History Doorstopper / FanWorks

* ''Fanfic/TheNewAdventuresOfInvaderZim'' is a multi-volume SeriesFic, of which Season 1 clocks out at nearly 233,000 words, while the currently ongoing Season 2 is already over 157,000 words, bringing the series to over 390,000.

* ''Fanfic/TheLoudHouseRevamped'', a ''WesternAnimation/TheLoudHouse'' MassiveMultiplayerCrossover fanfic, dethroned ''Fanfic/AmbienceAFleetSymphony'' to become not just Website/FanFictionDotNet's longest ongoing fanfiction, but the site's longest fanfic ever and the longest piece of literature ''in recorded history''. As of December 2023, it sits at over 31.5 million words across 2,277 chapters. It's actually so long that ''it broke Fanfiction.net's word count''; meaning no one except the author knows what the actual word count is, as it can't display anything higher than 16,777,215 (the site uses 24-bit integers). For the curious: it's a self-insert fanfic wherein the protagonist joins with the Loud House to combat evil forces. Most of the text, however, is in script format and consists of one-liners and [[UsefulNotes/{{Plagiarism}} copy-pasted fan wiki entries]].

* ''Fanfic/StevenUniverseAlternateFuture'' was completed on November 1st, 2021, at 188,791 words spread out over 32 chapters.

* ''Fanfic/TheLoudHouseRevamped'', a ''WesternAnimation/TheLoudHouse'' MassiveMultiplayerCrossover fanfic, dethroned ''Fanfic/AmbienceAFleetSymphony'' to become not just Website/FanFictionDotNet's longest ongoing fanfiction, but the site's longest fanfic ever and the longest piece of literature ''in recorded history''. As of November 2023, it sits at over 16 million words across 2,268 chapters. It's actually so long that ''it broke Fanfiction.net's word count''; meaning no one except the author knows what the actual word count is, as it can't display anything higher than 16,777,215 (the site uses 24-bit integers). For the curious: it's a self-insert fanfic wherein the protagonist joins with the Loud House to combat evil forces. Most of the text, however, is in script format and consists of one-liners and [[UsefulNotes/{{Plagiarism}} copy-pasted fan wiki entries]].

* Creator/Iron117Prime's first series, ''Fanfic/FrozenTurtles'', a crossover between ''WesternAnimation/{{Frozen}}'' and ''WesternAnimation/TeenageMutantNinjaTurtles2012'', is at 525,812 words.

* ''Fanfic/TheLoudHouseRevamped'', a ''WesternAnimation/TheLoudHouse'' MassiveMultiplayerCrossover fanfic, dethroned ''Fanfic/AmbienceAFleetSymphony'' to become not just Website/FanFictionDotNet's longest ongoing fanfiction, but the site's longest fanfic ever and the longest piece of literature ''in recorded history''. As of September 16, 2023, it sits at over 16 million words across 2,213 chapters. It's actually so long that ''it broke Fanfiction.net's word count''; meaning no one except the author knows what the actual word count is, as it can't display anything higher than 16,777,215 (the site uses 24-bit integers). For the curious: it's a self-insert fanfic wherein the protagonist joins with the Loud House to combat evil forces. Most of the text, however, is in script format and consists of one-liners and [[UsefulNotes/{{Plagiarism}} copy-pasted fan wiki entries]].
* As of May 2023, ''[[Fanfic/FutureShockCameron Future Shock - Cameron]]'' ([[https://archiveofourown.org/works/15287826 link]]), a ''Series/TerminatorTheSarahConnorChronicles'' fanfic, clocks in at 7,540,293 words spread out over 1,572 chapters. It is the longest fanfic hosted on Archive of Our Own.
* As of April 2023, ''Fanfic/AtTheEdgeOfLasglen'', a ''Franchise/TolkiensLegendarium'' fanfic, clocks in at 6,109,264 words spread out over 335 chapters and is the second longest fanfic hosted on Archive of Our Own. It helps that it's written by a couple of authors rather than just one.
* ''Fanfic/EverythingChanges'' ([[https://archiveofourown.org/works/1825198 link]][[note]]Requires an account to access[[/note]]), a Formula 1 RealPersonFic, is the third longest work on Archive of our Own, at 5,600,926 words over 505 chapters (as of January 1st, 2023), and it's still being updated.
* ''Fanfic/OffToTheRaces'' is the fourth longest fanfic hosted on Archive of Our Own, with 5,260,601 words across 1015 chapters as of January 1, 2023.
* As of April 2023, ''[[Fanfic/TheShiningEyesFearOfAHerobrinePart2 The Shining Eyes (Fear of a Herobrine part 2)]]'' ([[https://archiveofourown.org/works/17046851 link]]) is the fifth longest fanfic hosted on Archive of Our Own, clocking in at 4,515,134 words spread out over 782 chapters.

