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A FINE LINE BETWEEN ORANGE AND YELLOW by Fantasy_Artist
Fandoms: Undertale (Video Game), Original Work
09 Oct 2025
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Summary
While Aneira didn't necessarily believe monsters existed, she did find the fact that everyone and their dog still did might mean something. Her childhood town of Beddgelert believed in monsters trapped under the mountains near their home that would need a seventh soul now to break out and destroy lands.
Aneira also knew that she needed to figure out what happened to the kid she was friends with who went missing. Which was how she found herself having fallen (probably) hundreds of meters below a mountain inside a cave system. Was she stupid for leaving without telling people where she was going, definitely, but, to be fair, she didn't expect to fall; she couldn't even see the hole.
Injured and wanting to go home, Aneira braves through the underground cave systems, finding MONSTERS both friendly and foes, learning about what happened to all the previous (children) HUMANS that fell.
tldr: Aneira falls instead of Frisk, is injured and is too stubborn not to use this chance to find out what happened to a friend (definitely dead by now, but she still wants to confirm), the Undertale cast feels like something is different, but not what. They also live in Wales here because why not?
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those celebrity magazines by dailyblooky (stellophiliac)
Fandoms: Undertale (Video Game)
11 Sep 2025
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- Language:
- English
- Words:
- 178
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 16
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The story of the human and monster war, now days just another bedtime story, but that is for the humans. Monsters live trapped underground, they have gone through famines, epidemics, lost of hopes and dreams, and all because the humans were scared of them. Hope came back when finally, a "human" fell down. But it just brought more misfortune.
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Papyrus always goes about his day with a grin on his face, never showing discouragement or hatred to anyone. He hides a heavy burden away from all of his dearest friends, because as long as they are happy, EVERYTHING will be just FINE.
...
But bones are fragile, and sometimes they crack.
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you and i got lost along the way by grayishaffinity, MinkyMomouuu
Fandoms: Deltarune (Video Game), Undertale (Video Game)
07 Jul 2025
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Summary
wyd if you fall in love with someone and then get sent into an alternate universe where he doesn't seem to exist but there's Remnants of him everywhere you Look
that's like halfway in though. i don't have a summary for the beginning. fucj around and find out
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Hooray! King Mettaton Episode! by datm, grayishaffinity, MinkyMomouuu, visibrans, WPuppetMar
Fandoms: Undertale (Video Game)
06 Jun 2025
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Summary
PRIMARILY WRITTEN BY MINKYMOMOUUU AND GRAYISHAFFINITY!!!!
9/28/25: WE'RE REMASTERING THE FIC! Adding sections and rewriting some chapters. Remastered chapters will be marked in their summaries. Hooray!
Series
- Part 1 of HKME
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krottytale 201x (ruins) by songthatmightplaywhenyoufightsans
Fandoms: リズム天国 | Rhythm Heaven (Video Games), Undertale (Video Game)
21 Apr 2025
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Summary
* Legends say that those who climb the mountain never return.
Joe gets sent to go to Mt. Ebott to train as 'punishment' for escaping the basement for the 4Xth time. However, instead of training, he ends up somewhere deep under.
- Language:
- English
- Words:
- 2,087
- Chapters:
- 1/?
- Comments:
- 2
- Hits:
- 14
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Cyberangel - BSD x UNDERTALE by orphan_account
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Undertale (Video Game)
03 Mar 2025
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Summary
Ranpo is done with the Decay of Angels, refuses to take the case that the government requested a meeting for, took a walk to clear his mind, and ended up at Mt Ebott. It is illegal to climb it, but who cares anyway??? Whilst Ranpo's looking down the strange gigantic hole, Dazai gets teleported as a malfunction in Nikolai's ability.. on top of Ranpo. What could possibly go wrong?
(ON BREAK!!! WILL BE BACK IN UNDER A YEAR!!!)
Tags update as the story goes
Characters are not mine! They belong to their respective fandoms.
oops i forgot to update the location mb uhhh
Souheki current location - CORE
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Summary
As always, Frisk climbs Mt. Ebott and falls into the Underground. However, this time, like so many others, something is different...
Welcome to Shuffled Reality, an AU where I randomized all of the characters roles (except the npcs, but we don't talk about them). Expect to see some strange and perhaps silly things.
