Cosmology

Eldaron uses a version of the Great Wheel cosmology come for D&D settings.

Eldaron's cosmology was defined by the Supreme Deities, particularly Hallistar, who crafted the planes from the primordial energies of the universe. Over time, the structure of the universe has been modified through the creation of new planes. As well as the planes listed below, countless demiplanes are formed within the transitive planes and from Edgespace.

The planes of Eldaron exist in a paradoxical state; most of the planes are infinite, yet clear boundaries exist. The universe is similar in construction; limitless with energy and space yet with defined limits.

## Inner Planes

### Prime Material Plane (Eldaron)

The Prime Material Plane, sometimes called Eldaron (although the name Eldaron tends to refer to the universe at large) is the most varied of the planes of existence; both good and evil, and law and chaos are present in plane, and a wide variety of environments and beings exist here. The most notable residents of the Prime Material Plane are the many mortal races. Created for Shendali by Hallistar as a place for her precious mortals to live, the Material Plane has underwent many changes, the most notable being the Sundering of Dread and the Sundering of Delight, which lead to the creation of the Shadowfell and the Feywild respectively.

The Prime Material Plane is comprised of multiple continents: Banrios, Niwhan, Ulumar, and the Ring of Shendali (often shortened to Shendia for convenience). Between the continents, great oceans dotted with small islands exist. From the perspectives of the Banrians and Niwhanese, much of the world is still unexplored, with the discovery of the Ring of Shendali having occurred within a century. Many arcanogeographers theorise that another continent may exist southwest of the Ring of Shendali, but no voyages have been made to this supposed new landmass.

### The Shadowfell

A dark and lifeless realm, the Shadowfell was once part of the Prime Material Plane. It was severed from the Prime Material Plane by the Pantheon of Kalix in an event known as the Sundering of Dread; during the Illithid Era, an ancient and now extinct race of mortals known as the Bygones harnessed negative energies from the Lower Planes as a weapon against their illithid oppressors. However, they quickly lost control and a large section of the Prime Material Plane was severed by the Pantheon of Kalix. This severed section became the Shadowfell.

Despite its initial flood of negative energies, by being shielded by the Ethereal Plane, the Shadowfell is able to have some residents. Firstly, various creatures of shadow originate from the plane wander the plane. Secondly and more prominently, compared to other races, many elves survived the Sundering of Dread, as the race was created with both divine and fey energies that provided additional protection. The rapid exposure to negative energies turned these elves into the Shadar-Kai. The Shadar-Kai built civilizations in the Shadowfell, and are the dominant race in the Shadowfell.

### The Feywild

The Feywild, like the Shadowfell, was cut off from the Prime Material Plane; it was previously a section of the Prime Material Plane (known as the Feylands) that the Pantheon of Kalix permitted the Fey to inhabit as reparations for the theft of Titania's essence, but when the Bygones flooded the Prime Material Plane with negative energy, a section of the Feylands were corrupted. This was missed in the first sundering, the Sundering of Dread, but was noticed quickly after. Seeing it as an opportunity to remove the Fey from the Prime Material Plane, Kalix ordered for all the Feylands to be severed from the Prime Material Plane. This event was called the Sundering of Delight, and created the Feywild.

The Feywild, despite the Fey originally being creatures of chaotic goodness, is a plane of mostly chaos that lacks any extreme goodness. This is because of the divide between the Seelie Court of Titania and the Unseelie Court of the Queen of Air and Darkness. Titania's sister was corrupted by the negative energy flood, having her physical form destroyed and becoming greatly envious of her sister. She formed the Unseelie Court and the war between the Seelie Fey and the Unseelie Fey. Despite her inherent goodness, the separation from positive energy, the loss of her sister, the negative energy flood, and the war all wore down Titania, leading to her current state of moral ambivalence.

The main residents of the Feywild are True Fey, such as the Archfey, fairies, and satyrs. However, multiple mortal races can be found there. Firsty, the Eladrin (the Sylvan word for 'Returned'), Elves who were in the Feylands when they were sundered into the Feywild. Many Eladrin have rejected their elven origins, and are fully embracing themselves as true Fey. Harengon are also found in the Feywild, using the realm as a place to avoid the influence of the Pantheon of Kalix.

### Ethereal Plane

The Ethereal Plane is both an inner plane and transitive plane. It overlaps all other inner planes, allowing transit between all of them. Hallistar created the Ethereal Plane as a defensive barrier for the Prime Material Plane, the aether of the plane acting as a ward against the influences of extraplanar entities. Ghosts can be found in the Ethereal Plane, as well as creatures that have adapted to its strange form of reality such as Phase Spiders.