Corpse Worm

Corpse Worm is a large monstrosity (Challenge Rating 3).

Corpse Worm — fantasy monster illustration. Corpse Worm is a large monstrosity (Challenge Rating 3).
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AC: 14

HP: 76

Speed: walk 30 ft., climb 30 ft.

STR: 16

DEX: 12

CON: 19

INT: 1

WIS: 12

CHA: 5

A large, bloated worm, its body the gray-white pallor of death and slicked with yellow mucus, crawls across a pile of corpses. As its dozens of legs propel it over the bodies, its fang-filled maw opens to reveal a second jaw that repeatedly bursts outward, slurping up chunks of flesh with each strike._
These creatures prowl deep caverns, seeking flesh to devour.
Eaters of the Dead. The corpse worm feeds primarily on death and decay, though it hunts and kills living prey it encounters if hungry. Corpse worms have a keen sense of smell that they can use to locate wounded prey or sources of carrion on which to feed.
Ignore the Unliving. While both the living and the dead are food for the corpse worm, it doesn’t feed upon the undead. Unless attacked, the corpse worm ignores undead near it. Some intelligent undead tame and train corpse worms, using them as pets, guardians, or shock troops.
Slimy Eggs. A female corpse worm lays up to two dozen eggs in crevasses, cul-de-sacs, or other remote areas. Corpse worm eggs are about the size of a human head and are sheathed in a rubbery, translucent gray membrane. The eggs are deposited with a sticky, mustard-colored excretion, allowing them to be placed on walls or even ceilings. This excretion exudes a powerful smell that many subterranean predators find unpleasant, and it allows the mother to relocate the eggs as she watches over them until they hatch.

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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, monstrosity, large