* The same creator of ''Fanfic/SoulChess'' brought us ''Fanfic/FairyWithoutWings''. While ''Fanfic/SoulChess'' did not break 2,000,000 words (see below) this one did and is ''still ongoing''.
* ''Fanfic/TheseBlackEyes'' ([[http://www.fanfiction.net/s/4778437/1/These_Black_Eyes_Ag_Re_Post_Ing_r link]]) in the ''WesternAnimation/TeenTitans2003'' section is over 2.5 million words, 272 chapters. Depending on how much of Arc III has been lost, it may have been over 3 million in its full version.
* ''Fanfic/WithThisRing'' is a ''WesternAnimation/YoungJustice'' self-insert fanfiction which deals with a character with significant knowledge of the DC universe who gains an Orange Power Ring. As of Aug 2021, it is over 3.6 million words long, and has been updating daily for the past several years.

* ''Fanfic/{{The Chase|MyLittlePony}}'' clocks in at over 2,000,000 words ''(contained within over 800 chapters)'' as of January 2016.

* ''Fanfic/SenranPersonaNinjasOfHearts'', which reaches 2,298,334 words, is, so far, the longest ''Franchise/{{Persona}}'' and ''VideoGame/SenranKagura'' crossover as of March 2023 (and perhaps the longest ''Senran Kagura'' story), and is still ongoing.
* ''Fanfic/DiariesOfAMadman'', which as of November 2022, is over 3.2 million words, holding the title of the longest fic on [=FIMFiction=], with no sign of slowing down anytime soon.

* The ''Fanfic/{{Austraeoh}}'' series. While each story has 195 chapters except for the last two stories which are longer, they are very short, usually no more than one or two thousand words. Still, as of March 2021, the entire nonalogy clocks in at above 3,900,000 words so far, and the author is planning on several more parts.

* ''Fanfic/AHollowInEquestria'' at last count is 1,221,287 words long, and is showing no signs of stopping. The author has indicated an intent to continue writing the story until it eclipses ''Fanfic/DiariesOfAMadman'' in length.
* ''Fanfic/CatRa'': Monokub just can't help himself from making each episode several quite sizable chapters. The story has 1,456,237 words over 130 chapters

* ''Fanfic/MushroomWars'' reached the 1 million word milestone on April 6, 2022 at it's 121st chapter. It is the longest standalone ''Franchise/SuperMarioBros'' fanfic on Fanfiction.net, clocking in at 1,157,308 words as of March 2023.

* ''Fanfic/ThisBites'' is the longest ''Franchise/OnePiece'' fanfic out there; wordcounts vary between the FFN and AO3 versions, but both are comfortably over 1.9 million words as of the end of Part 1.

* ''Fanfic/{{Traveler}}'' is a ''Pokémon'' AlternateUniverseFic and PatchworkFic where Ash receives a male Nidoran instead of a Pikachu. As of March 2023, it has 66 chapters and is over 1.7 million words long.

* ''Fanfic/AThingOfVikings'' is a ''Franchise/HowToTrainYourDragon'' AlternateHistory fanfiction, and with 1,703,162 words as of the last chapter of Book IV, chapter 154, published on April 30, 20203, the fic is officially longer than the combined length of the seven main Harry Potter books (1,084,170); while the author has broken up the story arcs into "books", they are currently aggregated as single fanfiction and thus qualify under this category.

* ''Fanfic/DesperatelySeekingRanma'' is a ''Manga/RanmaOneHalf'' fanfic that clocks in at 1,426,632 words long with 98 chapters as of June 18, 2021.

* As of March 2023, ''Fanfic/TheWeaverOption'' clocks in at over 1.6 million words, and it's regularly updated.

* The ''Literature/HarryPotter'' fanfic ''Fanfic/NewBloodArtemisgirl'' has been reliably updated with a new chapter every Tuesday and Friday since it was first published in August 2018. While each chapter is a single scene, about as short as a chapter can get and still meaningfully ''be'' a chapter, this still adds up to over 1.1 million words as of April 2023.

* ''Fanfic/CertainDarkThings'': At over 800,000 words the story and is still ongoing as of July 2023.

* ''Fanfic/ExercisesInGratitudeTheBarclayStreetFlood'' is the longest ''Franchise/{{Splatoon}}'' fanfic on Website/ArchiveOfOurOwn, at well over 600 thousand words and a chapter count in the triple digits.

