Planes of Existence

The **Planes of Existence**, also known as the **Krosmos**, are a multitude of worlds and myriad alternate dimensions of reality. These realms are domains of raw elemental energy, pure thought and ethos, unfiltered chaos and calamity, the homes of demons and angels, or the dominions of the divine.

## World Tree Cosmology

Most diagrams of the Planes of Existence follow a structure known as the **World Tree Cosmology**, where the Planes are depicted in a tree-like structure. The *Zenith Planes*, *Elemental Plane,* and *Demiplanes* are the leaves at the top and throughout the tree respectively, the *Prime Material Plane* represents the wood of the tree, and the *Nadir* *Planes* represent the roots of the tree.

## The Prime Material Plane

→ *Main Article: Prime Material Plane*

The **Prime Material Plane** is the plane in which the world of Endymia and its solar system exists, and in which the bulk of the campaigns take place. It is notably the largest Plane of Existence, including Endymia's solar system and outer space beyond it.

## The Zenith Planes

The **Zenith Planes** are the top most planes, layered above the Material and Elemental Planes. The Zenith Planes are similar in nature to the Material, but the flora and fauna is much more different from realm to realm.

### The Feywild

→ *Main Article: The Feywild*

**The Feywild** overlaps the Material Plane, and there are several portals between it and Endymia.

### The Shadowfell

**The** **Shadowfell** is a plane of dark matter and negative energy, and elements of it are used to funnel the transition of souls from life to death or back.

→ *Main Article: The Shadowfell*

## The Elemental Plane

The **Elemental Plane** lies between the Material and Zenith Planes, At the upper middle portion of the World Tree Cosmology. This plane has four regions made up of a respective element - Fire, Water, Air, and Earth.

→ *Main Article: The Elemental Plane*

## The Gateway Planes

### The Ethereal Plane

The **Ethereal Plane** connects the Material, Elemental, and Zenith Planes together, acting sort of like a metaphorical glue keeping them in place. It is filled with snow-like dust floating in space. The plane itself is colorless, having only black, white, and grey tones, filled with no life.

→ *Main Article: The Ethereal Plane*

### The Astral Plane

The **Astral Plane** connects the Material and Nadir Planes, acting similar to the Ethereal Plane. This Plane is an amorphous realm where one's will and imagination have influence over the surrounding space, where one can will oneself to float and move.

→ *Main Article: The Astral Plane*

## The Nadir Planes

The **Nadir Planes** are where creatures of note outside the Prime Material exist. These Planes are sorted into two categories: the *Upper* and *Lower* *Planes*.

### The Upper Planes

The **Upper Planes** are planes in-between the Ethereal and Prime Material Planes that are home to good and neutral-oriented creatures.

#### *Asgard*

**Asgard** is a plane of technological advancement separated from the other Upper Planes, home to Mind Flayers and Githyanki, embodying chaotic good and neutral.

→ *Main Article: Asgard*

#### *Celestia*

**Celestia** is the realm of angels, embodying lawful good.

→ *Main Article: Celestia*

#### *Elysium*

**Elysium** is idyllic plane of good, made up of a grassland with clear skies.

→ *Main Article: Elysium*

#### *Inglorium*

**Inglorium** is the secluded realm of the Prodeans.

→ *Main Article: Inglorium*

### The Lower Planes

The **Lower Planes** are planes in-between the Astral and Prime Material Planes that are home to evil-oriented creatures. Several of the Fallen are scattered among these realms.

#### *Thanatos*

**Thanatos**, also known as **The Abyss**, is an infinite plane of chaos, darkness, and evil conjured by Nyarlathotep. It is an unorganized Plane with no set or strict hierarchy The Crawling Chaos himself and Lolth, the Spider Queen inhabit this plane.

→ *Main Article: Thanatos*

#### *Acheron*

**Acheron** is a lawful plane divided between evil and neutrality built on conquest and dominion, home to the dieties Pachikutiq and Arachnos.

→ *Main Article: Acheron*

#### *The Nine Hells*

**The Nine Hells** is the home plane of devils. It is a plane of evil, and unlike the Abyss, is organized with a strict caste system. The Nine Hells are notably the only layered plane in the World Tree Cosmology, made up of nine different demiplanes connected together by a planar substance known as *aether*.

The hierarchy is as follows: lemures, lesser devils, greater devils, and archdevils who in turn owe all fealty to Asmodeus.

To travel to one layer, a person usually has to traverse through the other layers, starting at the first layer, Avernus. Similarly, one must also traverse upwards to escape a layer, as the Nine Hells, being a layered plane, does not allow travel from the deeper layers to outside planes.

→ *Main Articles:*

* Avernus
* Dis
* Minauros
* Phlegothos
* Stygia
* Malbolgia
* Malodomini
* Cania
* Nessus

## 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 Megakrosm

The **Megakrosm** is an esoteric, formless, non-Euclidean structure serving as a barrier between the Prime Material Plane and the other planes. It exists to prevent both the Prodeans and Fallen from physically crossing into the Prime Material. The Megakrosm was created to shield Endymia from outside divine involvement from all ends, effectively ending the War of the World and letting Endymia pick up the pieces, starting anew.

All magical energy scattered throughout the Planes of Existence are used to fuel the Megakrosm, explaining why people cannot typically absorb mana from the natural world. However, studies have proven they can in a relaxed state (such as sleeping or resting), replenishing their own mana to the top of their reserve. All of the Prodeans willingly fuel their own magical energy into the Megakrosm as well, to keep the Fallen at bay.