DIMENSIONS
These profiles refer to other realms outside of the mainstream Earth of Marvel Comics (also sometimes referred to as Earth-Prime, Earth-616). They include alternate realities and timelines, alien worlds, pocket realms, etc.
Alternate Earths has/have a separate page.
Dimensions (with descriptions)
Note: In addition, at the bottom, there's a link to some of the past eras of the Marvel Universe (just started it)
Acid-Rain World (Crossroads)
Aegis (Microverse planet) - by Grendel Prime
Amalgam Universe (Earth-9602) - by Skullogeist
Amazar (destroyed by Lore)
Andromeda's Graveyard (Crossroads)
Anesthesia (Fantastic Four story) - by Markus Raymond
Ankh Dimension (Zodiac Cartel)
Apokolips of Reality-9602 (Amalgam Universe)
Arakne (Knights of Pendragon story)
Astral Wastes (Inner Space)
Avalon (home of Celtic Gods, etc) - by William & Snood
Badlands (Demon Bear dimension, New Mutants/X-Force) - by Proto-Man
Baloney-verse (Encroachiverse) - by Will U
Barren World (Crossroads)
Bast (Microverse realm, Iron Man story)
Bermuda Triangle (Skull the Slayer)
Bewilderness (realm of Psyphon)
Biphasia (encountered by Werewolf)
Black Sea Dimension (Namor story)
Boreas (Iceworld of Ikthalon)
Borders of the Land of the Dead (Defenders story) - by Chadman
Brilliant City (X-Man story)
Burning World (Crossroads)
Cloudsea (Spindrifter, encountered by Spider-Man)
Collective's World (Crossroads)
Cosmic Void (Inner Space)
Creation II (Creators)
Crooked World (Earth-238) - by Loki
Crossroads (and it's associated dimensions, former prison of Hulk) - by Anti-Grimm
Crossroads of Time (Time Guardian)
Crystalium (home of Crystar) - by David Lawrence
Cyclopedia Universum (Watcher dimension) - by Proto-Man
Dark Dimension (home of Val-Larr)
Dark Dimension (home of Dark Crawler)
Dark Place (accessed by Mercy)
Dead World (Crossroads)
Death Dimension (ruled by Melinda Morrison, Spider-Man/Dr. Strange stories)
Decyst's World (Crossroads)
Demolition City (Crossroads)
demon realm (alien dimension, connected to Black Mirror)
Demon World of the N'Garai (Collective's World)
Desert World (Andromeda's Graveyard)
Devil World (Crossroads)
Dimension II (Otkid's dimension)
Dimension of Doom (2-D Men) - by Ben Penberdy
Dimension of Raggadorr (magical realm, Doctor Strange stories) - by Spidermay
Dimension of Suicide (Encroachiverse) - by Will U
Dimension of the Eye of Odin (Thor story)
Dimension which the Creature was shunted into by Giggles (might by Dormmamu’s)
Dimension Z (Living Eraser(s) )
Don't-Worry-Be-Happy-Verse (Encroachiverse, Earth-90313) - by Will U
"Drakos" (Shazana)
Dread Veil plane of reality-8116 (home of Taurus Killgaren)
"Duckworld" (Howard the Duck's altered reality homeworld)
Earth - links to all Alternate Earths
Egolix-7 (xd realm, home of Maya, adoptive home of Darklore, Adam Warlock stories)
Elsewhen (Warlord Kargul)
Elsewhere (Power Pack costume dimension)
Encroachiverses (She-Hulk dimensions) - by Will U
Enitharmon's dimension (Dr. Strange story)
Erebus (region of Hades where souls reside before either returning to life or passing on into the afterlife) - by Proto-Man
Far Place of New Universe (imaginary world)
Femizonia (Earth-715)
Feng-Tu (Realm of Death for Chinese Gods and K'un L'un) - by Will U
Fiame (Microverse planet) - by Grendel Prime
Fifth Dimension (Xemu)
Fractal Mountain Range (Inner Space)
Furry Blue People World (Crossroads)
Glob World of Floating Things (Crossroads)
Guildern (Dark Angel & Wild Thing story, Marvel Italia)
Half-World Dimension (ruled by Witch Queen)
Halls of Fear (Dweller-in-Darkness)
Haven (Phaedra's dimension)
Hell of Vârcolac (Werewolf by Night story)
Here (And There) (Defenders world) - by Chadman
Idolworld (Crossroads)
Inner Space (Dark Angel (Shevaun Haldane) astral dimension) - by Changeling
Inniverse (Fantastic four realm)
Insipiverse (Encroachiverse) - by Will U
Interzone (junction b/t Nexi of Reality)
Iskelior's realm (Dr. Strange story)
Iuriale's realm (Dr. Strange story)
Kageumbra (shadowy home dimension of Kimora) - by Proto-Man
Khaa (home of Bellil; Conan story)
Kingdom of Coma (Fantastic Four story) - by Markus Raymond
Kosmos (Creatures)
Krampus' Hell (ruled by Krampus)
K'un-Lun of reality-14116 (Wendell Rand survived)
Land of Legends (Captain America story) - by Proto-Man
Land of Shades (Olympian banishment realm) - by Proto-Man
Land of Shades (Death Dimension)