* As of December 2017 ''[[https://www.fanfiction.net/s/9822580/1/The-Girl-Who-Was-Behind-The-Curtain The-Girl-Who-Was-Behind-The-Curtain]]'' has over 741,000 words and 127 chapters.

* ''[[https://www.fanfiction.net/s/4506329/1/The-Shy-Newcomer The Shy Newcomer]]'' is a ''Harvest Moon: More Friends of Mineral Town'' fic that began in 2008. As of December 2022, it is 630k+ words long.

* The ''Franchise/MyHeroAcademia'' fanfic ''Fanfic/AHeroRises'' sits at 504,702 words in length as of January 2022.

* As of February 2023, the ''WesternAnimation/SouthPark'' [[MisterSeahorse Omegaverse]] fanfic ''[[https://archiveofourown.org/works/23221027 Rise]]'' clocks in at 630,003 words spread out over 53 chapters. This makes it one of the longest, if not ''the'' longest, ''WesternAnimation/SouthPark'' fanfics hosted on Archive of our Own.

* ''Fanfic/FalloutGirls'', a crossover between ''WesternAnimation/MyLittlePonyEquestriaGirls'' and ''VideoGame/Fallout3'', ongoing at over 669,000 words as of April 2023.

* ''Fanfic/HarryPotterAndTheMotherWhoLived'' is over 778,000 words long and as of May 2023 still ongoing.

* As of May 2023, the ''WesternAnimation/SouthPark'' fanfic ''Fanfic/MostlyYouJustMakeMeMad'' ([[https://archiveofourown.org/works/39037140 link]]) clocks in 503,473 words spread out over 125 chapters.

* At over 606k words, ''Fanfic/SpellboundLilafly'' is the second-longest ''WesternAnimation/MiraculousLadybug'' fanfic on Website/ArchiveOfOurOwn as of May 2023.

* ''Fanfic/ReadTheFinePrintEvangelion'', found [[https://archiveofourown.org/works/31141643/chapters/76951013 here]]. 276,083 words spread over forty-four chapters as of January, 2022.

* As of June 30, 2023, ''[[Fanfic/ReAssessments Re: Assessments]]'' ([[https://archiveofourown.org/works/34883659 link]]) is one of the longest ''VideoGame/{{Psychonauts}}'' fanfics hosted on Archive of our Own at 287,737 words spread out over 45 chapters.

* ''Fanfic/TheStoryOfTwilightGlow'' is over 352,000 words long and as of March 2023 still ongoing.

* ''[[https://www.fanfiction.net/s/13225250/1/Three-Strikes Three Strikes]]'', a ''WesternAnimation/{{Zootopia}}'' fanfic, is over 330,000 words long and as of April 2023 still ongoing.
* ''[[https://archiveofourown.org/works/24381499/chapters/58807216 The Hunter From America]]'', a ''Manga/DemonSlayerKimetsuNoYaiba'' fanfic, is over 381,000 words as of April 2023.

* As of September 2023, the ongoing ''VideoGame/MegaManZero'' and ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic ''Fanfic/ManehattansLoneGuardian'' totals 260,000 words over 56 chapters, and is the longest ''Franchise/MegaMan'' crossover on Website/FimfictionDotNet.

* As of March 21st, 2023, ''Fanfic/TommyPicklesTheTerribleTwos'' clocks in at 192,222 words spread out over 148 chapters.
* ''Fanfic/CorAutemAurora'', a ''Franchise/KingdomHearts''/''VideoGame/FinalFantasyXV'' FixFic, is at over 140,000 words as of December 2021.

* ''Fanfic/TheBridge'', a crossover between ''Franchise/{{Godzilla}}'' and ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', is over 1.1 million words as of October 2022. Furthermore there are also a few sidestories and spinoffs to it.

** ''Fanfic/TheApprenticeTheStudentAndTheCharlatan'' clocks in at over 333,000. It's still expanding due to the author's rewrites, as shorter chapters get more to them to flesh them out more. Its original complete version finished at 242,811. Even as far as single chapters goes, Chapter 17 ("Nightfall") is ''over 25,000'' words long, and the rewrite of Chapter 12 got to 28,000 before it was split into two parts.
** Its sequel, ''Even In Other Worlds'', is sitting at just over 200,000 words, however just under 40,000 words of it are AprilFoolsDay chapter updates (including one update that is all 22k+ words of ''Fanfic/MyImmortal'').

* ''Fanfic/{{Death}}'', a ''Manga/MyHeroAcademia'' fanfiction, has 4,479,292 words across 259 chapters. This makes it the third longest fanfiction on Website/FanFictionDotNet. The story grew to over 1,000,000 words within its first four months. Many of the chapters published in 2020-2021 exceeded 40,000 words each, with Chapter 233 being a whopping 152,877 words.

