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Shadows Cut From the Soul by CodePlanTB
Fandoms: Undertale (Video Game), Deltarune (Video Game)
30 Oct 2025
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Summary
A few days after the end of the pacifist route, Frisk finds themself facing an unknown threat lurking in the dark. Frisk needs to work with their friends and stop the threat before the whole underground becomes darker than dark.
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Sunny After Not Surviving by grudreader
Fandoms: Undertale (Video Game), OMORI (Video Game)
30 Oct 2025
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Summary
After telling the truth, Sunny is left abandoned by everyone including his only remaining family. Truly alone, he deems his life over before it had even begun and climbs a nearby mountain in hopes to never return. Fate has other plans, however.
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The RESET button is pressed. No surprise. Another wound inside Sans tells him this wheel will never let go. The world around him melts, everyone forgets themselves, forgets what happened between them. The ketchup flies back into the fridge and dissolves with it into nothingness.
He accepts this with restraint, ready to face the void, to be a toy in someone else's hands.
But then he is torn from the shroud of nothingness, a golden light penetrates Sans, and he opens his eyes in a different... place. -
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Summary
In which neither Sans nor Ember know how to ask for a hug.
Series
- Language:
- English
- Words:
- 7
- Chapters:
- 2/2
- Hits:
- 4
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Summary
Cross x Epic x Killer.
Voilà. Demandait pas, je cherchait un truc à écrire et je suis tombé sur une image qui était ce couple - trouple. Donc, j'étais là "Quelle bonne idée ! let's go !"Nous y voilà. Bonne lecture.
-- Cross et Epic, meilleurs amis. Un soir, Cross et Epic passait du bon temps et quand Cross se réveille, il se retrouve dans un lycée qui sera scène parfaite pour un shōjo.
Bonne chance à lui.- Language:
- Français
- Words:
- 1,304
- Chapters:
- 2/?
- Hits:
- 1
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A God From Elsewhere by SomniumOfLight
Fandoms: Undertale (Video Game), Hollow Knight (Video Games)
30 Oct 2025
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Summary
There is an inherent flaw to tying fate to sapient beings, and when the scale of such a tie is multiversal, the consequences can quickly become dire. From the moment of his shattering at Fate’s hands, the Destroyer has been one half of the Balance meant to keep these consequences at bay – it is a vicious cycle, Creation’s ignorance begetting pain, suffering, and insanity, and with their mutual creator’s spiteful determination to keep the status quo, it’s only a matter of time before he breaks under the strain.
But while this god is resigned to his fate, one of the Powers that Be, one that watches over him, decides to take matters into her own hands. She will free him from Fate’s web, no matter the cost. Even if it means working under the nose of her more spiteful counterpart for centuries upon centuries. Even if it means striking a deal and giving her chosen to another higher being, something incomprehensible and terrifying that defies her understanding of the cosmos, with unknown plans in store for him.
It is fortunate, then, that this higher being understands the pain that comes of being chained to a Purpose, and refuses to inflict that same pain unto another so much like itself.
- Language:
- English
- Words:
- 9,175
- Chapters:
- 1/?
- Hits:
- 10
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OVERWRITE Aftermath - Chapter 1: The First Domino by OVERWRITEDimp
Fandoms: Sonic the Hedgehog - All Media Types, Undertale (Video Game), Dragon Ball, Five Nights at Freddy's
30 Oct 2025
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Summary
We all like crossovers, right? They couldn't possibly get out of control...right?
After a chain of events lead to Sonic and a few others getting assimilated into the world of XTale, many changes occur as the rules of the Omniverse change to keep itself stable, which sets off a chain reaction that will change reality forever. -
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So, I heard you like skeletons...
Reader insert prompt fills for @skeletonh0e's sans-centric Kinktober challenge on tumblr
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The Multiverse was frozen.
Deep, black ink dripped from the code of AUs.
Nothing new was being created, and nothing could be destroyed. Everything felt definitively fuzzier at the edges as the balance of energies refused to tip for anything...The entirety of the Multiverse was decaying, slowly but surely, and it was all because a certain Creator has gone missing...
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Summary
Spanning over ten years, this huge fic will be split into ten parts for each year.
This fic is Alphynecentric, with Alphys at the helm. This is a fic that came outta nowhere (as they all do) and hasn't quit since I started. I have no idea where this will go. All I know is that it is very emotional, romantic, and rather silly.
Just enjoy. This may be my last fic for this fandom.
Series
- Part 1 of Ten Years
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Summary
Dust was on his couch after yet another long day at work when he saw a blinding flash of light in his garden. Getting up he slowly approached the bay window to take a look outside... and saw four strange skeletons dressed as a viking, a noble, a knight and a Roman yelling in foreign languages at each other.
