1 - 20 of 41,214 Works in Sans (Undertale)
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You died. Sans died. But in the void between life and death, you found each other, and a chance to live again.
Merged into one body with a dying child skeleton, you wake up in the middle of a brutal war between humans and monsters. With baby Papyrus to protect and your brother Gaster's experiments turning you into something more (and less) than human, survival means running, fighting, and holding onto whatever shreds of innocence you can preserve.Or: Isekai War AU where you get hit by Truck-kun, merge with Sans, become a child soldier, and eventually end up in a polyamorous found family with 14+ skeletons. Features: PTSD, creative use of green magic, so many puns, and the aggressive pursuit of a normal childhood for Papyrus.
no stripes or brother/brother are involved in romance.
Ask not for whom Truck-Kun honks, Truck-Kun honks for thee
This is entirely plotted out and outlined but will not have a set release schedule
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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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Killer fucked up, and oh boy, Nightmare is PISSED. Killer will have to deal with Nightmare's punishment and keep going forward despite losing all hope.
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Nightmare sends Killer to the Anti-Void, house of the crazy destroyer of universes, as a punishment, and Killer has to survive and, most importantly, get out of there as soon as possible... or not. -
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You've been in The Void for so long that you can't recall anything. Then you find a way out in the form of a skeleton that uses the damn thing as an express highway. Well, sort of. Only he can see you. Your memories are being weird too, since everything seems so familiar even though you can't recall anything.
Then the human falls, and everything goes downhill.OC-centric fic written from second person, it's not all angst but there's basically no comfort for everything that goes wrong (at least at the story's current point). Arc 2 is multiverse stuff
Arc 1: Rock Bottom, 1-11
Arc 2: Funhouse Mirrors, 12-? -
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Homeless and guarded, Susie reluctantly accepts help from Undyne, Hometown’s tough yet caring police officer. As they share a roof, both begin to uncover trust and hope in unexpected ways.
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Jesatt: A tale of love, christianity, and catboys. by FreakyPanPotatoMan
Fandoms: Miitopia (Video Game)
26 Oct 2025
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Jesus and Matt are really really gay. Drama ensues. Based off of a miitopia play through of my friend's. I did NOT write any of this, I just wanted to share it with the world (for some reason.)
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Noriko works for the Ebott police department in the newly established special bitty unit, her first assignment to go undercover to get into the bitty fighting rings now that the government has given the small monsters all the same rights as their full sized counterparts. What she didn't expect was for her first assignment to have a hiccup in the form of finding something unexpected in an ally on her way to make contact with her in into the rings.
Life in the rings was hell, being sold off to be a breeder was probably even worse. Though dusting in some filthy ally by the jaws of a mangy mutt was not the way he expected his great escape from hell to end.
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As Carol and the Knight's conspiracy slowly unfolds, their plans are intruded as unknown players find their way into the field..
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A sweet little series set in a world where monsters had been captured from the beginning instead of shoved underground.
Eventually, as the years and generations pass, both humans and monsters slowly forget the monsters were ever free.
We follow the story of an aging little zoo hoping to expand and take in a few monster pups. And the stories of several monsters who find themselves being transferred to the place.
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Falling into the Underground wasn’t on your to-do list. Falling for two skeletons definitely wasn’t either.
Blue is sunshine bottled in bone—sweet, loud, and determined to make you smile even if it kills him. Rus is quiet, steady, and the kind of person who remembers your favorite tea. Between the two of them, you’re constantly flustered, overfed, and very, very loved.
When both brothers realize they’ve fallen for you, chaos ensues—except it’s the polite, apologetic kind of chaos where no one wants to hurt anyone else. What starts as a tangle of awkward affection becomes something honest and warm: a relationship built on trust, laughter, and a whole lot of skeleton hugs.
“WE CAN SHARE THEM!” Blue insists, bright as ever.
