1 - 20 of 41,447 Works in Sans (Undertale)
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He fell on his ass in front of the towering stone door.
“Ow,” he said emphatically.
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Sans takes a late night stroll through Snowdin.
- Language:
- English
- Words:
- 2,720
- Chapters:
- 1/1
- Hits:
- 0
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You are suuuper obsessed with Galaxy and its thing, especially the universe! You spend over Years building a machine and another over years to make it perfect, night and day, even when you're sick, you still do the things you love.
You close your eyes and ears to the people who call you crazy, calling you mad, insulting your creation, Etc. Etc.
But who are they to stop you anyway??And dear god, after years of tears, blood, and mind... the MACHINE IS PERFECT! At least that was what you thought.
You get sucked by your own creation when you try to make coordination and testing on it, and now you're here.. with a skeleton.. oh my god
It's wonderful! YOUR MACHINE IS WORKING! HAH! You can't wait to slap the mouth that calls your creation useless by this INVENTION~
Well, after you successfully back to your own universe, survive on this world, well, you're gonna get help from the skeletons infront of you... right?
And then you can ask a few questions about this universe, hopefully he wants to answer them... he will... You're going to make sure he gonna help you, if it means begging.
Alright... here we go.
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Five months ago, Mount Ebbott split open and freed an entire population of monsters, who struggle to reintegrate into modern society. At Ebbott University, Babs begins her graduate degree, studying and teaching metal and glasswork to the newly enrolled interspecies student body. She, alongside her closest friend Vera, are unaware of the fight the future holds for them.
This is another fic written in tandem with my bestie Bepandahalf's fic Strong Nuclear Force!! Go read it it's so fuckin good y'all
- Language:
- English
- Words:
- 14,928
- Chapters:
- 4/?
- Hits:
- 1
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You are a shapeshifter with the rare ability to turn into an orange fox—a secret you’ve kept hidden, knowing humanity once hunted your kind. Living near Ebott, you slip into the night to run free, though the fear of discovery always lingers. Meanwhile, Sans and Papyrus have unknowingly welcomed a manipulative woman named Kora into their lives.
Behind her sweet facade, Kora is a gold digger using the brothers for wealth, status, and comfort, willing to lie, fake affection, or even blackmail them if needed.Eventually Kora stumbles across your apartments terrible condition, deciding to become “friends” with you and inviting you to stay in the mansion with her and her apparent mates. It started off fine, until she began to spread lies— rumors.. Even blaming you for mistakes, stealing. And god who knows what else.
Maybe you can help these skeletons see past whatever game she’s playing at? (Anti-Harem, That’ll switch into a actual harem..)
As well as machine chaos.
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Error in Gravity Falls by Kalisto_prikalisto
Fandoms: Undertale (Video Game), Gravity Falls
22 Nov 2025
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Summary
Error Sans, finds himself in Gravity Falls of the 1970s. Discovered weak and helpless by the young Stanley and Stanford Pines, this cynical destroyer must learn to exist in the most "defective" of worlds, side-by-side with two brothers who have more than enough problems of their own.
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Your name is unimportant. Your job is nonexistent, really. And your (ex)roommate just kicked you out in the middle of a surprisingly cold November night. But whatever. You don't care. You'll be fine.
Keep telling yourself that as you freeze to death, idiot.
But you'll be fine, for one reason! Two, actually. Two people - monsters really - who just so happen to have the same names as some fonts you know of? You stay with them instead, just to get back on your feet, and a single question rises to your mind.
What the hell is keeping you here?
(Explicit chapters marked with ***. Explicit chapter count: 2)
Book One: The Answer (Chapters 1 to 60)
Book Two: The Question (Chapters 61 to Present)Series
- Part 1 of The Sans x Reader Trilogy and Extras
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For a while now, Mettaton has admired Papyrus from afar.
On the cameras in the lab, he saw his face on the screen.
Everything he did, everything he said... All of it was enough to make a robot such as himself flustered.Eventually, he asks his friends, Undyne and Alphys, for advice on how to navigate these new, exciting feelings
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Monsters have appeared from a mountain, in your town! Interested in this new development you head home with high hopes. Sadly it seems humans will be humans, and for some reason you keep getting caught in the cross fire. Luckily you've made some new friends to help you out along the way!
You were just about to head into the nearby town when your phone went off, it was a text. From Otto of all people. A video of him, and what looked like monsters walking behind him. "You should come home (Y/n), things just got interesting."
