Planes of Existence

Material Plane

 * &rarr; Main article: Material Plane.

The Material Plane is the plane in which the world of Exandria exists, and in which the bulk of Critical Role's story takes place.

Echo Planes
The Echo Planes are layered on top of the Material Plane just out of phase like a strange reflection. These echoes have similar geography and landmarks as the Material Plane but are changed or twisted.

The Feywild

 * &rarr; Main article: Feywild.

The Feywild overlaps the Material Plane, and there are many portals from Exandria to the Feywild.

The Shadowfell

 * &rarr; Main article: Shadowfell.

The Shadowfell is a plane of negative energy, which helps funnel the transition of souls in either direction between life and death.

Inner Planes
The further one gets in an elemental plane away from the Prime Material, the less habitable it becomes as it approaches the Elemental Chaos that surrounds all the Inner Planes.

Elemental Planes
The elemental planes are a group of planes based on the common elements.
 * The Elemental Plane of Fire
 * The Elemental Plane of Water
 * The Elemental Plane of Air
 * The Elemental Plane of Earth
 * The Frostfell

Transitive Planes
Transitive Planes are planes that connect other planes together, or are used as a means of travel between points on a single plane.

The Ethereal Plane

 * &rarr; Main article: Ethereal Plane.

It is a plane that overlaps the Material Plane. It’s filled with snow-like dust that floats in space and is colorless, having only black, white, and grey tones.

The Astral Plane

 * &rarr; Main article: Astral Plane.

It is one of the boundary planes that lie between many of the other realms. It is an amorphous realm where the will and the imagination have influence over the surrounding space, where one can will oneself to float and move. Zehir, the Cloaked Serpent and his nemesis Erathis, the Law Bearer both reside in the Astral Plane.

Outer Planes
The Outer Planes are where the divine exist.

Arborea
The plane where the palace of Crescent Grove stands, home to Corellon, the Arch Heart and Sehanine, the Moon Weaver. This plane embodies the chaotic good alignment.

The Abyss

 * &rarr; Main article: Abyss.

The Abyss is an infinite plane of chaos and evil dreamed into existence by Tharizdun. Without strict hierarchy, the Abyss is chaotic and unorganized.

Elysium

 * &rarr; Main article: Fields of Elysium.

Elysium is a idyllic plane of good where deities the Dawnfather and the Everlight live.

Endless Athenaeum

 * &rarr; Main article: Endless Athenaeum.

The Endless Athenaeum is a secret realm in an undisclosed plane. It is an embodiment of the goddess Ioun, the Knowing Mistress.

Limbo
Limbo is a chaotic neutral plane to which the githzerai moved after escaping enslavement under the mind flayers.

Mount Celestia

 * &rarr; Main article: Mount Celestia.

The Seven Heavens of Mount Celestia embody the alignment of lawful good.

The Nine Hells

 * &rarr; Main article: Nine Hells.

The Nine Hells of Baator is the home plane of the devils. It is a plane of evil and, unlike the Abyss, is highly organized with a strict caste system.
 * Avernus
 * Dis

Pandemonium

 * &rarr; Main article: Pandemonium.

Pandemonium is a plane of madness.

Ysgard
The plane where Kord, The Storm Lord dwells. A plane of chaotic good and chaotic neutral.

Far Realm

 * &rarr; Main article: Far Realm.

The Far Realm is a plane of madness situated very far from the planes.

Demiplanes
Demiplanes are extradimensional spaces with their own unique rules. Demiplanes can exist naturally and they can be created through spells or through the desire of a powerful force like a deity.
 * The Folding Halls of Halas
 * The Netherdeep

The Cosmos
The Divine Gate is a barrier between the Prime Material Plane and everything else, preventing the gods of Exandria, both good and evil, from physically crossing into the Prime Material Plane. The Gate was made by the Prime Deities after the Calamity to better protect mortals from the influence of the Betrayer Gods in the event known as the Divergence.

Planerider Ryn's notes (found by the Mighty Nein while in the Elemental Plane of Fire) included theories about possible future gradual or sudden shifts in planar structure, all with the potential to drastically reshape the cosmos.