Rus sighs. “That’s not how dating works, bro.”- Language:
- English
- Words:
- 1,178
- Chapters:
- 1/10
- Hits:
- 15
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Here we are again! Another series of Undertale one-shots following the Fictober prompts and featuring the skeleton brothers as love interests to either my nameless or named girlies.
Just like the past two years, if you'd like any of these to be turned into fics, then please let me know in the comments! If enough people show they're interested, then it'll be added to my list of future fanfics! Five requests are what's needed for them to be added.
And if you choose to wait till the end of the month to read, that's okay! Requests can be made up until November 7th, when I post the list of the lucky winners!
Hope you all enjoy!
Series
- Part 3 of Fictober
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开始于2018年12月30日，2025年8月10日正篇完结，手绘漫画，共829页，缓慢上传中。
“也许从我遇见你的那一刻开始，一切就注定再也无法回到原样了。”
sans，只是在snowdin一如既往地履行着哨兵的职责，却在ruins的入口附近偶然抓获了不知为何偷偷摸摸进入了undertale的ink！sans。在一番“友好交流”后，sans接受了ink的请求，前往他推荐的多元宇宙，并在那里遇到了一个会改变他一生的怪物——当然，对于那个怪物来说也是如此。 -
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The Barrier is down, monsters are walking the streets, and reality just got a lot stranger.
Rhea is human, unprepared, and stuck in a house full of wildly different, unpredictable skeletons. Some are warm, some dangerous, all impossible to ignore. Pulled through a mysterious machine, she’s trapped under their watchful eyes while the multiverse starts leaking into her life.
Rhea navigates the household of chaotic, flirtatious, and often deadly skeletons, while trying to come to terms with her new fantastical, but very real reality.
Darkly funny, magically strange, and dangerously charming. An urban fantasy reverse-harem story about survival, trust, and learning to live among the bones. -
Daisy Tinted Bones by FredTheREALAuthor
Fandoms: Undertale (Video Game), The Backrooms - Anonymous on /x/
26 Oct 2025
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The protector of Alternate Universes, Ink, departs of a mission to save four lost souls consumed by nostalgia, however the very thing that keeps the lost souls captive seems hostile and abstract in nature. The environment itself doesn't want Ink to succeed.
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You died.
Plain and simple, one moment you were there, strapped to the table in that ever so dark laboratory. Then a loud cracking had occurred - the sound of your own soul giving up. It had been deafening, like ice breaking beneath your feet. That purple crystalline heart shattering like fragile glass, unable to persist any longer.
The testing had been too much for you, not even you could persevere through it. Not after months—years.
You…died?
Then why were you here? More importantly where? What had
Gasterdone? And why did reality seem to glitch in and out with every painful thrum from where yoursoulshould be? And who were these skeletons that felt oddly familiar to yoursoul.>> Persevere?
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Cross doesnt do well in his head..
- Language:
- English
- Words:
- 1,407
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 13
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10. "Well why don't you just kill me?"
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Fell sans fell sans fell sans angst ahahahahahahahahahahahahahhaugh. Hm. I mean what. Fell sans and frisk but he's lowkey suicidal.Series
- Part 10 of Melting_Alliums' Whumptober 2025
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I ran out of tag room, so it’s being split up! Hope you enjoy nonetheless!
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- Part 2 of Cactus’ Kinktober 2025
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Nightmare can't hide it anymore... Killer remembers their first kiss and the next big step is on the way
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- Part 2 of Our Little Loves, For Good or For Bad
- Language:
- English
- Words:
- 3,229
- Chapters:
- 1/?
- Kudos:
- 6
- Hits:
- 39
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Sans, in accumulated rage from all the tests, pushes Gaster off a platform in the core. Rather than in the original Handplates, Gaster falls onto another platform, dying almost instantly. Betrayal between brothers, angst, sadness, and possibly a crack in a seemingly unbreakable bond to follow. (If I finish this) the brothers will begin to learn about their mysterious captor and who he was, after he was gone.
This work has gotten many good beta read critiques, and may someday be finished.