Monstro.cc

Gelatinous Cube

Nearly transparent cube that travels dungeon corridors absorbing carrion, creatures, and trash

ooze dungeon subterranean neutral

Basic Fantasy Role-Playing Game

BFRPG

Armor Class12
Hit Dice4*
Number Appearing1
Attacks1
Damage2d4 + paralysis
Movement20'
Save AsFighter: 2
Morale12
XP280
Treasure TypeV

The nearly transparent gelatinous cube travels slowly along dungeon corridors and cave floors, absorbing carrion, creatures, and trash. Inorganic material remains trapped and visible inside the cube’s body. A typical gelatinous cube is ten feet on a side and weighs about 15,000 pounds; however, smaller specimens have been reported.

A gelatinous cube attacks by slamming its body into its prey. It is capable of lashing out with a pseudopod, but usually engulfs foes. Any character hit by a gelatinous cube must save vs. Paralyzation or be paralyzed for 2d4 turns.

Any treasure indicated will be visible inside the creature, which must be slain if the treasure is to be recovered.

Special Abilities

Paralysis: Any character hit by a gelatinous cube must save vs. Paralyzation or be paralyzed for 2d4 turns.
Nearly Transparent: Nearly transparent. Inorganic material remains trapped and visible inside the cube’s body.
Copyright 2006-2023 Chris Gonnerman. Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0). License

Other Sources

Old-School Essentials Classic Fantasy
Armor Class8 [11]
Hit Dice4* (18hp)
Number Appearing1 (0)
Attacks1 × touch (2d4 + paralysis)
THAC016 [+3]
Movement60' (20')
Saving ThrowsD12 W13 P14 B15 S16 (2)
Morale12
AlignmentNeutral
XP125
Treasure TypeV
10’ cubes of transparent jelly. Move through dungeons, absorbing debris and living creatures they come across.

Special Abilities

Surprise: On a roll of 1–4, due to near-invisibility.
Paralysis: For 2d4 turns (save versus paralysis).
Energy immunity: Unharmed by cold or lightning.
Embedded items: Indigestible items (e.g. gems, coins) are carried around inside the cube.
Copyright 2017-2019 Gavin Norman. Open Game License v1.0a. License
OSRIC
Armor Class8
Hit Dice4
Number Encountered1
Attacks1
Damage2d4
Move60-ft
AlignmentNeutral
IntelligenceNon-
XP3/150+4/hp
Treasure TypeIncidental; see creature description
SizeLarge (typically 10-ft cube)
FrequencyUncommon
LairNil (no lair)

Gelatinous cubes are dungeon scavengers. They move slowly through corridors and rooms, absorbing carrion, fungi, algae and other nutrients from the surfaces they touch.

Being silent and virtually transparent, gelatinous cubes have a higher-than-usual chance to surprise (1-3 on 1d6).

Gelatinous cubes can only digest organic material, and they will sometimes sweep up inorganic substances (including metal items such as coins, glass or ceramic items such as potion bottles, etc.). These incidental items are sometimes kept in the body of the ‘cube for many days before being ejected. Such items form the creature’s treasure.

Special Abilities

Paralysing touch: The touch of a gelatinous cube causes paralysis for 3d6+2 rounds (a saving throw vs paralysation is permitted to avoid this effect).
Surprise: Being silent and virtually transparent, gelatinous cubes have a higher-than-usual chance to surprise (1-3 on 1d6).
Immunities: Gelatinous cubes are immune to electricity, fear, sleep, hold, paralysis, and polymorph.
Cold vulnerability: Cold-based attacks slow them (as the spell) and inflict a maximum of 1d4 damage, unless they save in which case the cold based attack will have no effect.
Magic resistance: They have standard resistance to other forms of magic such as fire.