Putrescent Slime

Putrescent Slime is a medium ooze (Challenge Rating 1).

Putrescent Slime — fantasy monster illustration. Putrescent Slime is a medium ooze (Challenge Rating 1).
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AC: 8

HP: 45

Speed: swim 10 ft., walk 20 ft.

STR: 12

DEX: 8

CON: 16

INT: 1

WIS: 6

CHA: 1

As a rat moves to an algae-filled pool of water to take a drink, the pool suddenly comes to life and devours the rat._
Putrescent slimes form in large pools of fetid water and are often mistaken for algae by neophyte explorers in the depths of the world.
Pool Feeders. Putrescent slimes lurk in dank pools, only attacking desperate creatures that drink from their homes. As their prey decomposes in the water, the putrescent slime slowly digests the disgusting morass.
Ooze Nature. A putrescent slime doesn’t require sleep.

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Further reading

Jetpack7 Game Master Series
The Game Master's Book of Random Encounters
Jeff Ashworth · 2020
The Game Master's Book of Traps, Puzzles and Dungeons
Jeff Ashworth · 2022
The Game Master's Book of Legendary Dragons
Aaron Hübrich · 2022
Last updated 7/27/2026·Tags: monster, ooze, medium