Bobbit Worm

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Bobbit Worm
Bobbit Worm.png
DamageThis attack will cause defense damage on hit. 150 / 300 Expert Mode / 330 Revengeance Mode / 348 Death Mode / 450 Master Mode / 495 Revengeance Mode Master Mode / 522 Death Mode Master Mode
Max Life6000 / 12000 Expert Mode / 18000 Master Mode
KB Resist100%
Inflicts debuffCrush DepthCrush Depth
100% chance

Debuff duration5 seconds
Debuff tooltipCrushed by aquatic pressure
Immune toRiptide (debuff)Crush DepthConfusedKami Flu
BannerBobbit Worm BannerBobbit Worm Banner
Coins 50 Silver Coin.png

The Bobbit Worm is an enemy that spawns in the lowest layer of the Abyss. It stays attached to the seafloor, waiting for the player to come close enough to it. When they do, it rapidly extends out towards the player, dealing significant damage if contact is made, before quickly returning to its previous location.

Upon hitting the player, they inflict Crush Depth for 5 seconds.


  • While it is referred to as a worm, it does not act like a typical Worm AI enemy.


  • The BestiaryBestiary entry for the Bobbit Worm: "Hiding away in the darkest corners of the void to strike at unsuspecting prey, bobbit worms take full advantage of the Abyss’ darkness. To live here, in the most extreme environment in the world, a creature must either be truly mighty, learn to use the environment to survive, or both."
  • Its behavior mimics that of real bobbit worms, which also launch themselves from underground to attack nearby prey with their mandibles before receding again.


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 health from 7500 / 15,000 Expert Mode to 6000 / 12,000 Expert Mode.
    • Now drops 5-7 / 7-10 Expert Mode Depth Cells at a 50% chance instead of 5-7 at a 50% chance with a 50% chance to drop an extra 2-3 in Expert Mode.
    • Now vulnerable to electricity and sickness debuffs, but resistant to water and heat debuffs.
    • Nerfed health from 10,000 / 20,000 Expert Mode to 7500 / 15,000 Expert Mode.
    • No longer inflicts Bleeding.
    • No longer drops Halibut Cannon.
  • Multiple worms can now exist at once.
    • Nerfed damage from 150 / 300 Expert Mode / 375 Revengeance Mode / 431 Death Mode to 150 / 300 Expert Mode / 330 Revengeance Mode / 348 Death Mode.
    • Resprited.
    • Resprited gores.
    • Reduced Halibut Cannon drop rate from 0.1% Revengeance Mode to 0.0001% Revengeance Mode.
    • Fixed an error where the internal value for it wasn't resetting.
  • Decreased minimum coin drop amount from 1 Gold Coin to 50 Silver Coin.
    • Now has gores.
    • Buffed health from 7000 / 14,000 Expert Mode to 10,000 / 20,000 Expert Mode, damage from 110 / 220 Expert Mode to 150 / 300 Expert Mode, and decreased spawn rate.
  • Nerfed damage reduction from 40% to 25%.
    • Nerfed health from 10,000 / 20,000 Expert Mode to 7000 / 14,000 Expert Mode.
    • Can now drop Halibut Cannon at a 0.01% chance.
  • Can now drop Depth Cells after defeating Calamitas.