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Damage80 / 160 Expert Mode / 240 Master Mode
Max Life800 / 1600 Expert Mode / 2400 Master Mode
KB Resist80% / 82% Expert Mode / 84% Master Mode
Inflicts debuffPlaguePlague
100% chance

Debuff duration1.5 seconds
Debuff tooltipRotting from the inside
Immune toConfusedPlaguePoisonedAcid Venom
BannerPlagueshell BannerPlagueshell Banner
Cold Bestiary Cold.pngVulnerable
Water Bestiary Water.png-
Sickness Bestiary Sickness.pngResistant
Electricity Bestiary Electricity.png-
Heat Bestiary Heat.pngVulnerable

The Plagueshell is a Hardmode enemy that spawns in the Jungle after Golem has been defeated. It attacks by going into its shell and hurling itself at players, dealing large amounts of damage on contact.


  • Damaging the Plagueshell causes it to stop its attack animation.
    • This does not occur in Revengeance Mode if the Plagueshell is under 25% health.
    • This also does not occur at all if the player is on the For the worthy seed.


  • The BestiaryBestiary entry for the Plagueshell: "A turtle’s shell and nervous system are intertwined, making giant tortoises ideal targets for the Plague. Whatever pain is caused by the process of drilling into their shells is rapidly anesthetized, putting the tortoises under control without a single protest."


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Now has 25% less health and 10% less damage in Master Mode.
    • No longer deals contact damage while not spinning.
    • Nerfed damage multiplier while spinning from 1.8x to 1.4x.
  • Fixed its bestiary entry using the wrong apostrophe.
  • Decreased Plague duration from 3 seconds to 1.5.
    • Now has gores.
    • Now only immune to stunlock in For The Worthy.
  • Now vulnerable to cold and heat debuffs, but resistant to sickness debuffs.
  • Decreased Plague duration from 5 seconds to 3.
  • Can no longer be stunlocked when below 25% health in Revengeance Mode instead of at all times.
  • Decreased minimum coin drop amount from 35 Silver Coin to 20 Silver Coin.
  • Increased Plague duration from 3 seconds to 5.
  • Nerfed damage from 130 / 260 Expert Mode to 80 / 160 Expert Mode.