Health

Every creature in Rain World, including the, has a health value, also known as the creature's resistance. This value determines how much damage that creature can take before dying.

Most of the time, damage is dealt by s, and the damage dealt varies on many things, most noticeably which Slugcat is throwing it. The following are damage values for Slugcats on the game's different difficulties:
 * The deals approximately 0.8 damage per spear hit.


 * The deals approximately 1 damage per spear hit.


 * The deals approximately 1.25 damage per spear hit.

Although the damage difference is small between the three Slugcats, the increased or decreased number of spears that must be used to kill certain enemies can greatly change how the player must approach combat.

deal somewhere between 5 and 8 damage, though the exact amount has not yet been determined.

deals very little damage, and most creatures take a completely insignificant amount of damage from them.

The most damaging item in the game is a, which can kill anything instantly, with the sole exceptions being , as they are immune to explosives, and Iterators.

The following is a rough list of the health values of each creature in the game:

Calculating Health
The health of a creature is defined by the Base Damage Resistance value, which serves as the dividend in a calculation for determining damage. The Base Damage Resistance value is the Toughness attribute of a Creature times 2; Blue Lizards with their Toughness of 0.5 have a Base Damage Resistance value of 1, and Green Lizards with 2.5 Toughness have 5 Base Damage Resistance, or a health/hit point count of 1 or 5 for the corresponding Lizard Breed. Apart from the Base Damage Resistance, there also exists the Base Stun Resistance, which determines the amount the creature is stunned, and Damage Resistances, which serves as the dividend for calculating the damage received from the correspondding damage type.

Damage Types
Apart from default/standard damage, there exists 6 listed damage types, these being Blunt, Stab, Bite, Water, Explosion, and Electric. Within the code, these damage types are sometimes denoted using integers; a range of 0-5 where 0 = Blunt, 1 = Stab, 2 = Bite, 3 = Water, 4 = Explosion, and 5 = Electric damage type. By default, Lizards have a Bite Damage Resistance of 2.5, a multiplier of 40%, or a -60% reduction in damage. There are Creatures that may have specific damage type resistances listed, which would either increase or decrease the damage received from a certain source. For instance Brother and Daddy Long Legs are both highly susceptible to the Explosive damage type, where they can be killed with a single Explosive Spear that directly hits their core body chunk, even though Brother Long Legs have an HP of 100 and Daddy Long Legs have a HP of 200, far surpassing the normal damage output of the spear and/or concussive blast. Other Creatures like Centipedes have an Electric Damage Resistance of 102, therefore taking 1/102 the normal amount of damage, negating over 99% of received damage.

Body Chunks
A Creature is made up of one or more body chunks, which can be grouped up into subsections of the total Creature; Lizards have a single head, throat, and body, while Centipedes have a series of body segments that are capped off with a head at each end, always resulting in two heads and a variable number of body segments in between. These various body subsections often have different damage resistances and additional properties. For Lizards, their body chunks take the base damage of 100%, unmodified, while damage to the head is multiplied by 10%, severely reduced, and damage to the throat is multiplied by 150%, greatly increased. For Centipedes, the amount of damage taken depends on if the hit body segment has a shell at the time of impact, providing a damage reduction, whereas a segment without a shell that is hit will take an increased amount of damage. There is a threshold at which the shell of a Centipede body segment will break off, often taking 1 spear hit. The head segments also take decreased damage when hit with a spear if that segment already has a spear lodged into it.

Bleedout
Bleedout is a mechanic in which the health of a Creature is slowly drained after taking initial damage, depending on the amount of damage received and the resistances and attributes of the Creature.