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"Slime" redirects here. For the battle pet ability, see Peticon-undead Ability creature poison 02 [Slime].
Acidic Swamp Ooze HS

An ooze in Hearthstone.

Oozes (also known as slimes) are a type of mindless slime creatures. They are known to adapt to their environments, taking on aspects of their surroundings, which may account for the variety of oozes seen on Azeroth and beyond.[1] Many of them have bones integrated into their bodies, with skulls being used as their head.

Smaller oozes are sometimes known as oozelings.


No one knows what their motivations are or if there is any specific ecology behind their existence. An unproven and unpopular theory belonging to Laris Geardawdle is that oozes and slimes are tied to the creation of Azeroth, almost like a secretion of the planet.[2]

First War[]

WCOnH logo This section concerns content related to Warcraft: Orcs & Humans.
Main article: Slime (Warcraft I)
Warcraft I - Slime

Slime art in the Warcraft: Orcs & Humans manual.

These slimes seek to eat the blood of the living. No magic could have created these crawling masses, but yet they exist. They seem attracted to the heat of living bodies, and will seep through even the tightest armor to drain into the pores of their victims' skin and sap them of strength and life.[3] They have no intelligence and drain heat as food. No magical properties have been found to exist within the slime, but nature is often a magik unto itself.[4]

Night of the Dragon[]

WoW-novel-logo-16x62 This section concerns content related to the Warcraft novels, novellas, or short stories.

In Night of the Dragon, a group of dwarves encounter an ooze in the Wetlands. The creature is attacked by one of the dwarves, but as the dwarf's axe sinks into the ooze, the dwarf falls onto it and is sucked in. Their leader Rom tried to save him, but in moments, the dwarf's head was already turned into a skull, and they could see the thick beard begin to wither and dissolve. The victim could only twitch once as he was being dissolved to death.[5]

The mass of oozes apparently can douse flaming arrows, unless the flame is fueled by oil, which will turn it into an inferno and kill them. Its mass will then also feed the flames. When faced with such an assault, other oozes will try to escape into water.[6]

World of Warcraft[]

WoW Icon update This section concerns content related to the original World of Warcraft.

In Felwood slimes are found all around pools of water blessed by the touch of Fel. The Scourge decimated the area with attacks of infernals and other demonic magics—the slimes supposedly crept up through the earth during these attacks.[7] The adventurer could take a sample of slime from Felwood and place some of it into the various tubes and beakers on the table. As things begin to boil and spurt, the slime changes colors.[8]

According to Chemist Fuely, the slimes in Un'Goro Crater seem to be elemental in nature, but also something more. He stated that they remind him of the Old Gods.[9]

The Burning Crusade[]

Bc icon This section concerns content related to The Burning Crusade.

In Outland, the felblood of the annihilan Aggonar spawned slimes at the Pools of Aggonar.[10]

Wrath of the Lich King[]

Wrath-Logo-Small This section concerns content related to Wrath of the Lich King.

Hierophant Thayreen's ancestors once planted a tree in the middle of the Grizzly Hills. It was called Vordrassil and it was to become a world tree. For reasons long forgotten, after the tree was fully grown, they decided it needed to be destroyed. Its giant trunk splintered at three locations in the area to the north. Where the tree touched the ground, foul ooze began to crawl the earth.[11] This slime is foul with a darkness far more ancient than their worldly forms would indicate. The land itself has a memory of this evil for as long as it has existed.[12] Eventually, the spirit of Ursoc stated the druids of old were wise to tear down Vordrassil, for its roots seep deep into the dwelling of an ancient evil. He then warned that the Old God Yogg-Saron's evil extended past Vordrassil's roots.[13]


Cataclysm This section concerns content related to Cataclysm.
Bloodvenom Slimeslave 2

A tauren possessed by a slime.

Following the Cataclysm, the Forsaken apothecary Winna Hazzard at Bloodvenom Post researched ways to use the demonic ooze here against the Alliance. However, with her experiments on the slimes, she transformed all the inhabitants of Bloodvenom Post into Bloodvenom Slimeslaves, except for Altsoba Ragetotem.[14]

Battle for Azeroth[]

Battle for Azeroth This section concerns content related to Battle for Azeroth.

During Black Empire assaults caused by N'Zoth, as well as in Ny'alotha, Old God slimes often with many eyes inside were seen.


Shadowlands This section concerns content related to Shadowlands.
Slimed Skeleton

A Slime giant in Maldraxxus.

The House of Plagues of Maldraxxus relies on slimes for their experimentation and creating slime constructs at Plague Watch. After the fall of the House of Plagues, many Maldraxxi were turned into slime giants, including Margrave Stradama who had managed to maintain her mind. Mad Mortimer performed an experiment that successfully turned him into two slime constructs and one slime.[15][16] Other cases of slimes in Maldraxxus are animated flesh in the House of Constructs.

In Revendreth, the muck pools where dredgers are made can generate muck slimes.


The following items are commonly dropped by oozes.



As a companion pet[]

In the RPG[]


Sludge in Manual of Monsters.

Icon-RPG This section contains information from the Warcraft RPG which is considered non-canon.

An ooze is a mindless, amorphous, or mutable creature. They are also blind. Some oozes have the ability to deal acid damage to objects. Oozes eat and breathe but do not sleep.[17]




This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.

The appearance of oozes appears to possibly be correlated to the presence of Old Gods (and thus, potent Void energies) on a planet, as speculated by Chemist Fuely.[9] In Outland's Shadowmoon Valley, ooze mobs called the Black Blood of Draenor are found in the Netherwing Mines. This is reminiscent of how saronite is often referred to as the "Black Blood of Yogg-Saron". On alternate Draenor, it is stated that the appearance of oozes also referred to as the "Black Blood of Draenor" is a result of the Void's influence on the planet becoming more pronounced.[19] Thus, it can be speculated that Outland's Black Bloods appeared due to the attempted summoning of an unnamed Old God a short distance away by the Dark Conclave, which was thwarted by adventurers in N [25-30] Thwart the Dark Conclave.


Heroes of the Storm

Patch changes[]

  • Mists of Pandaria Patch 5.1.0 (2012-11-27): Oozes once considered uncategorized are now classified as Aberrations and Elementals.

See also[]