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This is a rough idea for a page of a list of realities (parallel universes, alternate timelines, dimensions, etc.). But of course, it's tricky to differentiate those, so at least for now it's one big list. It is not intended to be in-universe in order to provide clearer details. For now I am including things from reference sources even though they are not currently valid sources. (Admittedly, this is mainly for Marvel stuff.)
Also, for now it should be in alphabetical order excluding N-Space. For things without official names (e.g. Parallel universe (Auld Mortality)), let's then alphabetise by story dab. (The exception is numbered suffixes, like the Known Worlds or Universe Two and Universe Three.)
Firsts should explain the first appearance, first mention if it is different, and first use of primary name if applicable/relevant. And for crossover universes, the firsts should reflect their first DWU appearance, mention, name, etc.
This is very much a work in progress. If you want to add or edit something, feel free, and if you have any suggestions or recommendations, please let me know.
| Primary name | First | Other names | Notes |
|---|---|---|---|
| N-Space | TV: An Unearthly Child TV: State of Decay (named) |
Normal-Space (PROSE: Christmas on a Rational Planet) Third Universe (AUDIO: Quinnis, PROSE: Resurrection of the Author) Universe One (TV: Survivors of the Flux) The Totality (PROSE: Collective Unconscious, A Bright White Crack) Home D (AUDIO: Masquerade) Earth-5556 (REF: All-New Official Handbook of the Marvel Universe A to Z #7) |
The "main" universe for Doctor Who stories. |
| Alternate timeline (Aftershocks) | AUDIO: Aftershocks | N/A (no official name) | Alternate timeline of the Warrior's universe where the Unified Skaroan Alliance used the Time Ring left on Skaro to take control of the Time Vortex and conquer Gallifrey. The Warrior used a Carrisent Particum to seal this timeline within infinitely many versions of itself, although he was unsure if it was still in his future or not. |
| Alternate timeline (City of the Daleks) | GAME: City of the Daleks | N/A (no official name) | Alternate timeline where the New Dalek Paradigm repopulated Skaro and exterminated humanity in 1963. |
| Alternate timeline (Father's Day) | TV: Father's Day | N/A (no official name) | Timeline created when Rose Tyler travelled to 1987 and saved her father Pete. This was negated when Pete sacrificed himself anyway to restore the timeline and avoid the Reapers. |
| Alternate timeline (Pyramids of Mars) | TV: Pyramids of Mars | N/A (no official name) | Alternate timeline where Sutekh was released in 1911. By 1980 he had destroyed the Earth. |
| Alternate timeline (Red Planets) | AUDIO: Red Planets (audio story) | N/A (no official name) | Alternate timeline where a bomb went off in East Berlin in 1961, leading to the Soviet Union to install communism in all of Europe, including Mokoshia. |
| Alternate timeline (The Death of Captain Jack) | AUDIO: The Death of Captain Jack | N/A (no official name) | Alternate timeline where Time Agent John Hart married Queen Victoria and became King of the British Empire. As a result of the death of Jack Harkness, this reality collapsed and reverted to the original timeline. |
| Alternate timeline (The Girl Who Waited) | TV: The Girl Who Waited | N/A (no official name) | Amy Pond spent 36 years waiting in the Two Streams Facility. |
| Andrea Yates' World | TV: Whatever Happened to Sarah Jane? | N/A (no official name) | Alternate timeline where Andrea Yates accepted the Trickster's offer for Sarah Jane Smith to die in her place on 13 July 1964. Numerous alien incursions which would have occurred were "turned away" by the Trickster, who intended for the Earth to be destroyed by meteorite K67 in 2008. Unlike another reality created by the Trickster's Brigade, Sarah Jane expressly states that this is not a "parallel world". |
| Anti-matter universe | TV: The Three Doctors | Omega's universe | Pocket dimension made of anti-matter to which Omega was exiled. |
| Arthur's World | TV: Battlefield (mentioned) | N/A | "Another universe" and "another dimension" relative to N-Space. Home to King Arthur and Morgaine, who know the Doctor as Merlin. |
| Barusa's universe | COMIC: Fire and Brimstone (mentioned) PROSE: The Chronicles of Doctor Who? |
