Planes, dimensions, worlds
by RipvanwormerWorlds of the Prime Plane
Mystara—Rules Cyclopedia, et al.
Aelos—Where Chaos Reigns
Galactic Federation—DA3 City of the Gods
Oerth—The Book of Wondrous Inventions
World of the Masters—Dragonmage of Mystara
Star Kingdoms (Old Alphatia)—M1 Into the Maelstrom
SpillWorld—Dawn of the Emperors
Center of the Galaxy—IM1
Alpha Centauri—Immortals Set
Sirius—Immortals Set
Epsilon Eridani—Immortals Set
Procyon—Immortals Set
61 Cygni—Immortals Set
Tau Ceti—Immortals Set (Aquaria/Oerth)
Altair—Immortals Set
Dimensions
Multiverse Dimension—Wrath of the Immortals
Land of Mists—Castle Amber, Mark of Amber
Dimension of Myth—Castle Amber, Wrath of the Immortals
Dimension of Nightmare—Immortal Set, Wrath of the Immortals
World of the Abelaats—Penhaligon Trilogy
Dimensional Vortex—Immortals Set, IM1
Transitive Planes
Ethereal Plane—Companion Set
Astral Plane—Master Set
Elemental Planes
Elemental Plane of Water—Companion Set
Elemental Plane of Fire—Companion Set
Elemental Plane of Air—Companion Set
Elemental Plane of Earth—Companion Set
Elemental Plane of Wood—Dave Arneson's Blackmoor, possibly became the Feywood
Elemental Plane of Metal—Dave Arneson's Blackmoor, probably destroyed in the Great Rain of Fire, its shattered remnants still seen in the Astral and Ethereal planes
Outer Planes
Limbo—Dragon #180
The Spirit World—Gaz 11
The Feywood—PC 1
Candyland—Gaz 3
Carceri (Utukku home plane)—Savage Coast Monstrous Compendium
Plane of Shadows—Savage Coast Monstrous Compendium (probably the same as the Dimension of Nightmare)
Serpentia—IM3
The Warren—IM3
Grogggor—IM3
Draconic Cluster—Dragon #158
Draconic Plane—Dragon #170
Draedenden—IM3
Arcade—IM3
Wyrm—IM3
Morcellate—IM3
Pyx—IM3
Infuma—IM3
Lopadotemachoselachogaleokranioleipsanodrimhypotrimmatosilphioparaomelitokatakechymenokichlepikossyphophattoperisteralektryonoptekephalliokigklopeleiolagoiosiraiobaphetraganoppterygon—IM3
Rocta—IM3
Splacknuck—IM3
Typp—IM3
Unsoncy—IM3
Partheniad—IM3
Gargantua—IM3
Nubilate—IM3
Paradise—IM3
Thoke—IM3
Slobbovia—IM3
Newmarket—IM3
Scriniary—IM3
Zelotypia—IM3
Hades—IM3
Corridor—IM3
Lodestar (Mazikeen's home plane)—IM3
Nous (Pharamond's home plane)—IM3
Plane of N'Grath—IM1
Aquarianus (Calitha Starbrow)—Warriors of Heaven
Arvandor (Eiryndul, Faunus, Mealiden Starwatcher, Ordana, Ilsundal)
Arvenna (Tarastia)—Warriors of Heaven
Asgard (Frey, Freyja, Forsetta, Noumena, Odin, Loki)—On Hallowed Ground, Warriors of Heaven
Azcan Plateau (Atruaghin)—Warriors of Heaven
Brightwater (Tyche, Valerias)—Warriors of Heaven
City of the Star (Diulanna)
Clangor (Wogar)—On Hallowed Ground
Draukari (The Shining One)—On Hallowed Ground
Gaping Maw (Demogorgon)—On Hallowed Ground
Golden Hills (Asterius, Garal Glitterlode, Kagyar)—On Hallowed Ground, Warriors of Heaven
Goldfire (Alphatia)—Warriors of Heaven
Great Mother's Garden (Djaea)—Warriors of Heaven
Hall of Arms (Halav)—Warriors of Heaven
Hall of the Granite Tree (Razud)—Warriors of Heaven
Heart's Faith (Koryis)—Warriors of Heaven
Heldannis (Vanya)—Warriors of Heaven
Heliopolis (Noumena)—Warriors of Heaven
Home (Terra)—Warriors of Heaven
Library of All Knowledge (Ka)—Warriors of Heaven
Merratet (Bastet)—On Hallowed Ground
Nest of the Phoenix (Ixion)—Warriors of Heaven
Niflheim (Hel)—On Hallowed Ground, Gaz 7
Nishrek (Karaash)—On Hallowed Ground
Njarlok (Rathanos)—Warriors of Heaven
Pax Benefice (Rafiel)—Warriors of Heaven
Pool of Luminescence (Rad)—Warriors of Heaven
Recluse (Zirchev)—Warriors of Heaven
Seeing Glade (Ka)—Warriors of Heaven
Sentinel Tower (Petra)—Warriors of Heaven
Shatterstone (Jammudaru)—On Hallowed Ground
Spuma (Protius)—Warriors of Heaven
Temple of the Jackal (Pflarr)—Warriors of Heaven
Vanaheim (Frey, Freyja)—Gaz 7
Well of Urd (Skuld)—On Hallowed Ground
Wheel of Time (Khoronus)—Warriors of Heaven
Winter's Hall (Loki)—On Hallowed Ground
Yeenoghu's Realm (Yeenoghu)—On Hallowed Ground
Atzanteotl's Realm (Orcs of Thar Gazetteer)
Ether Weird home plane (Kingdom of Ierendi)
Brynn—Wrath of the Immortals
Chasm—IM5
Draesten—Wrath of the Immortals
Eloysia—M4
Entrem—Wrath of the Immortals
Grand Arena—IM3
Isle of Night—M5
Jotunheim—Gaz 7 The Northern Reaches
Kryla—IM2
Maze—Companion Set (May just be a construct in the Astral Plane rather than a true outer plane)
Negative Energy Plane (home plane of nightshades)—Mystara Monstrous Compendium
Pits of Banishment—M3
Plane of the Notions—IM1
Plane of the Tonals—IM1
Plane of Technology—IM1, The Book of Wondrous Inventions
Plane of Vacuum (home plane of spectral deaths)—Mystara Monstrous Compendium
Pyts—IM2, Wrath of the Immortals
Magic Rainbow—CM7
Rainbow Bridge—Gaz 7
Rylum—IM2
Ryolite (Utanapushtim)—IM3
Seven Realms—M3 (the same as the Lands of Colors from CM7?)
Skarda's Mirror—X12
Svartalfheim—Gaz 7
Swergheim—Gaz 7
Tempus (Fugit)—IM2
Thorne—IM5
Yggdrasil—Gaz 7