Chaotic Puffer

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Chaotic Puffer
Chaotic Puffer.png Chaotic Puffer (puffed).png
TypeFlying EnemyAquatic
Damage0 (not puffed)
100 / 175 Expert Mode / 262 Master Mode (puffed up)
90 / 180 Expert Mode / 270 Master Mode (Brimstone explosion)
Max Life5600
KB Resist100%
Inflicts debuffBrimstone FlamesBrimstone Flames
100% chance

Debuff duration1.5 seconds
Debuff tooltipIncinerating both body and mind
Immune toRiptide (debuff)Crush DepthConfused
BannerChaotic Puffer BannerChaotic Puffer Banner
Cold Bestiary Cold.png-
Water Bestiary Water.pngResistant
Sickness Bestiary Sickness.pngVulnerable
Electricity Bestiary Electricity.pngVulnerable
Heat Bestiary Heat.pngResistant

The Chaotic Puffer is an enemy that spawns in the 3rd layer of the Abyss. It slowly swims towards the player and inflicts the Brimstone Flames debuff on contact, while periodically puffing up every 5 seconds. While it is unable to damage the player while not puffed, if it hits the player or dies while puffed up, it creates a large brimstone explosion, which also hurts other enemies. It receives increased knockback upon being hit.


  • Though the Chaotic Puffer technically has 100% knockback resistance, it has a special interaction when hit by a projectile, which causes its velocity to get set to the projectile's velocity at the moment of impact. It will slowly drift to a stop afterwards.
  • The Chaotic Puffer slowly rotates clockwise when moving to the right, and counterclockwise when moving to the left and also spins when hit.


  • The BestiaryBestiary entry for the Chaotic Puffer: "These creatures inhale trace amounts of scoria in the water while inflating, heating the liquid inside of them immensely. Hot enough to melt iron in this state, they cause horrific burns to those they make contact with, and predators attempting to consume them are boiled from the inside out."


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
  • Nerfed explosion damage from 45 / 90 Expert Mode / 135 Master Mode to 45 / 70 Expert Mode / 90 Master Mode.
  • Decreased Brimstone Flames duration from 2 seconds to 1.
  • Now vulnerable to electricity and sickness debuffs, but resistant to water and heat debuffs.
    • Nerfed puffed-up contact damage from 115 / 230 Expert Mode to 100 / 175 Expert Mode and explosion damage from 200 / 400 Expert Mode to 90 / 180 Expert Mode.
    • Decreased Brimstone Flames duration from 5 seconds to 3.
    • Now spawns in the 2nd and 3rd layers of the Abyss instead of the 4th layer.
  • Decreased minimum coin drop amount from 50 Silver Coin to 30 Silver Coin.