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Cloudy Skies and Skeleton Guys by JustADorkyWriter
Fandoms: Undertale (Video Game), Underswap (Fandom), underfell (fandom), Fellswap (Fandom), Horrortale (Fandom)
25 Jun 2025
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Summary
Humans have kept to themselves for centuries trapped behind a wall that the "Outsiders" had built to keep them in. Though the "Outsiders" had this system, a system every human was put into at birth. Through this system the "Outsiders" were able to pick and choose humans like candy to be transported to them. No one knew what happened once a human was picked, other than the fact that they're never seen again.
You were used to a simple farm lifestyle on the outskirts of the human city, A normal girl who didn't have to worry about much. Well, that was until one day. You walked inside only to see the collection officers talkin to your mom, and by the look she gave you, they weren't here for her.
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Horror’s coat is falling apart, just like everything else he drags behind him.
Error notices. And in the quiet courtyard of Nightmare’s castle, he offers what Horror rarely gets, solid stitches, meant to last.
It’s not about making it look good. It’s about making it hold.
Series
- Part 4 of Crafted by Error
- Language:
- English
- Words:
- 759
- Chapters:
- 1/1
- Kudos:
- 4
- Hits:
- 6
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Summary
Dust doesn’t ask for help. He keeps to the edges of the castle, silent, fraying at the seams like the scarf he never quite lets go of.
Error notices. He doesn’t ask, either. Just stitches what he can, because sometimes holding something together is the only way to show you care.
Series
- Part 3 of Crafted by Error
- Language:
- English
- Words:
- 546
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 10
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Summary
She fell chasing her sister. Now, disguised as a monster, she’s gambling everything to get Frisk out alive—including trusting a lazy skeleton who sees through her lies. With Asgore’s knights closing in and the king needing one last human soul, survival demands shortcuts through glowing caves and MTT Resort glitter. But Sans’s bone-dry wit and hidden power blur the line between using him… and losing her heart underground.
Neutral Route | Slowburn Sans/Reader | Found Family | Protective Siblings | 2016 Undertale fic vibes
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The barrier just got destroyed, the future has hope, but Frisk can't stop thinking about the human souls, they feel like they need to help them, but they're not sure how
- Language:
- English
- Words:
- 820
- Chapters:
- 1/?
- Hits:
- 4
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Summary
What was supposed to be just another fight between Error and Ink goes haywire when two entities of unknown origin appear from Error's destruction. Beings who shake the foundation of the multiverse with their Principles. Any attempt at finding out the nature of these entities is soon put on hold as the Multiverse is attacked by an unknown threat, forcing the destroyer and protector to join hands with the two in order to kill the invader.
- Language:
- English
- Words:
- 6,987
- Chapters:
- 1/1
- Hits:
- 4
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The Dual Lights in the Underground - Undertale Red and Yellow Fan Fic by therealone12131
Fandoms: Undertale (Video Game), Undertale: Yellow, Undertale: Red and Yellow
25 Jun 2025
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Summary
It's been several years since the last human fell into the underground, and today, in the year 20XX, the eighth human falls in, just like the rest. Two unfamiliar, ghostly friends will await this human, but...
The human isn't Frisk.
A whole different adventure awaits this new human.
Inspired by the Undertale Yellow fan game by Master Sword and the Undertale Red and Yellow mod by Shinix.
Absolutely love their work, I hope my writing can match even a 10th of theirs. -
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Summary
Reality is unraveling. Time no longer follows rules—it bends, loops, and rewinds, pulling souls into paths they were never meant to walk.
As memories clash and timelines bleed into each other, a new force emerges—one that threatens to erase not just the future, but every version of the past.
How do you fight what was never meant to exist?
And what will you become when time runs out? -
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You had been playing an immersive VR game: The World Of Aspenheim. However, after 10 years, the servers were about to close and to give your last farewells, you decided to stay online until the servers kicked you out. In the end, you fell asleep on the golden throne...
Only to wake up still logged into the game!? And why couldn't you log out!? And who was the one knocking on the door!?
