Blue Slime

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Blue Slime
Blue Slime.png
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
AI TypeSlime AI
Max Life25/50274330/75411495
KB Resist0%/10%/20%
BannerBlue Slime BannerBlue Slime Banner
Immune toPoisoned
Coins25Pre-Hardmode: 62Hardmode: 250Post-Plantera: 3

Blue Slimes are a highly common variety of slime. They appear in Forests during the day, or at any time in the Underground layer. Blue Slimes will usually not target the player, but will become aggressive when damaged, during the night, or at any time when underground.

Like most other slimes, the Blue Slime will be passive towards any player with the Royal Gel accessory equipped.

Like Green Slimes, Blue Slimes seem to have a confusing behavior, bouncing away from the player sometimes. This is common in multiplayer.

On Desktop version Desktop, Console version Console, Mobile version Mobile, and 3DSNintendo 3DS version, they can rarely be found carrying bonus drops, which the player receives upon the slime's death.


  • Blue Slimes will fall from the sky during the Slime Rain regardless of the biome or time of day.
  • Blue Slimes can be summoned with a Slime Statue, and are also summoned by King Slime when it is damaged.
  • Blue Slimes summoned with a Slime Statue do not drop Goodie Bags.


Achievement Gelatin World Tour.png
Gelatin World Tour • Defeat every type of slime there is!
Defeat at least one of every type of slime.
Achievement Slimer.png
Slimer • “You have killed every type of slime!”
Defeat at least one of every type of slime.


  • The BestiaryBestiary entry for the Blue Slime: "A simple, gelatinous creature that swallows anything and everything whole! It takes a long time to digest anything."


  • Desktop 1.0.5: Now floats in liquids and does not make a splash sound when hitting water.