Cosmology

The universe was made up of a variety of planes which surrounded a central material plane that was home to mortals and was summarily affected by the various planes that touched it. The cosmos itself was divided into three layers: the Material Plane, the Inner Planes, and the Outer Planes.

The Material Plane

The Material Plane was the central juncture of the various planes of the universe, and it consisted of various planets, stars, and celestial bodies that were suspended in open space known as the Great Dark Beyond. Many planets within the Material Plane were home to life, though the majority of known history took place on the planet Azeroth.

The Material Plane was the home of mortals, which could then come to after an affinity or connection to the various surrounding planes based on belief, worship, magical talent, or otherwise. It was also the home to the Titans, which were great beings of god-like power that were capable of shaping or sundering entire worlds.

The Inner Planes

The Inner Planes were otherwise known as the Border Planes, and each one of them corresponded to one of the six elements. Because of their proximity to the Material Plane, the Inner Planes frequently mirrored the Material Plane to a varying degree. It was also believed that they may have been shaped, or at least directly influenced, by the titans.

Deepholm (Earth)

The Firelands (Fire)

Skywall (Air)

The Abyssal Depths (Water)

The Emerald Dream (Spirit)

Also known as the Viridian Plains, the Jade Skies, the Verdant Jungle, the Emerald Paradise, and many other names, the Emerald Dream was a literal reflection of Azeroth itself. All mortals projected their consciousnesses to the Emerald Dream when they slept, and the Titans shaped the Emerald Dream as part of their initiative to safeguard Azeroth's World Soul. Keeper Freya and the Green Dragonflight watched over the realm, as it was tied to both the waking world and the slumbering Azeroth.

The Ethereal Plane (Decay)

Also known as the Veil, the Ethereal Plane was died to both death and decay. It was the only inner plane that was not influenced by the Titans, and ordering the Ethereal Plane was nearly impossible as it ambiently resisted any attempts to change it. When a mortal died, their spirit would pass into the Ethereal Plane and occupy the realm as they awaited their final destination in the Shadowlands. However, some lingered within it or on the edge of it as they dwelt upon unfinished business, and as a result they risked manifesting as ghosts or other undead.

Denizens of the Shadowlands (specifically certain types of Kyrians) occupied the Ethereal Plane as they searched for the souls of the dead so that they could be carried to the Shadowlands, but it was also home to dangerous creatures that preyed upon the living and the dead.

The Outer Planes

The Outer Planes, also known as the Cosmic Planes, corresponded to the six major cosmic forces of the universe, and they even predated the Material Plane. However, rather than reflecting the Material Plane, the Outer Planes instead attempted to influence it via the mortal denizens through a phenomenon known as corruption. Mortals, and even Titans, were sensitive to the Cosmic Forces, and could be shaped in its image through acute or prolonged exposure.

Corruption manifested in three ways: Mind, Body, and Soul. Each cosmic force corrupted in different ways, and came with their own strengths and weaknesses.

Outer Planes were effectively infinite in size, and each one was full of countless pocket dimension that were as big, if not bigger, than a single Inner Plane. Each had a cosmic force associated with it, and a name given to magic channeled with the cosmic force and two axes: Dynamic vs. Static, and Entropic vs. Extropic.

Regardless of its classification, no plane was intrinsically "evil", though entropic forces tended to be easier to abuse.

The Heavens (Light)

The Heavens was the Cosmic Plane of Light, which was a Static, Extropic force that was reflected in the manifestation of Holy magic. The Heavens were a plane of pure light where celestial beings resided, and as the source of Holy magic, they were a paradise of peace and tranquility. However, the plane also invited complacency and rigidity in mortals. The Heavens themselves coincided with the seven traits associated with the Holy Light.

The Heavens were the home of the Naaru, which were angelic beings constructed entirely of pure Light. They were exalted by all celestials, and acted as messengers to spread the song of Light throughout the cosmos. The Prime Naaru, which were the first of the naaru and the source of their kin, acted as the cornerstones of their respective realms. Similarly, the Guardians hailed from the Heavens, which were celestials of many shapes and sizes, though they often were faceless, radiant humanoids. Sightings of them were likely one of the many sources of legends about "angels".

Light Traits
Strong AgainstShadow, Death
Weak AgainstShadow
ComplimentsOrder, Life
Corruption
MindEncourages singular ideals, hardens against doubt
BodyAngelic features
SoulCan go to the Heavens after death instead of the Shadowlands
ExampleLightforged

The Void (Shadow)

The Void was the Cosmic Plane of Shadow, which was a Dynamic, Entropic force that was reflected in the manifestation of Shadow and Void magic. The Void was a plane of endless possibility and empty nothingness made up of both contradiction and certainty. It broke the minds of the weak, but for those able to truly see, unlimited potential awaited beyond the event horizon.

