NPC drops

Most enemies drop coins when they are killed, and many also have a chance of dropping various items.

Chance of Obtaining a Drop

To determine the chance for at least one specific item to drop for a given number of mobs with the same chance of dropping said item, use the equation:

• 1-(1-([drop chance]))^([number of mobs]).
  

To find how many mobs are needed to obtain a certain percent chance it has dropped at least once, use:

• ln(1-[%chance in decimal (70% = .7 etc...)])/ln(1-[drop chance]).

Item Drops

For a list of all dropped items see Drops.

Some items are dropped by all monsters (except Meteor Heads) under certain conditions. Those can be found below.

Item	Condition	Amount	Chance
Soul of Light	During Hardmode inside the Underground Hallow.	1	20% (1:5) (36% Expert)
Soul of Night	During Hardmode inside the Underground Corruption/Underground Crimson.	1	20% (1:5) (36% Expert)
Jungle Key	Hardmode Jungle and Underground Jungle (Template:Desktop icon)	1	0.04% (1:2500)
Corruption Key	Hardmode Corruption and Underground Corruption (Template:Desktop icon)	1	0.04% (1:2500)
Crimson Key	Hardmode Crimson and Underground Crimson (Template:Desktop icon)	1	0.04% (1:2500)
Hallowed Key	Hardmode Hallow and Underground Hallow (Template:Desktop icon)	1	0.04% (1:2500)
Frozen Key	Hardmode Snow Biome and Underground Snow (Template:Desktop icon)	1	0.04% (1:2500)
Jungle Key Mold	Hardmode Jungle and Underground Jungle (Template:Mobile iconTemplate:Console icon)	1	0.04% (1:2500)
Corruption Key Mold	Hardmode Corruption and Underground Corruption (Template:Mobile iconTemplate:Console icon)	1	0.04% (1:2500)
Crimson Key Mold	Hardmode Crimson and Underground Crimson (Template:Mobile iconTemplate:Console icon)	1	0.04% (1:2500)
Hallowed Key Mold	Hardmode Hallow and Underground Hallow (Template:Mobile iconTemplate:Console icon)	1	0.04% (1:2500)
Frozen Key Mold	Hardmode Snow Biome and Underground Snow (Template:Mobile iconTemplate:Console icon)	1	0.04% (1:2500)
Pirate Map	During Hardmode in an Ocean biome.	1	1% (1:100)
Living Fire Block	During Hardmode inside The Underworld.	20-50	2% (1:50)
Mechanical Eye	During Hardmode, before defeating The Twins.	1	0.04% (1:2500)
Mechanical Worm	During Hardmode, before defeating The Destroyer.	1	0.04% (1:2500)
Mechanical Skull	During Hardmode, before defeating Skeletron Prime.	1	0.04% (1:2500)
KO Cannon	During a Blood Moon in Hardmode	1	0.1% (1:1000)
Present	During Christmas. (December 15th-31st)	1	7.69% (1:13)
Goodie Bag	During Halloween. (October 20th-November 10th)	1	1.25% (1:80)
Bloody Machete	During Halloween, enemies with <20 defense, <40 damage and <5 loot	1	0.05% (1:2000)
Bladed Glove	During Halloween, enemies with <20 defense, <40 damage and <5 loot	1	0.05% (1:2000)
Cascade	Before Hardmode, after defeating Skeletron, inside the Underworld.(Template:Desktop icon)	1	0.25% (1:400)
Amarok	During Hardmode in the Snow biome.(Template:Desktop icon)	1	0.33% (1:300)
Yelets	After defeating any Mechanical Boss, inside the Jungle.(Template:Desktop icon)	1	0.5% (1:200)
Kraken	Any enemy inside the Hardmode Dungeon.(Template:Desktop icon)	1	0.25% (1:400)
Hel-Fire	During Hardmode inside the bottom half of the cavern layer or the underworld.(Template:Desktop icon)	1	0.25% (1:400)
Star	When player is below maximum mana	1-2	58.3%
Heart	When player is below maximum life	1	8.3%

Coin Drops

Most monsters will typically drop a few stacks of coins after dying. Monsters that drop a large number of coins have a higher chance of dropping multiple stacks.

The total amount of money dropped is calculated using a "base value", which depends on the monster. A Skeleton for example, has a "base value" of 1. The exact amount of money dropped is this number multiplied by 80-120%.

After the amount of money is determined, there are then a few chances for the number to be increased.

• 20% chance of increasing by 5-10%
• 10% chance of increasing by 10-20%
• 6.67% chance of increasing by 15-30%
• 5% chance of increasing by 20-40%

These increases are not mutually exclusive, and a monster may have its money increased several times. It is possible to get all increases at once, as each one is rolled individually. The average amount dropped, therefore, is 119.5% of the "base" value. It is possible to get it even more increased by the Lucky Coin.

Template:Console icon Double Loot

Console versions of the game give players a chance to have double the loot drop from any enemy. The exact chance of this happening is 1/1000^Verify. Players can easily see the effect when farming for more common loot such as souls or gel.

History

 PC version

• Desktop 1.3.0.1: On the PC version of Terraria, Biome Key Molds are no longer dropped, Biome Keys drop instead.

• Desktop 1.2.1: Halloween drops introduced & Biome Key drops replaced by Biome Key Molds.

• Desktop 1.2: KO Cannon, Summon & Biome Key drops introduced.

• Desktop 1.1.1: Christmas drops introduced.

• Desktop 1.0.5: Enemy coin drops have been adjusted.

Template:Translation project