N/A (no official name) | Parallel universe, and/or possibly a contradictory, co-existing palimpsest version of N-Space, home to Barusa and his half-human grandson the Doctor, and a variant of Spider Daleks. |
| Bubble universe (The Boy That Time Forgot) | AUDIO: The Boy That Time Forgot | N/A (no official name) | Bubble universe created when the Fifth Doctor subconsciously used Block Transfer Computation to save Adric from the crashing freighter, where Adric survived and ruled over giant scorpions who later sealed off the universe completely. |
| Celestial Toyroom | TV: The Celestial Toymaker | N/A | Pocket dimension containing the Toymaker. |
| Cupid Homeworld | PROSE: Auteur's Abecedarium | N/A | Pocket dimension of the Prime Universe and home to the Crew of the Copper-Colored Cupids. |
| Dawn 1027 | PROSE: A Bright White Crack | N/A | One of the 10,000 Dawns, visited by Chris Cwej. |
| Divergent Universe]] | AUDIO: Zagreus | N/A | Pocket universe held by Rassilon to contain the Divergence. |
| Donna's World | TV: Turn Left | N/A (no official name) | "Parallel world" (TV: Turn Left) created by the Time Beetle where Donna Noble turned right at an intersection, leading to a chain of events where the Tenth Doctor died and the Earth was plunged into chaos. Donna was sent back in time by UNIT to undo this and the timeline ceased to exist. |
| E-Space | TV: Full Circle | Exo-Space-Time Continuum Exo-Space (TV: Full Circle) |
Negative parallel universe to N-Space. (PROSE: Castrovalva) Connected to N-Space via Charged Vacuum Emboitements. |
| Ecto-Space | AUDIO: The Choice | N/A | A "pocket universe" relative to N-Space. Implicitly the same thing as E-Space, but this has never been confirmed. |
| Eleven-Day Empire | PROSE: Unnatural History | N/A | Non-world version of London used as a base by Faction Paradox. |
| The Enclave | PROSE: The Blue Angel | N/A | Pocket galaxy connecting the Obverse to N-Space |
| Federation universe | COMIC: Assimilation² | N/A | Parallel universe home to the United Federation of Planets. "Prime universe" setting of the Star Trek franchise. |
| Fourth universe | TV: The Edge of Destruction (mentioned) AUDIO: Quinnis (appearance) |
N/A | Parallel universe with different time tracks to N-Space. Possibly conflated with the Fourth Galaxy in some sources. |
| Gallifrey's pocket universe | TV: The Day of the Doctor (mentioned) TV: Spyfall (appearance) |
Bubble universe (TV: Spyfall) | Described as both a "parallel pocket universe" and a "another dimension" relative to N-Space. New location of the planet Gallifrey following the Last Great Time War. Gallifrey returned to N-Space at the end of the universe, (TV: Hell Bent) but apparently returned to its "bubble universe". (TV: Spyfall) |
| Germania I | PROSE: Warlords of Utopia | alpha alpha alpha Germania LXIX |
Terra Optimus of the Germanias, worlds where Nazi Germany won WWII. Headquarters of the Council of Hitlers ruling all Germanias in the Greater German Reich. |
| Germania V | PROSE: Warlords of Utopia | N/A | Germania that was conquered by the Roman Empire of Empires. |
| Germania XII | PROSE: Warlords of Utopia | N/A | Germania where America stayed out of WWII. |
| Germania XIII | PROSE: Warlords of Utopia | N/A | Another Germania conquered by the Empire of Empires. |
| Germania XVIII | PROSE: Warlords of Utopia | N/A | Germania that was "onewards" of Germania LXI. |
| Germania XXXII | PROSE: Warlords of Utopia | N/A | One Germania visited by Marcus Americanius Scriptor. |
| Germania LI | PROSE: Warlords of Utopia | N/A | Germania where a great sea battle took place. |
| Germania LXI | PROSE: Warlords of Utopia | N/A | Germania that Germania XVIII was "onewards" of. |
| Germania LXVIII | PROSE: Warlords of Utopia | alpha alpha nine | Germania that had an International Socialist Hitler who was deposed by Germania I and replaced with a Nazi Hitler. |
| Germania CXI | PROSE: Warlords of Utopia | N/A | Another Germania invaded by the Empire of Empires. |
| Germania LD | PROSE: Warlords of Utopia | N/A | Germania where Nazi Germany conquered Great Britain. |
| Germania (beta alpha one five) | PROSE: Warlords of Utopia | N/A | Ernst Rohm murdered and deposed Hitler, but was later himself deposed by Germania I. |
| Godfrey Porter's World | PROSE: The Thief of Sherwood | N/A (no official name) | Doctor Who is a fictional series including the story The Thief of Sherwood. |
| House's universe | TV: The Doctor's Wife | N/A (no official name) | Bubble universe connected to N-Space via a rift, used by House to lure and feed off TARDISes. |