"YOUR HIGHNESS? ARE YOU AWAKE?"
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The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Doctor Who, Deltarune (Video Game)
25 Jun 2025
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Summary
He thought that the radiation would kill him. He thought that his time as the Doctor would come to sad and brutal end. He was wrong. And that was so much worse.
In his efforts to find himself, and without his companions, he accidentally stumbles onto a monstrous civilization miles below the Earth. With his newfound DETERMINATION and some new allies, he'll come to realize what it truly means to be a friend, and learn how to live his last lives with his head held high.
And make sure that, just this once, everybody lives.
OR
Undertale but the Tenth Doctor replaces Frisk. Fluff, angst, AUs, and timeline shenanigans ensue.
*No knowledge of Undertale or Doctor Who is required, though it is helpful if you've experienced at least one of them.
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After Subject 2 asks about his digital records, Dr. W.D. Gaster comes up with a new way to keep his experiments entertained.
OR.
The story of Handplates, as told through 2-P's little notebook.
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FRISK GETS THE FLU SND NOW EVERYONE IS WORRIED
(LET ME KNOW UR THOUGHTS AND IF I SHOULD CONTINUE TO UPDATE THIS)
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Bathing was supposed to be a simple, easy thing. One that could provide a little relief.
But Sans wasn't looking for relief. He was looking for an end.- Language:
- English
- Words:
- 3,710
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 14
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In which I make sense of what is left of a dying world by sansytama
Fandoms: Undertale (Video Game)
25 Jun 2025
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Summary
a collection of short writings i made. each chapter is its own thing and they have individual theme.
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Dust and Killer wake up to a surprise, and apparently Nightmare and Cross have left the building?
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Summary
After visiting an abandoned AU, Nightmare was left shrunken to a child, however, he didn't fully returned to his form before the Apple Incident, instead an amalgamation of it happens. His pain called the Star Sanses into the scene and upon seeing him, they only assumed he's a survivor from an attempt to erase his universe. Now, Nightmare or rather Moonshine, has to deal with being in enemy territory and being treated as a brat.
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You’re a villager in Dreamtale that decides to take the place of Nightmare Sans and eat the apples instead to protect him. It backfires and causes both guardians to turn to stone while you end up killing off the village. Now you feel lonely and can’t help wanting someone to stay with you.
Only problem is that you’re a woman with baby fever and the Sans AUs just so happen to act and look a lot like children…
(Dream and Nightmare are like 5,2 while the others are smaller in this story, it’s important)
(Maybe bi-weekly updates?)
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After Sans' machine malfunctions, The Fun Gang and Noelle Holiday find themselves pulled into the events of the Glitchtale AU, where they prove to be invaluable allies against the evils that threaten the world and human and monsterkind alike.
However, by merely being present in the Glitchtale Universe, Noelle and the Fun Gang have unwittingly raised the stakes by considerable amount, as breaches in the fabric of the space-time continum begin to appear, allowing people and things from their dimension and a myriad of others into the universe the quartet now find themselves in, including new allies that join the fight on the heroes' side, as well as newer, deadlier threats from all across time and space that, thanks to the breaches, now threaten the entire multiverse.
Can our heroes survive the coming storm? Or is all of time and space doomed to fall to darkness?
Let us begin the experiment and find out together, shall we?
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Summary
You and your fuck buddy's relationship
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Would It Still Be A Cemetery If The Skeletons Are Alive? by Silly_little_me
Fandoms: Undertale (Video Game)
25 Jun 2025
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Summary
The machine's exploded. Again.
A new pair of skeletons have been thrown into this au. Again.
The new brothers seem to have secrets, things about their au they're hesitant to tell the rest of the household. Again.Good thing that this household has quite the track record for helping those with Tragic Backstories(tm) to heal. Though, they've never had to deal with someone that doesn't believe what they've been through to be that traumatic. Is it harder to help someone heal when their current method of 'dealing with it' is to just ignore what's going on and roll with whatever is thrown at them?
Probably.