1 - 20 of 1,689 Works in Sans (Undertale)/Original Character(s)
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Summary
The first anniversary of the Truce between the Bad and the Star Sanses Nightmare hosts a party at the castle for all to attend. We meet the players in the party.... At the end an unexpected guest to the multiverse makes their apperance....
The tags will constantly be updated as the story goes
Series
- Part 2 of Into the Multiverse
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The Castles newest additions are trying to adjust to the change in their lives. Living amongst an Outcode and his subordinates. One in particular the castle residents seek to keep hold of. Past and current wounds have made that rather difficult for them to convince this individual. Will they choose to show a side of them that most don't see?
Series
- Part 4 of Kaleidoscope
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Red wakes up in an AU that's not his own. After being taken in by Sans, his adventure begins. Drama, violence, silly insults, actual serious moments, romance, and more!
I don't know what tags to use, so tag suggestions are welcome! -
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On the day of their 13th birthday everyone has a name appear somewhere on their body. A script different than their own, but still familiar and comforting nonetheless. It's said to be your soulmates handwriting and, when you make physical contact for the first time, it's to change to the color of their eyes. Or so the rumor goes. But everyone knows that's just an old wives tale since finding yours is so far and few between.
But then there's you. What the hell are you supposed to do with 12 soulmates?? At least your odds are better than most...
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"SELCOUTH - strange, unusual, foreign, and so, so... so familiar."
In which Dream---exiled and extremely bored---comes across a odd village and an even odder forest. Will there be strange creatures and occurrences? Enemies and friends?
... Maybe.
Will Dream make it out alive...? Most likely.
But he'll be back. We'll have to wait and see if he makes it out again, no? Either way, he'll never be quite the same.
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You, dear reader, have been transported into your own AU — as Sans.
Just when you’d begun to settle into this new, bone-white life, one small mistake sends everything spiraling.A malfunctioning machine, a flash of blinding light, and suddenly you’re falling through worlds — each one a reflection of stories you once imagined, and others you never dared to write.
Gaster calls it an experiment. Papyrus calls it an accident.
But Sans — your Sans — knows it’s something deeper.Every jump takes you further from home, and closer to the truth behind the tether binding your souls.
Will you find your way back… or lose yourself to the story you created?Whatever happens — the worlds will never be the same now that you are part of them.
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Sans meets an old robot monster whilst doing some CORE chores. It... gets interesting. And it will definitely not lead to anything. But that's later. Maybe. Sans is older than popular assumption.
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Frisk Starling should've been used to cases like these. After all, it was her duty to investigate. Give the victims their voice back, catch the sick freak who did it and give the broken families the justice she couldn’t have for herself.
That is until a string of murders throughout the county begin to appear. Women used like toys, mutilated and disposed of for the cops and journalists to find with only the tiniest slivers of useless evidence and the glaring fact that all the women...
Every…
Single…
One…
Look almost exactly like her… Frisk begins to wonder if maybe… the monster she's hunting down has turned her into the hunted.
And God, does she make the most exhilarating, delicious prey yet…
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Horror and my oc go to a gas station for snacks. Unspecified eating disorders make it difficult for both of them.
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I wrote this a while ago because it was late and I was in a bad headspace. Partially just me venting and projecting tbh.
- Language:
- English
- Words:
- 2,915
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 8
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Razz, a homeless teenager, gets grabbed one rainy, freezing night. Who are they? And what will they do to him?
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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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Frisk's spaceship crashed into an unknown planet, having only injuries and their determination they kept moving forward, ready for whatever this planet threw at them.
This is an Outertale inspired AU, enjoy!!
(Taking DECEMBER and JANUARY off to rewrite the first three chapters!!)
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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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My hatred grows, my determination intensifies. The dust surrounding me is insignificant compared to my rage toward the human. "I regret nothing," I say before unleashing my fury.
But then, Chara's words haunt me.
"Feeling something new, huh? I want to try again."⚠
- "Semi-Canon"
- This is just a fanfic that will likely end as soon as I run out of ideas. If you don't like what you read, I'm inviting you to leave! Thanks for stopping by! -
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One night. One mistake.
That’s all it took for Regina Williams to step into a world she doesn’t belong in, a world ruled by secrets, blood, and debts that never die.
Black, a skeleton monster bound by his own ruthless perspective, never owed anyone anything. Until her.
When fate drags them back into each other’s orbit, their uneasy connection threatens to unravel everything they’ve both fought to protect.
Between trust and betrayal, danger and desire...
one truth remains:
some debts can’t be repaid with money… only with the heart.
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Or: How Polly Became Poly
The origins and tales of my darling gremlin skeleton OC with a love for neon colors and heelies.
The story of how Polly's life was before becoming the healer for Nightmare and his gang, and some of the aftermath as well. Many downs, followed by ups, a nice slice of life for us and a new life for them.
It always gets worse before it gets better.
Series
- Part 2 of PPP Books
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Slay (SAVE) the Princess by CrossoverAU
Fandoms: Undertale (Video Game), Slay the Princess (Visual Novel)
01 Nov 2025
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Summary
You are in a basement in a cabin.
That cabin is in the woods.
In the woods, on his way, is a skeleton
He is coming to kill you.
Will you let him?
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The Serif household has been through many odd scenarios. After all, they are entirely comprised of other versions of the same two skeletons who got stuck in the world they have called home for six years, unable to return to their worlds and thus forced to carve out a life for themselves until further notice. All things considered, they found their stride and adapted to the ongoing weirdness of universe hopping.
That is, until she arrived. Flora, a woman so out of left field and disrupting their normality, appeared in the basement, battered and bloodied to hell and back. Stuck like all the others who had appeared before her, the Serif household is forced to accommodate her until she stabilizes, slowly beginning to get to know the lackluster and stone-faced woman who ensures they don't injure themselves via stupid means.
Few expect her to open up. Fewer expect her to accept becoming friends.
None expect for any of them to become much, much more.
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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 by 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. -
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In which neither Sans nor Ember know how to ask for a hug.
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