| Inferno universe | TV: Inferno PROSE: The Quantum Archangel (named) |
Inferno Earth (conjectural name) | Parallel universe (TV: Inferno, PROSE: The Schizoid Earth) and/or divergent alternate timeline. (PROSE: The Quantum Archangel, Timewyrm: Genesys) Great Britain is under a fascist regime led by the Leader, and destroyed by the Inferno Project. |
| Kroton universe | COMIC: The Lost Dimension (mentioned) | N/A (no official name) | Parallel universe where the Kroton Imperium is the dominant universal power. |
| Land of Fiction | TV: The Mind Robber | N/A | Fictional sub-dimension outside of time and space inhabited by fictional characters from N-Space. |
| Limbo | TV: Whatever Happened to Sarah Jane? | N/A | Realm inhabited by the Trickster, where individuals he removed from time could be sent. |
| Mictlan | PROSE: Alien Bodies | Hell, Land of the Dead | Extra-dimensional non-world where the Celestis hid from the War in Heaven. |
| Netherweald | PROSE: Against Nature | N/A | Alter-time realm created by Goralschai with a memecore as refuge for House Meddhoran. |
| Obverse | PROSE: The Blue Angel | N/A | Reality with a different nature of time and space, connected to N-Space via the Enclave and the Ringpull. One possible home to Iris Wildthyme. |
| Ogron universe | COMIC: The Lost Dimension (mentioned) | N/A (no official name) | Parallel universe where the Ogron Confederation of Planets is the dominant universal power. |
| Parallel dimension (Telepresence) | AUDIO: Telepresence (mentioned) | N/A (no official name) | Parallel dimension invaded by the Cyber-Mainframe and visited by the War Master. |
| Parallel Earth (Who's Who?) | COMIC: Who's Who? | N/A (no official name) | Technologically advanced 1970s visited by the Third Doctor and Sarah Jane Smith. |
| Parallel universe (Auld Mortality) | AUDIO: Auld Mortality | N/A (no official name) | The Doctor was an author and was brainwashed into becoming Lord President. |
| Parallel universe (Code Silver) | AUDIO: Code Silver (mentioned) | N/A (no official name) | Home to the Cyber-Mainframe. |
| Parallel universe (Deadline) | AUDIO: Deadline | N/A (no official name) | Meta-fiction universe where alterations to the timeline caused Doctor Who to be replaced with Juliet Bravo. Visited by the First Doctor. (PROSE: All Our Christmases) |
| Parallel universe (Exile) | AUDIO: Exile | N/A (no official name) | The Doctor committed suicide to escape the Time Lords and regenerated into a female incarnation who lived in hiding on Earth. |
| Parallel universe (False Negative) | AUDIO: False Negative | N/A (no official name) | UNIT is run by a fascist state and the Doctor supports violence. |
| Parallel universe (Final Genesis) | COMIC: Final Genesis | N/A (no official name) | Parallel world visited by the Seventh Doctor, Ace and Benny where the Third Doctor had successfully arranged peace between humans and Silurians, but died in the process. |
| Parallel universe (Full Fathom Five) | AUDIO: Full Fathom Five | N/A (no official name) | A more ruthless version of the Doctor sought to end genetic experiments at the Deep-sea Energy Exploration Project. |
| Parallel universe (Ghost Machines) | AUDIO: Ghost Machines | N/A (no official name) | Third parallel universe visited by Rose Tyler on her search for N-Space, in which Sir Peter Tyler created an operating system using the minds of the dead. |
| Parallel universe (He Jests at Scars...) | AUDIO: He Jests at Scars... | N/A (no official name) | The Valeyard was successful killing the Doctor in the Matrix during his trial and became immortal. |
| Parallel universe (Lunar Lagoon) | COMIC: Lunar Lagoon | N/A (no official name) | Timeline created by the Monk and Autek's Ice Warriors where the Pacific War lasted into the 1960s. |
| Parallel universe (Palindrome) | AUDIO: Palindrome | N/A (no official name) | The Kaleds and Thals, including Davros, lived in peace on Skaro. |
| Parallel universe (The Endless Night) | AUDIO: The Endless Night | N/A (no official name) | First parallel universe visited by Rose Tyler on her search for N-Space, in which the 2005-2006 invasions of Earth did not occur, Torchwood and UNIT did not exist, and the Sun suddenly burnt out. |
| Parallel universe (The Flood) | AUDIO: The Flood | N/A (no official name) | Second parallel universe visited by Rose Tyler on her search for N-Space, in which the Earth was pulled towards the Sun by an extraterrestrial force, causing rapid climate change. |