The Void had no locations and had nothing within it, thus it had no kingdoms, no laws, and no lands. It was a place of emptiness that was simultaneously far from empty, and it invited madness in those who sought to define its boundaries with mortal logic. The Void Lords were the closest things the Void had to a "location" because they were incomprehensible, eldritch monstrosities and living embodiments of madness. Examples of such creatures were Dimension the All-Devouring (a sapient black hole), Zigan the Fungal Queen (a mycelium the size of a galaxy), and N'zoth hoq Sshoq'meg Thoq, the Forgotten King (an incomprehensibly large hive mind of insects, fish, and vermin that swam through a boundless ocean of ink). The Old Gods were miniscule fragments of a Void Lord that were hurled beyond the Void to collide with material worlds.

Void Elementals, also sometimes called Voidwalkers, were beings of pure shadow that could sap the heat from one's flesh and invited visions of loss, despair, and madness. N'raqi were also native to the Void, and the flesh-warped beings of a thousand shapes invited nightmares and broke minds, along with Aqir, who were insectoid monstrosities that spawned from the Forgotten King's children, some of which mutated into Nerubians and similar creatures.

Naaru in their cycle of shadow, called Uraan, also manifested in the Void and they reflected the harmonious song of their celestial siblings in sibilant discord.

Shadow Traits
Strong AgainstLight, Life
Weak AgainstLight, Death
ComplimentsLight, Chaos, Life
Corruption
MindBreeds insanity, but a broken mirror can't be shattered and provides more perspectives
BodyMutates flesh with tentacles, eyes, etc
SoulNone
ExampleK'thir

The Fae Wilds (Life)

The Fae Wilds were the Cosmic Plane of Life, which was a Dynamic, Extropic force that was reflected in the manifestation of Nature magic. It was a wonderous land of pure life energy that was ruled by the Seelie Court—the fey-like denizens of the whimsical realm. While the Shadowlands represented the endpoint of mortal life, the Fae Wilds was where it all began. It was believed that all anima—perhaps even every mortal soul—sprang forth from the verdant gardens.

Like the Shadowlands, the Fae Wilds had an infinite number of sub-realms and the number constantly increased or decreased depending on the needs of the Tuatha.

Exaggerated versions of every creature in existence and in the Emerald Dream could be found in the Fae Wilds, but in addition to them, there were also fauns, who were the life-infused cousins of the sylvar of Ardenweald. There were also merfolk, who were beautiful humanoids with the lower bodies of fish, octopi, or other creatures. King Manan was a prominent merfolk, and many mortal legends of merfolk originated from these creatures passing into the Material Plane.

Tuatha, also known as the Ao Sidhe, were fey-like beings that were beautiful humanoids with insectoid and floral traits. They were numerous across the Fae Wilds' many realms, and Aessina, Daughter of Spring, was a Tuatha that was well-known on Azeroth. Though she grew up in Tirna Nogg, she quickly grew bored of her life and stifled with the expectations of her mother, Tatiana the Summer Queen, and her father, Obaron. She fled, and to cover her tracks, she popped off her head and left a dandelion in its place to fool the rest of the Seelie Court. Aessina soared the planes experiencing everything until she met Elune. She fell madly in love with the goddess and decided to stay with her. She grew fond of the Kaldorei, as they loved Elune (almost) as much as she did, and so she decided to dwell within their forests as much as possible. She even decided to play a prank on her beloved and spread word that the Kaldorei were her favorite children. However, her very presence caused nature to grow rapidly around her; ruins were devoured and vines spread freely. For that reason, she resided within the Emerald Dream most of the time.

However, watching her favorite mortals die and go to the Shadowlands saddened her, thus she visited her aunt Morgiana, the Winter Queen, and made a deal. In exchange for letting the Kaldorei dance among their beloved forests after death, Aessina would spend every autumn and winter tending to Ardenweald, which was how she became the Wisp Mother.

Tatiana was the one person Aessina's trick never fooled, and she knew what her daughter had done immediately upon seeing her. However, she was not upset. She was just glad her daughter was having a good time, and Tatiana knew she'd come back when she was ready.

