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 enemies with the same chance of dropping said item, use the equation: To find how many enemies are needed to obtain a certain percent chance it has dropped at least once, use:
 * 1-(1-([drop chance]))^([number of enemies]).
 * ln(1-[%chance in decimal (70% = .7 etc...)])/ln(1-[drop chance]).

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

Coin Drops
Most enemies will typically drop a few stacks of coins after dying. Enemies 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 enemy. A Skeleton for example, has a "base value" of. 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 enemy 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.

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. Players can easily see the effect when farming for more common loot such as souls or gel.

History
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