combining any gem with 10 torches. You can now also combine 1 gem with an acorn to make a Gem Tree that grows and drops gems.
  • Bone Torches are sold by the Skeleton Merchant
  • Demon Torches are found in the Underworld
  • Rainbow Torches are crafted with 10 torches and a Rainbow Brick (which drops from Rainbow Slimes in Hallow).
  • Ultrabright Torches are sold by the Travelling Merchant
  • Cursed Torch are made from 33 Torches and 1 Cursed Flame, dropping in underground Corruption in hardmode
  • Ichor Torchare made from 33 Torches and 1 Ichor, dropping in underground Crimson in hardmode

Potions, Gnomes and Ladybugs

Luck Potions

The Lucky Buff gives + Luck depending on the time remaining. Therefore the 3 different potions give the same Lucky Buff but have different durations.

  • Lesser Luck Potion lasts 3min.
  • Bottled water, Water Leaf, Ladybug, White Pearl.

  • Luck Potion lasts 5 min.
  • Bottled water, Water Leaf, Ladybug, Black Pearl.

  • Greater Luck Potion lasts 10min.
  • Bottled water, Water Leaf, Ladybug, Pink Pearl.

They are all crafted at a Table with Bottles or Alchemy Stations.

  • Bottled Water: Craft with a Bottle while near water.
  • Waterleaf: Found in Deserts
  • Ladybug: Critters spawning in Forest biome during Windy Day events.
  • White/Black/Pink Pearls:From Oysters, fishing reward from Oasis, Ocean/


The Luck bonus is based on the remaining minutes of the buff:

  • If minutes left is 5 or greater: +0.3 Luck.
  • If minutes left is 3 or greater: +0.2 Luck.
  • If minutes left is less than 3: +0.1 Luck.

Garden Gnomes

+0.2 Luck.

Garden Gnome is a placeable furniture. However, to get one you need to lure a Gnome enemy into sunlight, true to the folklore.

Gnomes (the enemy) is a random spawn on the Surface (where there is background so below gorund), making them petrify counts as kills.


The Ladybug grants the player “Ladybug Luck” or “Bad Ladybug Luck”.

  • Touching one gives +0.2 Luck for 12 min.
  • Touching a Gold Ladybug gives +0.2 Luck for 24 min.
  • Killing one or using as bait gives -0.2 Luck for 3min.

These states cancel each other out.

Ladybugs spawn during Windy Day weather in the Forest Biome. Increase spawn rate with Water Candles and Battle Potions.

You can capture them and release them, touch them and then capture them again. Use the Zoologist Critter protection book to avoid killing them.

Lantern Nights

+0.3 Luck.

  • A random weather effect that can take place when no other weather or events are taking place.
  • It also occurs after defeating a boss (need to check if this is 100%, any boss, any number of times).
  • No idea about the chance of it showing up but easy to see as the background fills up with what resembles Chinese Lanterns, or if you will – the lanterns from Tangled.

Other Luck affecting stuff:

Halfshell Cat: Killing guide also gives Ladybug Luck, killing other NPCs give Bad Ladybug Luck.

Knowing Your Luck

Not gonna paste it all in. But talking to the Wizard NPC (in hardmode) is currently the only known way to know your luck.

Wizard Luck

Halfshell Cat’s Words of Wisdom

PSA: How to avoid luck mechanics for those that want to.

Too many topics about luck so hopefully this will help.

Luck gives a hit to damage and drop rate from placing the wrong torches.

Avoid it using:

  • Colored torches made from gems.
  • Ultrabrights or bone torches sold by special merchants.
  • Cursed/ ichor torches.
  • Other “special” neutral torches like Rainbow torches.

If you want a bonus then you can place the correct torch in the correct biome. This is helpful if fighting a boss you have trouble with.

Early on you want to look for amethyst or topaz to make torches from. You can even make them on the spot. Once you have 100 gem torches you can safely ignore this mechanic for the rest of the game as long as you occasionally dig up gems.

I’d appreciate it if others helped spread this knowledge so that people can just have fun playing until someone fixes it. Even if the devs don’t we can likely expect mods to alter it. Its not the end of the world guys, its just a little crafting.

Also kill the guide, touch a ladybug, place a garden gnome nearby or drinking a luck potion will all offset most torch luck penalties. So if you really want to use regular torches then just set up the guide to die whenever he spawns and his luck boost will last for 12 min.

More Math

For example, a Hook has a drop rate of 4% on killing an Skeleton but .

If you kill that enemy 1000 times you would expect 40 Hooks to drop (Very simplified, this is what is called a “statistical average”. It is probable but unlikely that you end up with 10 or 200 as well).

If your luck is 0.7 after all the buffs there is a 70% that the 4% drop chance is doubled to 8% when you kill a Skeleton. This results in a situation where our chances are sometimes increased which gives us a new Statistical Average

But it’s too late and my head hurts from writing the guide. So I will add actual calculations later.

About the damage

So everytime you deal damage the damage is set to a value of 0.85-1.15 of the final number.

So reaching 15dmg after all buffs and calculations and such gives the true damage somewhere between 12.75 and 17.25. This has always been the case.

200 damage may become anything between 170 and 230

But with negative luck there is a chance that the roll is made twice and the lowest one is chosen. With positive luck there is a chance that the roll is made twice but the highest is chosen.


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