Outer Plane

In the fantasy role-playing game Dungeons & Dragons, an Outer Plane is one of a number of general types of planes of existence. They can also be referred to as godly planes, spiritual planes or divine planes. The Outer Planes are home to beings such as deities and otherworldly creatures such as demons, celestials and devils. Each Outer Plane is usually the physical manifestation of a particular moral and ethical alignment and the entities that dwell there often embody the traits related to that alignment.

The intangible and esoteric Outer Planes—the realms of ideals, philosophies, and gods—stand in contrast to the Inner Planes, which compose the material building blocks of reality and the realms of energy and matter.

All Outer Planes are spatially infinite but are composed of features and locations of finite scope. Many of these planes are often split into a collection of further infinites called layers, which are essentially sub-planes that represent one particular facet or theme of the plane. For example, Baator's geography is reminiscent of Hell as depicted in Dante's The Divine Comedy. In addition, each layer may also contain a number of realms. Each realm is the home to an individual deity, or occasionally a collection of deities.

Publication history
The Outer Planes were presented for the first time in Volume 1, Number 8 of The Dragon, released July 1977. In the article "Planes: The Concepts of Spatial, Temporal and Physical Relationships in D&D", Gary Gygax mentions that there are 16 Outer Planes and describes the Seven Heavens, the Twin Paradises, and Elysium as "Typical higher planes", Nirvana as the "plane of ultimate Law" and Limbo as the "plane of ultimate Chaos (entropy)", and the Nine Hells, Hades' three glooms, and the 666 layers of the Abyss as "Typical lower planes". Other Outer Planes mentioned by name in the article include the Happy Hunting Grounds, Olympus, Gladsheim, Pandemonium, Tarterus, Gehenna, Acheron, and Arcadia. The Outer Planes were presented again in an appendix of the known planes of existence in the original (1st edition) AD&D Players Handbook, published in June 1978. This appendix included an abstract diagram of the planes, and mentioned the same 16 Outer Planes: The Seven Heavens of absolute lawful good, the Twin Paradises of neutral good lawfuls, the planes of Elysium of neutral good, the Happy Hunting Grounds of neutral good chaotics, the planes of Olympus of absolute good chaotics, the planes of Gladsheim (Asgard, Valhalla, Vanaheim, etc.) of chaotic good neutrals, the planes of Limbo of neutral (absolute) chaos (entropy), the Planes of Pandemonium of chaotic evil neutrals, the 666 layers of the Abyss of absolute chaotic evil, the planes of Tarterus of evil chaotic neutrals, Hades' "Three Glooms" of absolute (neutral) evil, the furnaces of Gehenna of lawful evil neutrals, the Nine Hells of absolute lawful evil, the nether planes of Acheron of lawful evil neutrals, Nirvana of absolute (neutral) lawfuls, and the planes of Arcadia of neutral good lawfuls.

Standard D&D cosmology
The standard Dungeons & Dragons (D&D) cosmology contains seventeen Outer Planes. Cosmologically, they are arranged in a ring of sixteen planes with the Good-aligned planes, or Upper Planes at the top, and the Evil-aligned planes, or Lower Planes at the bottom. The Lawful planes (or Planes of Law) sit to the left, and the Chaotic planes (or Planes of Chaos) to the right. Between all of these sit the Neutral planes, or the Planes of Conflict. One further plane sits in the centre of the ring, the Outlands, being neutral in alignment. At the center of the Outlands is a Spire of infinite height; the city of Sigil floats above the Spire's pinnacle. The standard D&D cosmology is the official cosmology used in the Planescape and Greyhawk campaign settings. Many of the alternative names derive from the 1st-edition Manual of the Planes (1987, ISBN 0-88038-399-2), and the in-game explanation given in the Planescape setting is that these names are used by the "Clueless", or characters from the Prime Material unfamiliar with the planes.