*Regretfully, on hiatus.*
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It’s just another normal run of Undertale right? Well yes but someone who is not supposed to interferes by giving flowey an anonymous tip that a human will fall tommorow.
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Like many universes, Frisk has fallen. But this is no accident, it’s an adventure. Frisk is joined virtually by their uncle, in an exploration to find monsterkind.
Luck be upon them, for they do not know what lies ahead.
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Napstablook is hosting a special spooky surprise party for their cousins! Little do they suspect, however, Blooky has some... tricks up their sleeve.
Series
- Language:
- English
- Words:
- 2,829
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 312
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pins and needles by PenGuinWritez
Fandoms: Undertale (Video Game), Deltarune (Video Game)
21 Aug 2024
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Summary
Mad Mew Mew accidentally stumbles upon a Dark World! And she meets a very interesting goopy shakespearean puzzle maker...
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Long ago, two races ruled over Earth: HUMAN WOMEN and BIG DICKED MONSTERS (also human men). One day, war broke
out between monsters and men over the women.
After a long battle, the human men were victorious.
They sealed the monsters underground with a magic spell. Many years later...
MT. Ebott
201X.
Legends say that those who climb the mountain never return.
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A teenage human girl named Frisk falls into the underground after getting wasted after graduation, only to find a world of monsters all with her favorite thing: massive, throbbing, pent up cocks. She must now slut and whore herself across the underground to make it back to the surface while also teaching monsters the power of CONSENT (instead of MERCY).Series
- Part 2 of Lewd Undertail
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Summary
* There is another one of these collections of the game "Undertale" with the reader in it.
* It fills you with determination.
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A Undertale x Reader Oneshot collection from 2016-2017, crossposted from my Wattpad.
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Chapter 7: The story below by BloppityBloop, Twosidedwritersblock for Us
Fandoms: Undertale (Video Game), Deltarune (Video Game)
26 Apr 2024
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Summary
So y'all remember that folder in chapter 2 with Asriel's sparkle dog OC/final boss of UNDERTALE? Yeah we looked way too far into that.
Kris, Susie, and Asriel are sent to Asriel's unreleased game, UNDERTALE! Why is it unreleased? Because giving people option to kill your neighbors in a videogame is kinda weird. We all do weird things when we're 13.
Join the fun gang/3 Heroes of the prophecy/The $!$! Squad/Lancer's fanclub (+1) as they traverse Asriel's old unpolished videogame!
(Disclaimer: UNDERTALE is not unpolished. Only Asriel's version of UNDERTALE is unpolished) -
Epic Character Elimination Rewrite by AnotherUnknownUser
Fandoms: Epic Character Elimination Reboot, Video Blogging RPF, Object and Concept Anthropomorphism, Vocaloid, The Simpsons, Little Witch Academia, Five Nights at Freddy's, Nintendo, Plants vs Zombies, Marvel, Percy Jackson and the Olympians & Related Fandoms - All Media Types, Historical RPF, Undertale (Video Game), Kung Fu Panda (Movies), Llamas with Hats (Web Series), ワンパンマン | One-Punch Man, Dragon Ball, Grounded Caillou, Invincible (Cartoon 2021), Untitled Goose Game (Video Game), Deltarune (Video Game)
01 Apr 2024
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21 reskins are painted on the originals and forced to change their context whilst competing in a similar show hosted by an unfamiliarly familiar host. This time, you have no power here.
There is no DISCORD SERVER: https://discord.gg/xPZwwCh95J
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Official Geuraverse Undertale ‘Ask’ Thing I Guess? by AolaDragonFang200
Fandoms: Undertale (Video Game)
13 Feb 2024
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Yet another ‘Ask the Undertale characters’ thing, but it’s my own personal takes on each of them so hopefully it’ll be different enough to still interest some people-
…I wonder how many friends you’ll all make, and how much lore you’ll uncover-Please comment! Positive feedback is lovely, constructive criticism is helpful, and flames are amusing!
Series
- Part 2 of Geuraverse Undertale
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You run away. You fall into a pit, and there are monsters at the bottom. They don't look like monsters should. They all have the same face. It makes you uncomfortabl
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- Part 52 of Two Steps To The Left, And a Long Fall