Land of Spring of New Universe (Far Place)
Land of Winter of New Universe (Far Place)
Last Hills of Earth-13729 (underworld of dimension K'Vore) - by Proto-Man
Lost Land (Jaggta-Noga's home-dimension)
Luminia (Iron Man story)
Machus (Earth-74101)
Media-verse (Encroachiverse) - by Will U
Mega IV (unknown destination, Monark Starstalker reality)
Megrim (Sombra/Bzzk'Joh)
Microverse (links only)
Mindscape (Sleepwalker's realm) - by Changeling
Mist World (Crossroads)
Mojoverse (links only)
Mystic Wates of the Lowlands (Inner Space)
Myth-Realm (alien world visited by Hulk)
Narcissi-verse (Encroachiverse) - by Will U
Narcisson (dimension and city of the Dark Gods)
Negative Zone (links only)
Netherworld of Eternal Doom (Demon of the Mask)
Never Hills (ever-changing Dark Dimension region) - by Proto-Man
Never-Summer (Microverse planet) - by Grendel Prime
New Asgard of Reality-9602 (Amalgam Universe)
976-verse (Encroachiverse, Earth-90715) - by Will U
Noriega-verse (Encroachiverse) - by Will U
No-Space (Time Guardian)
Ocean World (Crossroads)
Octopod World (Crossroads)
Other-Earth (Earth-6311, Fantastic Four story)
Other Realm (Home dimension of Star-God)
Otherworld (Avalon) - by Will U & Snood
Palace of Death and Rebirth (Anubis)
Paradise and the City of Death (Crossworlds, Hulk characters) - by Anti-Grimm
Perrinois (Spider-Man/Fantastic Four story)
Phaedra's dimension (Haven)
Planets Perilous (home dimension of Nebulos)
Puppet-verse (Encroachiverse) - by Will U
Purple Dimension (Aggamon)
Purple Giant World (Demolition City)
Purple Veil (Purple Dimension)
Purple World of Exile (Zgorian's World, Crossroads)
Quadriverse (Dr. Strange)
Radiation Monster World (World of Radiation-Eaters)
Raggadorr Dimension (magical realm, Doctor Strange stories) - by Spidermay
Rammatpolen (home of Dragon Riders) - by Prime Eternal
Realm of Abstract Perception (Muse's dimension, Blonde Phantom story)
Realm of Exiles (Nightmare story)
Realm of Madness (demon dimension) - by Markus Raymond
Realm of Nothingness (Abysss)
Realm of Shadows (Death Dimension)
"Realm of Unreality" (Rom story)
Runestaff dimension (Thor story)
Saku (Spider-Man story)
Sandt (dimension, Man-Thing story)
Saurian World (Crossroads)
Schwarzraum (realm associated with Mephisto's Hell)
Searland (Biphasia)
Shadow-Earth (Genghis Grimtoad's world)
Shadow-Lands (Jugarta home dimension, Chane story)
Shadow Realm (alien dimension) - by Prim Eternal
Shadow-Realm (Biphasia)
Shadow Realm (home of Dark Crawler)
Shadowverse (Shadow Realm)
"Shadowy" dimension (Fates home dimension)
Shattered Lands (Great Beasts' realm, Alpha Flight stories) - by Proto-Man
Sixth Dimension (Tiboro)
Skyshark World (Crossroads)
Slaveworld (Kulla)
Sphere (Microverse planet)
Stormking (planet, Monark Starstalker reality)
Strange Matter dimension (Shanzar)
Styrakos (Death’s Head (FPA) )
Super-Hero Dead Zone (Inner Space)
Swamp World (Crossroads)
Sylos VII (Microverse planet)
Tartarus (realm of Pluto) - by Will U & Prime Eternal
Tartessus' extradimensional realm (Dr. Strange story)
Terragonia (Kronak the Barbarian)
Therea (Zokk/Maftra, Man-Thing story)
"Timestream" (Conan story)
Toad World (Crossroads)
Tornado World (Crossroads)
Trashi-verse (Encroachiverse) - by Will U
Tunnelworld (Defenders saga)
"Twilight World" (1960s, prehistory world) - by Ron Fredricks
Universe-Two of Reality-9602 (Amalgam Universe)
Upper Realm (Inner Space)
Vidiot dimension (television-obsessed realm) - by Proto-Man
Underwater World (Crossroads)
Vacuum World (Dead World)
Void (Realm of Nothingness, Abyss)
War World (Crossroads)
Wasteland (Rose of Purity)
Water World (Underwater World)
Web (Web-Spinners)
Weirdworld (fantasy realm) - by Prime Eternal
White Room (alien dimension) - by Prime Eternal
Wildways (dimensional crossroads) - by Proto-Man
"Will This Be the End of The World?" world (micro-world) - by Prime Eternal
Wind World (Tornado World)
Winterland of New Universe (Far Place)
World Beyond (Odin aspect Infinity's dimension)
World of Quicksand (Crossroads)
World of Radiation-Eaters (Crossroads)
World of Robots (Crossroads)
World of Symbionts (Crossroads)
Xandu's dimension (Spider-Man/Dr. Strange stories)
Yann (xd, Yandroth homeworld) - by Chadman
Yellow Dwarf World (Crossroads)
Zendu (Tales to Astonish)
Zephyrland (Namor characters)
Zero Street (actually the dimension around it)
Zianon (Cloak & Dagger/Ghost Rider story)
other Eras