Forgotten Realms cosmology
The Forgotten Realms cosmology was originally the same as that of a standard Dungeons & Dragons campaign. The cosmology for the 3rd edition of D&D was altered substantially so that it contained twenty-six Outer Planes, arranged in a tree-like structure around the central 'trunk' of the material plane of Toril. Unlike the Outer Planes of the standard D&D cosmology which were heavily alignment-based, the Outer Planes of the Forgotten Realms cosmology were faith-based. The planes of the Forgotten Realms were retooled in the 4th edition to match the new default cosmology, with many of the planes or realms being relocated to the Astral Sea, and a handful now located in the Elemental Chaos.


 * The Abyss
 * Arvandor
 * The Barrens of Doom and Despair
 * Blood Rift
 * Brightwater
 * Clangor
 * Deep Caverns
 * The Demonweb Pits
 * Dragon Eyrie
 * Dwarfhome
 * Dweomerheart
 * The Fated Depths
 * Fury's Heart


 * The Gates of the Moon
 * Golden Hills
 * Green Fields
 * Hammergrim
 * Heliopolis
 * The House of Knowledge
 * The House of Nature
 * The House of the Triad
 * Jotunheim
 * The Nine Hells
 * Nishrek
 * The Supreme Throne
 * Warrior's Rest

The Barrens of Doom and Despair plane is designed to be inhospitable to Dungeons & Dragons players. Even though there is little light or water, other characters from the franchise can be found here. Five deities make their homes here, including Bane (his home was previously referred to as Acheron), Beshaba, Hoar, Loviatar, and Talona. The Barrens of Doom and Despair consist of a single infinite plane, with no constituent layers. It links via the Astral Plane to the planes of the Prime Material (such as Toril) and a number of portals directly connect it with Hammergrim and the Blood Rift. Beshaba's realm, the Blood Tor, links directly to the Abyss.

Eberron cosmology
This is a description of the Eberron Cosmology prior to the Eberron fourth edition rules. For 4th edition cosmology information, please see World of Eberron.

The Eberron cosmology, used in the original Eberron campaign setting, contained thirteen Outer Planes in 3rd edition, and gained at least two for 4th edition under the new cosmology. They exhibit traits similar to those of the standard D&D cosmology but also some (Irian, Mabar, Fernia, and Risia) appear more like Inner Planes. The cosmology was unique in that the Outer Planes orbited around Eberron through the Astral plane, now they are floating like other planes in the Astral sea. As they orbited, their overlap with the material plane changed and access to those planes became easier or restricted.

See also Chapter 5 of the Eberron Campaign Setting

Like most other D&D campaign settings, in 3rd edition D&D Eberron has a number of planes. Besides the Prime Material Plane, the Ethereal Plane, the Plane of Shadow, and the Astral Plane, the Eberron Campaign Setting has thirteen relatively unique planes. Gates or portals to any of the planes are very rare. These thirteen planes metaphysically orbit around Eberron, and depending on their current location are considered in one of four states.


 * Waxing/Waning - The plane is either approaching or moving away from Eberron. Planar travel occurs as normal.
 * Coterminous - The plane actually touches Eberron, and certain effects are strengthened in Eberron. Also, it may be possible to travel between planes by going to an appropriate spot. For example, when Risia, the Plain of Ice is coterminous, one may enter the plane from Eberron by walking into a blizzard. Because of seals placed by the Gatekeeper druids, Xoriat, the Realm of Madness, is incapable of becoming coterminous with Eberron.
 * Remote - The plane is furthest from Eberron, and certain effects are weakened in Eberron. Also, reaching a remote plane with the spell plane shift is difficult and requires a high Spellcraft DC check. Because of the conflict between the Quori and the giants of Xen'drik, Dal Quor is always considered remote from Eberron.

4th Edition Cosmology
In the 4th Edition, most of the Outer Planes have been replaced by Astral Domains in the Astral Sea. Known Astral Domains include Celestia and the Nine Hells. The Abyss is an exception; it is now located in the Elemental Chaos.