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Version 0.24: This article may not be up to date for the latest stable release of Crawl.

For a list of all jellies, see list of jellies.

jelly JJelly.png
HP 10-22
HD 3
XP 42
Speed 10
AC 0
EV 2
Will 10
Attack1 3 (hit: acid)

Resistances rPois+
Vulnerabilities None
Habitat Amphibious
Intelligence Brainless
Uses Uses nothing
Holiness Natural
Size Small
Type jelly, jelly
Flags Destroys doors
See invisible
Acidic flesh
Web immune
A pulsating mass of acidic protoplasm. It can and will eat almost anything, growing and splitting as it does so.

“Beware of the Blob!
It creeps
And leaps
and glides and slides
Across the floor
Right through the door
And all around the wall,
A splotch, a blotch...”
-Burt Bacharach and Mack David, “Beware of the Blob”. 1958.

Useful Info

Jellies are rather weak creatures that introduce the player to the concept of corrosion, a stackable debuff which inflicts a negative slaying bonus and an AC penalty.

Followers of Jiyva will have a frustrating time with the jellies their god provides. These jellies have a special appetite for items lying around the dungeon floor and will devour anything except artefact items.

Tips & Tricks

  • Their damage is deceptive; all acidic attacks dealt to players deal an extra 4d5 damage to players.
  • If at all possible, you should fight jellies using ranged attacks to avoid their acid.
  • Wearing a ring of resist corrosion or another source of rCorr will greatly reduce the chance of corrosion, as well as the damage you sustain.


  • Prior to 0.19, jellies would eat items on the ground that the player had not seen even if the player was not worshiping Jiyva. Also, they couldn't eat stones and large rocks previously.
  • Prior to 0.17, jellies would also eat items on the ground that the player had seen.
  • Prior to 0.15, jellies were notorious for permanently weakening weapons and armour used in combat against them. The corrosion overhaul changed this.
  • Prior to 0.14, jellies would not split no matter how many items they consumed.
  • Prior to 0.13, jellies were more durable and hit harder, but only had speed 9.