* The ''Fanfic/{{Quiververse}}'', with twenty completed stories, totals 553,633 words. And it's due to grow, with six more stories in the first season alone and a second season of as-yet unannounced size to come in the future, as well as assorted bonus material.

* The ''Anime/CodeGeass'' and ''Franchise/{{Transformers}}'' crossover series ''Fanfic/CodePrime''. The first volume, ''R1: Rebellion'', clocks in at 572,197 words, while the second volume, ''R2: Revolution'', stands at 569,677. This makes for a total of 1,141,874 words.

* The ''Anime/CodeGeass'' and ''Franchise/{{Transformers}}'' crossover ''Fanfic/CodePrime''. The first volume, ''R1: Rebellion'', clocks in at 572,197 words, while the ongoing second volume, ''R2: Revolution'', currently stands at 257,619.

* ''Fanfic/TheLoudHouseRevamped'', a ''WesternAnimation/TheLoudHouse'' MassiveMultiplayerCrossover fanfic, dethroned ''Fanfic/AmbienceAFleetSymphony'' to become not just Website/FanFictionDotNet's longest ongoing fanfiction, but the site's longest fanfic ever and the longest piece of literature ''in recorded history''. As of September 16, 2023, it sits at over 16 million words across 2,213 chapters. It's actually so long that ''it broke Fanfiction.net's word count''; meaning no one except the author knows what the actual word count is, as it can't display anything higher than 16,777,215 (the site uses 24-bit integers). For the curious: it's a self-insert fanfic wherein the protagonist joins with the Loud House to combat evil forces. Most of the text, however, is in script format and consists of one-liners and [[{{Plagiarism}} copy-pasted fan wiki entries]].

* ''Fanfic/TheLoudHouseRevamped'', a ''WesternAnimation/TheLoudHouse'' MassiveMultiplayerCrossover fanfic, dethroned ''Fanfic/AmbienceAFleetSymphony'' to become not just Website/FanFictionDotNet's longest ongoing fanfiction, but the site's longest fanfic ever and the longest piece of literature ''in recorded history''. As of September 16, 2023, it sits at over 16 million words across 2,213 chapters. It's actually so long that ''it broke Fanfiction.net's word count''; meaning no one except the author knows what the actual word count is, as it can't display anything higher than 16,777,215 (the site uses 24-bit integers). For the curious: it's a self-insert fanfic wherein the protagonist joins with the Loud House to combat evil forces. Most of the text, however, is in script format and consists of one-liners and copy-pasted fan wiki entries.

* As of May 2023, the ''Fanfic/StevenUniverseBornEarlierAU'' series ([[https://archiveofourown.org/series/2348236 link]]) clocks in at 553,424 words spread out over 91 works.

* ''[[https://archiveofourown.org/series/495916 The Components of Construction]]'' is a ''Franchise/MarvelCinematicUniverse'' AU fic that follows the adventures of a GenderFlipped version of Tony Stark by the name of Natasha Antonia "Toni" Stark. As of March 2020, the ''nineteen''-part series consists of the main installment, ''The Limitations of Wax'' (a 222k word Doorstopper on its own), a PerspectiveFlip short story, and seventeen AU stories of a fanfic that is already itself an AU, totalling nearly 522k words.

* As of May 2023, ''[[Fanfic/FutureShockCameron Future Shock - Cameron]]'' ([[https://archiveofourown.org/works/15287826 link]]), a ''Series/TerminatorTheSarahConnorChronicles'' fanfic, clocks in at 6,937,241 words spread out over 1,530 chapters. It is the longest fanfic hosted on Archive of Our Own.

* As of August 2023, the ongoing ''VideoGame/MegaManZero'' and ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic ''Fanfic/ManehattansLoneGuardian'' totals 239,000 words over 52 chapters, and is the longest ''Franchise/MegaMan'' crossover on Website/FimfictionDotNet.

* Another example of long ''Literature/HarryPotter'' fanfic is ''Hogwarts Exposed'', a fanfic coming in at over 700,000 words. It would be much shorter if not for the rampant [[DepartmentOfRedundancyDepartment redundancy]] and {{filler}}, of course.