He didn't know why he opened the window nor why he invited them inside, but he did, and by doing so he sealed the beginning of a very weird adventure with his four new roommates...
Dust - Modern Time, speaks English
Horror - Scandinavian Viking, speaks Old Norse
Killer - Ancient Roman, speaks Latin
Cross - Medieval Knight, speaks Old French
Nightmare - 17th cent French Noble, speaks Classical French(Cross-posting on Tumblr ! @/mikimakiboo
Basically a story about the boys coming from different time periods and time traveling together
Short chapters but it allows me not to burn-out too fast :')
Also, time being what it is, I should specify that I did NOT use AI for anything in this story, the languages all come from long researches to translate word by word in some cases, I did it all myself without the use of AI)
Series
- Part 1 of Time Travelers AU
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Summary
Sans and papyrus are missioned to ho undercover, to try and get close to and figure out things about a spy called y/n l/n
They do an amazing job- Language:
- English
- Words:
- 594
- Chapters:
- 1/?
- Kudos:
- 3
- Hits:
- 18
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Summary
Monsters have come to the surface, and with that a lot of probelms have been caused, so maybe a marriage between two people from the two races might help?
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After the Visitor left behind that angelic abomination who wipe out 90% of humanity, Sam know's that they can't stay in the city. Searching in the former room of Sybil he found the former research of the astronomers and discover a place that was not affected by the visitor, Mt Ebott. He doesn't know why but it seems there is some kind of barrier that keep the place safe during the end of the world.
With only that as his last hope to survive, Sam and his friends go to Mt Ebott but the exalted four find them, taking them one by one until it was only Sam and the childrens.
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Timeless Justice by TheDoctorWD
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
30 Oct 2025
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Summary
After countless resets and endless repetition.. something has changed. The timeline has began shifting, changing its path for the first time in a long time. A new path Flowey hasn't seen before.
Well, it might take Clover longer to reach Asgore but Flowey has all the time in the world after all. And seeing something new finally happen has piqued his curiosity. Drawn in by the unfamiliar, Flowey watches with morbid fascination as Clover is not able to give up his soul this time. Encounters shift, monsters react differently, and the world itself begins to remember things it was never meant to.
Events shuffle. Characters act out of turn. Rooms appear where there were none. And for the first time in countless resets, Flowey doesn't know what comes next. Clover's fate is uncertain. Though Flowey knows he will get those human souls, no matter what.
Series
- Part 1 of Fractureverse - UT/UTY/DR
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Summary
Nine strangers. One fall. A power none of them understand.
When eight teens and a young girl follow a mysterious light into Mount Ebott, they expect adventure. What they find is a crumbling underground world of monsters, magic, and ancient conflict. But that’s not the strangest part.
Each of them awakens with a glowing SOUL—a trait linked to their heart, their will, their essence. But these SOULs don’t stay still. They shift. Swap. Sync. And with every battle, their bond grows stronger… or more dangerous.
As they struggle to understand this new power, they’ll face old threats, cryptic warnings from a familiar talking flower, and a world that remembers the war they never fought.
They just wanted answers. Now, they’re part of something much bigger—and something down here is watching.
Welcome to the Underground. Stay determined… or get creative.
- Language:
- English
- Words:
- 13,259
- Chapters:
- 14/27
- Hits:
- 49
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Summary
Life is trough
Even if you work hard nothing will pay off
Cross knows this from day one
Even in his white prison, he knows it was ment to come to this.
This is what the story would end to, a tragedy.
That's the reason why he's so shocked that there was more to his story. A new chapter.
But how could he make it end.
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Or a very suicidal Cross joins the bad sanses with a goal. To fix everything by killing himself. -
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IT'S THAT TIME OF THE YEAR!
Kinktober time~!So yeh this is basically short drabbles of smut. Some will be longer, some will be shorter but I'm gonna try my best to make them juicy~
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Gran, Sweet Gran, Where Are Your Wolves? by freshiewrites
Fandoms: Undertale (Video Game)
30 Oct 2025
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Summary
Papyrus and Sans have escaped their kill or be killed lives Underground with the rest of Monsterkind, and have found an apartment building to live in. It's nothing special, and very run down, but there are a few treasures to be found inside.
Gran will take care of these boys if it's the last thing they do. After all, who doesn't need a little help sometimes?
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Undertale Kinktober 2025 hypnosis edition by Chris_ghosty77
Fandoms: Undertale (Video Game)
30 Oct 2025
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Summary
New kinktober! One chapter a day for the entire month!!! With a list I made myself, very excited to show everything I've written.
Just like the other ones every chapter contains some form of hypnosis/mind control/brainwashing. I'll do my best to tag but i can't tag absolutely everything so look at the warnings at each chapter or in the table of contents.Series
- Part 14 of Undertail hypnosis series