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Gelatinous Cube D&D 2014

Revised in 2024 The D&D 2024 version differs. Read the D&D 2024 version.

Challenge
2
XP
450
Size
Large
Type
ooze
Alignment
unaligned
Armour Class
6
Hit Points
84
Hit Dice
8d10 + 40
STR
14
DEX
3
CON
20
INT
1
WIS
6
CHA
1
Condition immunities
blinded, charmed, deafened, exhaustion, frightened, prone

Traits

Ooze Cube. The cube takes up its entire space. Other creatures can enter the space, but a creature that does so is subjected to the cube's Engulf and has disadvantage on the saving throw. Creatures inside the cube can be seen but have total cover. A creature within 5 feet of the cube can take an action to pull a creature or object out of the cube. Doing so requires a successful DC 12 Strength check, and the creature making the attempt takes 10 (3d6) acid damage. The cube can hold only one Large creature or up to four Medium or smaller creatures inside it at a time.

Transparent. Even when the cube is in plain sight, it takes a successful DC 15 Wisdom (Perception) check to spot a cube that has neither moved nor attacked. A creature that tries to enter the cube's space while unaware of the cube is surprised by the cube.

Actions

Pseudopod. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 10 (3d6) acid damage.

Engulf. The cube moves up to its speed. While doing so, it can enter Large or smaller creatures' spaces. Whenever the cube enters a creature's space, the creature must make a DC 12 Dexterity saving throw. On a successful save, the creature can choose to be pushed 5 feet back or to the side of the cube. A creature that chooses not to be pushed suffers the consequences of a failed saving throw. On a failed save, the cube enters the creature's space, and the creature takes 10 (3d6) acid damage and is engulfed. The engulfed creature can't breathe, is restrained, and takes 21 (6d6) acid damage at the start of each of the cube's turns. When the cube moves, the engulfed creature moves with it. An engulfed creature can try to escape by taking an action to make a DC 12 Strength check. On a success, the creature escapes and enters a space of its choice within 5 feet of the cube.

RollQuest summary Condition immunities: blinded, charmed, deafened, exhaustion, frightened, prone. Senses: blindsight 60 ft. (blind beyond this radius), passive Perception 8. Languages: None. Speed: 15 ft.

SRD 5.1, pp.337–338 · CC BY 4.0

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Licence and attribution

This work includes material taken from the System Reference Document 5.1 ("SRD 5.1") by Wizards of the Coast LLC and available at https://dnd.wizards.com/resources/systems-reference-document. The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License available at https://creativecommons.org/licenses/by/4.0/legalcode. RollQuest has adapted this material: it is reorganised into rules data, and some entries are reworded, abridged or corrected.

This work includes material from the System Reference Document 5.2.1 ("SRD 5.2.1") by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode. RollQuest has adapted this material: it is reorganised into rules data, and some entries are reworded, abridged or corrected.

Dungeons & Dragons and D&D are trademarks of Wizards of the Coast LLC. RollQuest is not affiliated with or endorsed by Wizards of the Coast. Both notices are also on the SRD licences page.