* The ''Series/{{Firefly}}'' fanfic ''Fanfic/{{Forward}}'' is 508,921 words in length. ''Fanfic/TiberiumWars'', by the same author, looks like it's going to run a risk of hitting this as well, as it is only seventeen chapters long at this point but is clocking in at over 150,000 words, and canonically, it hasn't even finished the first of the actual game's ''five'' acts.
* ''[[http://www.mediaminer.org/fanfic/view_st.php?id=49664&submit=View Par Tout Autre Nom,]]'' a ''crossover'' between ''Manga/InuYasha'' and ''Manga/YuYuHakusho'' is 500,000+ words and seems nowhere near done.
* ''[[https://www.fanfiction.net/s/7422125/1/Nightfall Nightfall]],'' a ''Naruto'' fanfic about Naruto gaining the Rinnegan is over 800,000 words, 157 chapters, and still going strong.

* The ''Franchise/KungFuPanda'' fanfic ''Fanfic/ADifferentLesson''. As originally posted, over 1100 pages; a smaller font sized version runs around 550 pages. 45 chapters, 632,000 words. And amazingly, very little of it is filler; there's just that much going on.

* ''[[Fanfic/UltimateSleepwalker Ultimate Sleepwalker: The New Dreams]]'' ended in December 2016 at 115 chapters and 663,326 words in total. ''[[Fanfic/UltimateSpiderWoman Ultimate Spider-Woman: Change With The Light]]'', a companion series set in the same universe, is currently at 530,296 words and 89 chapters, and is ongoing.

* The ''Anime/CodeGeass'' fanfic ''Fanfic/DauntlessAlloraGale''. It started in July 2010; by January 2012, it was at over 539,000 words in 77 chapters, and usually updated at an average of once every 8-10 days. The author believed that she ''might'' finish sometime in 2012. She didn't, and it's still ongoing. As of November 2021 it is 103 chapters long and over 712,000 words.

* ''[[http://www.fanfiction.net/s/7599234/1/Bad-Boys-JEDI-Style Bad Boys, JEDI Style,]]'' is complete as of May 2013, breaking 908,000 words. It is the longest English-language ''Franchise/StarWars'' fic on FF.net.
* ''[[http://www.fanfiction.net/s/8169196/1/Persona-Duality Persona Duality]]'' by [[https://www.fanfiction.net/u/774317/Sraosha Sraosha]], a ''Franchise/{{Persona}}'' series fanfic. At 105 chapters and over 900,000 words, the story is still not finished. Granted, the sheer length may be due to writing a fully original Persona-esque story and not basing it on any of the canon games.

* ''The WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic ''Fanfic/TheEndOfPonies'' is already longer than the entire ''Literature/TheLordOfTheRings'' trilogy. And it's not even finished yet.

* ''Fanfic/TheLoudHouseRevamped'', a ''WesternAnimation/TheLoudHouse'' MassiveMultiplayerCrossover fanfic, dethroned ''Fanfic/AmbienceAFleetSymphony'' to become not just Website/FanFictionDotNet's longest ongoing fanfiction, but the site's longest fanfic ever and the longest piece of literature ''in recorded history''. As of July 9, 2023, it sits at over 16 million words across 2,146 chapters. It's actually so long that ''it broke Fanfiction.net's word count''; meaning no one except the author knows what the actual word count is, as it can't display anything higher than 16,777,215 (the site uses 24-bit integers). For the curious: it's a self-insert fanfic wherein the protagonist joins with the Loud House to combat evil forces. Most of the text, however, is in script format and consists of one-liners and copy-pasted fan wiki entries.

* ''[[https://archiveofourown.org/works/32853277/chapters/81524905 once upon a damn-you-all]]'' is a ForWantOfANail ''WebVideo/CriticalRole'' fic that has Cree preventing Molly's death on the Glory Run Road and changing the course of Campaign Two. At 615,134 words, it also has the distinction of being the longest ''WebVideo/CriticalRole'' fic hosted on Archive of Our Own as of December 2022.

* The ''VideoGame/TeamFortress2'' fanfic ''[[https://archiveofourown.org/works/2531561 Sinner's Fire]]'' is currently 358,159 words long.

* ''Fanfic/AllAmericanGirl'''s "Book One" is over 430,000 words long. There's also the accompanying collection of side stories, ''Be Human'', which has almost 300,000 words. (This is as of November 2017.)

* As of July 2023, ''Fanfic/EyesOnMe'' adds up to a total of 301,343 words spread out over nineteen entries.

* ''Fanfic/{{Death}}'', a ''Manga/MyHeroAcademia'' fanfiction, has 4,479,292 words across 259 chapters as of January 7, 2023. This makes it the third longest fanfiction and the second longest ongoing story on Website/FanFictionDotNet. The story grew to over 1,000,000 words within its first four months. Many of the chapters published in 2020-2021 exceeded 40,000 words each, with Chapter 233 being a whopping 152,877 words.

* As of July 2023, ''Fanfic/EyesOnMe'' adds up to a total of 296,951 words spread out over nineteen entries.