| Parallel universe (The Girl Who Loved Doctor Who) | COMIC: The Girl Who Loved Doctor Who | N/A (no official name) | Meta-fiction universe visited by the Eleventh Doctor. |
| Parallel universe (The Last Party on Earth) | AUDIO: The Last Party on Earth | N/A (no official name) | Fourth parallel universe visited by Rose Tyler on her search for N-Space, in which the 2005-2006 invasions of Earth did not occur, and a destructive meteor was approaching the Earth. |
| Parallel universe (The Schizoid Earth) | PROSE: The Schizoid Earth | N/A (no official name) | Parallel universe "in between" N-Space and the Inferno universe; native universe of Alastair Lethbridge-Stewart. |
| Parallel universe (TV Action!) | COMIC: TV Action! | N/A (no official name) | Meta-fiction universe visited by the Eighth Doctor and Beep the Meep. |
| Parallel universe of the Cla'tac'teth | PROSE: The Quantum Archangel | Realm of the Cla'tac'teth Cla'tac'teth reality (PROSE: The Quantum Archangel) |
The Fourth Doctor failed to stop the entropy wave unleashed by the Tremas Master in 1981, causing the universe's heat death. Visited by the Sixth Doctor and the Master. |
| Pete's World | WC: Tardisode 5 TV: Doomsday (named) |
N/A | Parallel universe where Peter Tyler is alive; home to the Cybusmen. May have diverged in 1879 when Queen Victoria was killed by the werewolf. (REF: Creatures and Demons) |
| Prime Universe | PROSE: Auteur's Abecedarium (mentioned) | N/A | Parallel universe using the same naming convention as "Third Universe" and "Fourth Universe", as further established in The Crew of the Copper-Colored Cupids story The Grand Multiverse Hotel. Native universe of the Crew of the Copper-Colored Cupids and ostensibly the Disney Comics Universe. |
| Quark universe | COMIC: The Lost Dimension (mentioned) | N/A (no official name) | Parallel universe where Quarks are the dominant universal power. |
| Ringpullworld | AUDIO: Ringpullworld | N/A | Micro-universe contained within a can of beans on the planet Must. |
| River Song's World | WC: Prequel to The Wedding of River Song | N/A (no official name) | River Song refused to shoot the Eleventh Doctor (actually the Teselecta) at Lake Silencio, interfering with that event's fixed point in time and causing all of Earth history to occur at once. Negated when River kissed the Doctor, their physical contact allowing her to shoot the Teselecta. |
| "Robot universe" | COMIC: The Incomplete Death's Head (mentioned) | Earth-120185 (REF: All-New Official Handbook of the Marvel Universe A to Z #3) | Reality home to massive warring robots, to which Death's Head was brought to by the Seventh Doctor. Setting of the Transformers (UK) Marvel comic. |
| Roma I | PROSE: Warlords of Utopia | N/A | Terra Optimus of the Romas, worlds where the Roman Empire never fell. Home to Marcus Americanius Scriptor and the most influential member of the Empire of Empires, the group uniting the Romas. |
| Roma II | PROSE: Warlords of Utopia | N/A | Roma that was ravaged by plague. |
| Roma III | PROSE: Warlords of Utopia | N/A | Roma where Yung Lo became Emperor of the World, but the Seres decamped to Rome. |
| Roma IV | PROSE: Warlords of Utopia | N/A | Roma where some Christians broke away from Mithraism. |
| Roma V | PROSE: Warlords of Utopia | N/A | Roma where the Mare Nostra was drained to irrigate the Sahara Desert. |
| Roma VI | PROSE: Warlords of Utopia | N/A | Roma led by Diana where women were considered the dominant gender. |
| Roma VII | PROSE: Warlords of Utopia | N/A | Roma where Constantinople was the capital of the empire. |
| Roma VIII | PROSE: Warlords of Utopia | N/A | Roma where Rome was influenced by Egypt instead of Greece due to them winning the Battle of Actium. |
| Roma XI | PROSE: Warlords of Utopia | N/A | Roma where wealth went to the Emperor instead of being inherited. |
| Roma XIII | PROSE: Warlords of Utopia | N/A | Roma with a culture obsessed with death and the afterlife, and did not join the Empire of Empires. |
| Roma XX | PROSE: Warlords of Utopia | N/A | Roma where no gods were worshipped. |
| Roma XXXI]] | PROSE: Warlords of Utopia | N/A | Roma where the Senate could veto the Emperor, and the Gauls had an uprising. |
| Roma LVIII] | PROSE: Warlords of Utopia | N/A | Roma where Christianity was the official religion. |
| Roma LXIX | PROSE: Warlords of Utopia | N/A | Roma with a culture obsessed with sex and fertility. |
