Here is my best reconciliation of 4e locations to 3e locations.Astral plane:
same place as in 3e. Dominions include:
ruins of Mechanus, but see the Phrenic Planes below.
previously the 1st layer of Olympus (aka Arborea).
same. aka Tarterus
: same. aka Seven heavens
: previously Acheron (mainly the lowest layer). Still contains Clangor and Nishrek
possible Elysium (i.e. Aurosion is likely the Fortress of the Sun from Elysium's 4th layer). Some of the earthmotes may come from other planes: the Field of Ida is possibly an earthmote from Ysgard's 1st layer.
possibly the ruins of Arcadia. Contains the Citadel Exhalus (previously from the Negative Energy Plane)
• Nine Hells of Baator:
same. Now contains all of the river Styx (which previously touched several planes)
aka Hades. Was previously just the name of the 3rd layer of Hades.
previously Mithardir/Pelion (3rd layer of Arborea, once the home of the Egyptian pantheon). Contains illumian ruins, including the city Elirhonda (previously from the Plane of Shadow).
previously Gehenna. Contains the crawling castle (from Gehenna) and Tiamat's lair (previously from Avernus, Hell's 1st layer)Elemental chaos:
comprised of the previous elemental planes and limbo. Realms include:
• City of Brass
: previously resided on the elemental plane of fire
previously Muspelheim (2nd layer of Ysgard)
previously Niflheim (2nd layer of Hades)
Githzerai monastery previously located in LimboFeywild:
previously called the Plane of Faerie. Also draws from parts of the Beastlands and Ysgard (Alfheim, and Nidavellir in the Feywild underdark). Locations include:
• Court of stars:
previously resided in Arvandor, Arborea. Has been combined with the Seelie court (both have been known to drift around). Titania is now called Tiandra, and Oberon is now known as Oran. Queen Morwel, Faerinaal and Gwynharwyf might still exist in the Faerun version of the Feywild.
• Isle of Dread
: from various prime material planes
• Mag Tureah:
possibly related to the unseelie court from Phlegethon, PandemoniumShadowfell:
previously called the Plane of Shadow. Also incorporates parts of the ethereal plane and plane of negative energy. Locations include:
previously Cabal Macabre from Ocanthus (4th layer of Acheron)
previously resided in it's own cursed demiplane
• Fortress of Conclusion:
previously resided on the plane of negative energy
• Domains of Dread:
previously from the Demiplane of Dread (Ravenloft setting)Phrenic Planes:
• Accordant Expanse
(aka 'Phrenic Plane of Orderly Thought'). Home to Mechanus (aka Nirvana).
• Far Realm:
same as in 3e.
• Plane of Mirrors:
• Plane of Dreams:
Some possible causes for changes:
• (from FRCG p.5) "The Spellplague has drastically altered the cosmos."
"Some ancient realms returned that had been thought gone forever (such as the Feywild), and entire planes (such as the Abyss) shifted to a new cosmic structure
." Many gods died, left, merged or became exarchs. (FRCG p.62) "During the Spellplague, old dominions fell, were merged, or disappeared entirely, and new ones arose.
• (from the FR wiki
and FRCG p.69) "The Shadowfell was created in 1385 DR when Shar, having successfully arranged Mystra's death, bound the energies of the Negative Energy Plane with the Plane of Shadow."
Erik Scott de Bie, co-author
of The Shadowfell) "most of the Raven Queen-related lore is my baby
"I interpret the Raven Queen as basically *being* Wee Jas, albeit having absorbed Nerull's power and become a blacker deity
• (from FRCG p.73) Asmodeus killed Azuth "and consumed his divine essence. He then ended the Blood War by pushing the Abyss to the bottom of the Elemental Chaos
• (from Dungeon Magazine's Savage Tide campaign) Demogorgon's effort to unite his two halves could've created a savage, multiplanar backlash
• (from Expedition to Demonweb Pits) A plot by Lolth could've created a pack between Demon lords, resulting in significant fallout
• Possibly some cosmologist were (or are now) simply incorrect. This is especially likely in regard to creation myths, as no one was around to witness them.
• D&D uses the 'belief affects reality' paradigm, and if everyone now believes that the universe (or a god, or even history) is one way, then it might literally become so.
• Gods can alter their domains, planes (or possibly even history) at a whim
• Maybe Asmodeus released the Erinyes from service (allowing them to become angels of various alignments) in exchange for a pact with the succubi (edit: this might be unlikely now since the Erinyes have returned as devils in MM2)
• Possibly Yugoloths, foreseeing the loss of their neutral planes, found the Abyss easier to occupy en mass than Hell. They resumed the use of their old name "Daemon", which was pronounced (and eventually spelled) the same as "demon".
• Rob Schwalb stated (here
) "almost everything from the Great Wheel cosmology survives in some form or fashion, though recast to fit within the new planar structure
• Astral dominions are still separate planes. Color Veils are essentially just big portals, but they can allow dominions to appear as if floating in the astral sea.
• Each campaign setting technically has it's own overlapping 'version' of these dominions (the overlap of each version might be more a matter of belief rather than actual physicality).
• 4e takes place 100 years after 3.5 in Forgotten realms (104 years according to the dates provide in the campaign books, but there was 4 years between their printing).
• The core setting seems to have also aged 100 years since Greyhawk's 3.5e date, since the Savage Tide Adventure Path was set in the world of Greyhawk, and the Demonomicon (p.68) says: "A little over a century ago, Demogorgon executed a plan to unleash a savage tide of chaos and death across the mortal world."
• Eberron 4e has no advance in the timeline, but was considered far removed from the planescape setting.