Reader is female (sorry) there will be smut at some point, don't know when though...
Series
- Part 1 of Blood N Bones Stuff
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Summary
主线。
两世。
重要之人。
于是,以下。- Language:
- 中文-普通话 國語
- Words:
- 1,585
- Chapters:
- 1/1
- Hits:
- 0
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Someone powerful is tired of the bad endings. Time to take fate into their own hands.
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EBOTT CITY, 191X
Three years have passed since the two districts of humans and monsters reunited, leaving their differences, which once resulted in a civil war, behind in order to strive for a brighter future together.
In the area of Roadin, you can find a little stationery shop called "Doodlesphere", owned by a certain skeleton monster: a carefree, cheerful artist and storyteller named Ink. Despite leading a relatively unexciting life up until now, his natural ability to run into trouble causes him to bump into Error one day, the so-called "Destroyer of Progress".
Because Ink is always having dreams about other universes with Error being his archenemy, the artist decides to follow said businessman out of curiosity, only to realize that he and other "outcodes" are experiencing similar dreams that seem to be connected with one another.
So now what? Ink working together with the short-tempered Destroyer to solve this mystery sounds like a dangerous idea, right? Especially if you consider Error's relation to Nightmare's gang, the infamous mafia group which is causing restlessness in Ebott City right now...Series
- Part 1 of ÆTHERVERSE (Steampunk UTMV)
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Life is monotonous and dull, but it’s okay. You’re fine.
Assignment after assignment, test after test, meaningless conversation after meaningless conversation. It fills the void like a flitting firefly in the smoggy night sky, a brief flash of light— followed by an endless expanse of nothingness.
That’s okay. You’ve grown accustomed to it like a goldfish stuck in a glass bowl. You swim, back and forth, over and over and over again until you can’t anymore. It keeps you occupied, distracts you from your lonely, miserable existence.
Until you meet someone who simultaneously fills the void, and drags you so much deeper into it.
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Underfell Sans x ReaderA story about the woes of young adulthood. Includes themes of abusive relationships, inappropriate age gaps, mental illness, and substance abuse.
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What did the skeleton ask his girlfriend? by amyluvscats
Fandoms: Undertale (Video Game)
21 Nov 2025
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Your (asshole) of a friend Malissa is getting tired of you being "boring". Things change when sweet little y/n meets some skeletons that might just change her life for the better.
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Escape isnt always easy and freedom isnt what its cracked up to be.
Series
- Part 2 of Ebbot Mountain Zoo Chronicals
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After a pacifist and genocide timeline, Frisk and Chara come to form an uneasy alliance in a new warped timeline. The six fallen humans have been miraculously resurrected and scattered across this new underground, along with new locations and monsters appearing in this warped reality.
Follow Frisk and Chara in their journey to collect the six fallen humans and uncover the mysteries of this new anomalous timeline.
- Language:
- English
- Words:
- 4,001
- Chapters:
- 1/?
- Kudos:
- 1
- Hits:
- 40
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Sans never cared for anything except Papyrus and science. When he meets Frisk, the seventh human to fall underground, he begins to shed his aloof mask and realizes how much Frisk has to teach him about hope and love.
- Language:
- English
- Words:
- 1,377
- Chapters:
- 1/1
- Comments:
- 1
- Hits:
- 14
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Summary
A novelization of Undertale, as should be evident by the title.
But... there's a little twist.
Series
- Part 1 of Undertale: The Novelization
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Look what happened to my good intentions by Dale (Dale_the_Human)
Fandoms: Undertale (Video Game)
21 Nov 2025
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Summary
You are a monster-sympathizer who has just rescued a skeleton monster (UF Sans) from his abusive owner. Unfortunately for the both of you, the man left before transferring ownership and the skeleton is frozen in place from the last command.
(Based on the premise of "Slavetale" by V_mum) -
Heat of the Moment by FandomWorld9728
Fandoms: Undertale (Video Game), Swapfell red - Fandom, Fellswap Gold - Fandom, Underswap - Fandom, Swapfell - Fandom
21 Nov 2025
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Summary
Being half demon and half human was hard. It affected your life in interesting and traumatic ways. Luckily for you, you had a pair of skeletons who would help you through whatever life threw your way. Only, things got more complicated when different versions of them began to show up.
Series
- Part 9 of Undertales Across the Multiverse
- Part 9 of Papyrus/Reader Fics
- Part 7 of Sans/Reader Fics