| Roma CI | PROSE: Warlords of Utopia | N/A | Roma similar to Roma LVIII, but Mithraism was the official religion instead. |
| Roma CLI | PROSE: Warlords of Utopia | N/A | Roma that fought the Greater German Reich with odd methods. |
| Roma CLII | PROSE: Warlords of Utopia | N/A | Roma where dinosaurs had not gone extinct even in Roman times, but soon a terrible disaster occurred and killed most life. |
| Roma CCII | PROSE: Warlords of Utopia | N/A | Roma that was second-highest to Roma I. |
| Roma CCIV | PROSE: Warlords of Utopia | N/A | Roma that was considered among the "least blessed". |
| Roma D | COMIC: Doctor Who and the Iron Legion PROSE: Warlords of Utopia (named) |
N/A | Roma whose Iron Legion of clockwork robots intended to conquer the galaxy and other universes, once visited by the Fourth Doctor. |
| Roma DI | PROSE: Warlords of Utopia | N/A | Roma with a Senate made of wood. |
| Roma DII | PROSE: Warlords of Utopia | N/A | Roma home to the protocol druids. |
| Roma DC | PROSE: Warlords of Utopia | N/A | Roma on the edge of the Divide. |
| Roma DCII | PROSE: Warlords of Utopia | N/A | Roma where women could have three husbands. |
| Roma DCX | PROSE: Warlords of Utopia | N/A | Roma with two separated, warring Christian Roman Empires, the first invaded by the Greater German Reich. |
| Roma DCXXI | PROSE: Warlords of Utopia | N/A | Roma on the edge of the Divide that was the farthest world of the Empire of Empires until it began invading the Germanias. |
| Sanctum of the Heretic | PROSE: Resurrection of the Author | N/A | Oxbow reality created by Auteur, in which he got trapped in when the noble-woman undid it. Heavily implied to be Donna's World. |
| Sea Devil Earth | COMIC: A Little Help from My Friends | N/A (no official name) | Alternate timeline where the Skithra successfully kidnapped Nikola Tesla and Thomas Edison in 1903, and used Sea Devils to conquer Earth. The Tenth and Thirteenth Doctors went back to prevent this from ocurring. |
| Shadow-Space | AUDIO: Masquerade | N/A | Artificial pocket dimension created for storing consciousnesses of crew members during warp drive travel. |
| Spiral Yssgaroth | TV: State of Decay (mentioned) PROSE: The Pit (appearance) PROSE: The Book of the War (named as "the Spiral Yssgaroth") |
The Yssgaroth's universe (PROSE: The Pit) The reservoir of evil/reservoir of pain (HOMEVID: The Zero Imperative) |
Parallel universe with entirely different physical laws to the "Spiral Politic"/N-Space. (PROSE: The Book of the War) |
| The Mentor's World | AUDIO: Project Infinity (mentioned) AUDIO: Dalek War: Chapter Four (appearance) |
N/A (no official name) | Home universe of the Mentor, creator of the Alliance Daleks. |
| The Trickster's World | TV: The Temptation of Sarah Jane Smith | N/A (no official name) | Alternate timeline created when a time travelling Sarah Jane Smith saved the lives of her parents on 18 August 1951, allowing the Trickster to emerge and seize the Earth, driving humanity to near-extinction by 2009. |
| The Warrior's universe | AUDIO: Dust Devil | N/A (no official name) | Diverging timeline where the Fourth Doctor intentionally destroyed the incubators during the Genesis Incident, regenerating into the Warrior and causing the Time War to occur much earlier. |
| The Year That Never Was | TV: The Sound of Drums | N/A | Alternate timeline where the Saxon Master and the Toclafane conquered and ruled over Earth for a year. |
| Timeless Child's realm | TV: Spyfall | N/A (no official name) | Realm where Tecteun found the Timeless Child beneath a wormhole, which she believed to be Universe Two. |
| Timeline (Orphan 55) | TV: Orphan 55 | N/A (no official name) | "Possible future" of 2020 where global warming and nuclear war turned the Earth into an orphan planet (Orphan 55) inhabited by Dregs. |
| Unbound Universe | AUDIO: Sympathy for the Devil PROSE: Legacy Presence (named) |
N/A | Parallel reality where the Unbound Doctor was exiled to Hong Kong in 1997. Connected to N-Space via the Gateway. |
| Universe Two | TV: Survivors of the Flux | N/A | Parallel universe that was a destination of the Division, and hypothesised by Tecteun to be the Timeless Child's realm. |
| Universe Three | TV: Survivors of the Flux (mentioned) | N/A (no official name) | A universe beyond Universe Two. |
| Word Lord universe | AUDIO: The Word Lord (mentioned) | N/A (no official name) | Parallel dimension 45 billion universes to the left of N-Space, home to the Word Lords. |