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Gelatinous Cube

Large · Ooze · CR 2 · Chaotic Evil

Source. Monstrous Menagerie

76 (8d10+32)

Ability Scores

Core attributes and their modifiers.

STR

DEX

-4

CON

INT

-5

WIS

-2

CHA

-5

Overview

Category Monsters

Size Large

Type Ooze

Alignment Chaotic Evil

XP 450

Initiative Bonus -4

Movement

Walk 15 ft (4.6 m)

Swim 15 ft (4.6 m)

Climb 7 ft (2.1 m)

Crawl 7 ft (2.1 m)

Senses

Blindsight 60 ft (18.3 m)

Passive Perception 8

Resistances & Immunities

Condition Immunities

blinded, charmed, deafened, fatigue, frightened, prone

Traits

Engulfing Body

A creature that enters the cubes space is subjected to the saving throw and consequences of its Engulf attack.

Ooze Nature

An ooze doesnt require air or sleep.

Sunlight Sensitivity

While in sunlight, the cube has disadvantage on attack rolls.

Transparent

While the cube is motionless, creatures unaware of its presence must succeed on a DC 15 Perception check to spot it.

Actions

A creature engulfed by the cube takes 10 (3d6) acid damage, can't breathe, is restrained, and takes 10 (3d6) acid damage at the start of each of the cubes turns

It can be seen but has total cover. It moves with the cube. The cube can hold as many creatures as fit in its space without squeezing.

An engulfed creature can escape by using an action to make a DC 13 Strength check

On a success the creature moves to a space within 5 feet of the cube. A creature within 5 feet can take the same action to free an engulfed creature but takes 10 (3d6) acid damage in the process.

Engulf

The cube moves up to its Speed. While doing so it can enter Large or smaller creatures spaces. Whenever the cube enters a creatures space the creature makes a DC 13 Dexterity saving throw. If the creature is unaware of the cubes presence it makes its saving throw against Engulf with disadvantage. On a success the creature may use its reaction if available to move up to half its Speed without provoking opportunity attacks. If the creature doesnt move it is engulfed by the cube.

Pseudopod

+5 to hit, reach 5 ft (1.5 m). Hit: 3d6 acid damage.

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (3d6) acid damage.

About Gelatinous Cube

Gelatinous Cube is a large ooze with a Challenge Rating of 2. It has a chaotic evil alignment.

In combat, this creature maintains an Armor Class of 6 and possesses 76 hit points (derived from 8d10+32).

GM Tips: Using Gelatinous Cube

1 tips available

When using Gelatinous Cube in your D&D 5e campaign, consider these tactical approaches:

Aquatic Combat: This creature can swim at 15 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.

Player Guide: Facing Gelatinous Cube

1 strategies available

When your party encounters this creature, keep these strategies in mind:

Aquatic Combat Defense: This creature can swim at 15 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 2.

Solo Encounter:

A single character of level 4 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 600 XP
Hard: 900 XP
Deadly: 1,200 XP

Based on D&D 5e Dungeon Master's Guide encounter building guidelines. CR roughly equals party level for medium encounters.

Frequently Asked Questions

What is the challenge rating of Gelatinous Cube?: Gelatinous Cube has a Challenge Rating of 2, making it appropriate for parties of level 2.0.
What type of creature is Gelatinous Cube?: Gelatinous Cube is a Large Ooze, which affects how certain spells and abilities interact with it.