Life Traits
Strong AgainstDeath
Weak AgainstShadow, Chaos
ComplimentsAll
Corruption
MindStrengthens primal instincts and id
BodyGrants animalistic traits, but protects against becoming undead and other types of corruption
SoulNone
ExampleWorgen

The Shadowlands (Death)

The Shadowlands were the Cosmic Plane of Death, which was a Static, Entropic force that was reflected in the manifestation of necromancy. The infinite realms of the Shadowlands were the afterlives for most mortal creatures and were overseen by the Arbiter. Mortal souls were weighed, processed, and delivered to the realm most suited to their needs. If no existing realm fit their purposes, a new realm would be made accordingly, even if it was only used by a single person.

Anima—the raw essence of life that formed a mortal's soul and experience—was a valuable commodity in the Shadowlands. Nearly every native Shadowlands denizen, as well as the magic and mechanisms that made it operate, ran off Anima, but given the Shadowlands was the rest place for all mortal souls, it was usually in abundance.

Shadowlands realms fell into one of three categories: Service, Rest, and Atonement.

Larger realms could count as multiple.

Interloper Realms

Interloper realms were "false" realms that weren't created by the Arbiter and instead plugged into the Shadowlands system, effectively parasitizing off of it.

Death Traits
Strong AgainstShadow, Life
Weak AgainstLight, Life
ComplimentsChaos, Order, Life
Corruption
MindStrengthens negative thoughts, but protects from madness
BodyWither and decay
SoulSouls are already destined for the Shadowlands
ExampleUndead

Librarium Categorica (Order)

The Librarium Categorica was the Cosmic Plane of Order, which was a Static, Extropic force that was reflected in the manifestation of arcane magic. It was a plane-wide library with exactly 32 sub-realm sections that were perfectly organized, which with their own specifications, purposes, and needs. It was a scholar's paradise, and all leylines fed from this realm.

Arcane Traits
Strong AgainstChaos
Weak AgainstChaos
ComplimentsLight, Chaos, Death, Life
Corruption
MindHeightens intellect and pride
BodySymmetry, crystals, full discorporation
SoulNone
ExampleEthereals

The Twisting Nether (Chaos)

The Twisting Nether was the Cosmic Plane of Chaos, which was a Dynamic, Entropic force that was reflected in the manifestation of Fel magic. It was an infinite universe in a realm, and planets, stars, and logic-defying cosmic phenomena roiled through the nebulae, raining chaos everywhere. The Burning Legion controlled much of the realm.

Some plants that existed in the Twisting Nether were formerly from the Material Plane, such as Argus, which was a massive planet whose heart was rent asunder by being transported to the Nether. It became the heart of the Burning Legion, and it was about 100 times larger than Azeroth, with its yearly cycle being about as long. Outland, similarly, was all that remained of Draenor and was shifted to the fringe of the Twisting Nether, where it was tied to Azeroth via the Dark Portal.

The vast open regions of the Twisting Nether was referred to as Netherspace, and it was in a remote section of Netherspace that the Guardian Aegwynn anchored Karazhan's reverse side.

Demons made up the majority of the Twisting Nether's denizens, though ethereals, who were not originally from the Nether, largely dwelt there after a catastrophe scattered their planet across the realm. Their affinity for arcane magic made them uniquely suited to master the chaotic realm.

Chaos Traits
Strong AgainstOrder, Life
Weak AgainstLight
ComplimentsDeath, Shadow, Order Life
Corruption
MindEncourages vice, anger, and pride
BodyGoat-like features, green blood, wings
SoulCan gain immortal demon souls at a high cost
ExampleSatyrs

The Astral Plane

The Astral Plane was not a specific realm, but instead was the space between other planes and was also fittingly sometimes called the In-Between. Because of its nature, it had no traits or corruption associated with it, and it had no locations on its own as it was just made up of empty, ambient magic. However, Brokers had set up many safe havens, such as Tazavesh, the Veiled Market. Brokers themselves were astral beings who piloted constructs that they tied their essence to.

Aside from Brokers, the only other denizens of the Astral Plane were devourers, which ranged from small mites to terrifying behemoths of horrifying scope. They feasted on magic of all types, and were constantly trying to slip into the Outer Planes to feast on their cosmic magics.


Worlds of the Warcraft Universe
Plants, moons, and other locations ArgusAzeroth (Blue ChildWhite Lady) • Draenor (Pale Lady) • Great Dark Beyond
Inner Planes Abyssal DepthsDeepholmEmerald DreamEthereal PlaneFirelandsSkywall
Cosmic Planes Fae WildsHeavensLibrarium CategoricaShadowlandsTwisting NetherVoid