1 - 20 of 777 Works in Swapfell Papyrus (Undertale)
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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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You finally have found a reef that has been untouched by sirens, so you bought what you thought was a house on the island next to the reef. When you get to the island, you find that everything is not what it seems and the mysterious call that you have all of your life is acting up in your new location.
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You were an ordinary guy living an ordinary life.
You didn't expect to be anything more than another cog in the wheel that is life.Until you looked at the void, and the void looked back.
Now you have to deal with family and romance drama surrounding 12 skeletons!
Can you fix this machine before you end up speared shishkabob style on a bone or worse, taken by the void that yeaned for you?You thought Vanessa was supposed to be your friend!
(i literally pulled this idea out of my ass crack 😭 expect SLOW updates and inconsistent writing)
(YES the title is from Kid Cudi since songs motivate me and that happened to be the one that gave me an idea) -
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While waiting for the other people who will be living on the space station with you, you get a distress call from a ship. Bring that ship in, you meet fifteen skeletons, but release a mysterious virus that seems to be affecting them. Hopeful you can survive until help arrives or you find a cure.
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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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Would They Let You Paint Their Nails? (headcannons) by Creeky_Cricker
Fandoms: Undertale (Video Game)
16 Nov 2025
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Summary
its in the title, cute little paragraphs of their responces
Series
- Part 2 of ut oneshot shit
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Making A Monster by absurdmagewrites
Fandoms: Undertale (Video Game), Underfell-fandom, Underswap-Fandom, Swapfell-Fandom, Fellswap-Fandom, Fellswap Gold-Fandom, Horrortale-fandom, Crafttale-Fandom, Seaswap-Fandom
16 Nov 2025
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Sometimes life throws you a curveball. For you, your curveball was going to bed looking like a human, and waking up looking like a monster.
A skeleton monster to be precise.
With the barrier breaking, a large surge of magic descended on the town you live in, and transformed you overnight. Unsure what to do with you, and the others changed, you're ushered into a facility until a monster with similar magic can take you to teach you how to wield the now uncontrollable magic you've been given. After waiting in this place for four years, you'd given up hope that anyone would ever want to take you.
What a surprise for you when you find out that someone does. A lot of someones.
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The thing about soulmates is, no matter what pries them apart, they always...always find a way back together
Chapters 1-3: Prologue
Chapters 4+: Main Story
*This story has LONG chapters. I’m not sorry**This is a rewrite of I Have The Power of Gaster AND Anime On My Side. Same concept, with a bit of a serious feel.*
**Please be aware that this is not like my usual reader-inserts!! This story is in 3rd person pov, very vague description of a female reader. Unnamed (Pet names only). No use of y/n, y/e/c etc.**
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If the shadows had eyes and ears and hands to work with, would it worship the light or scorn it?
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A mutation has spread across the globe when monsters were released, humans either dying as their bodies couldn’t handle it or mutated with the rest.
The mutation was simple really, a change of dynamics. Humans started taking more unusual forms, growing more than a few ears, eyes, arms, legs, shit even a head at one point. Or body morphing differently altogether. Turning into their worst nightmares.
Y/N being a young child at the time of the outbreak changed with the rest of her family, half of her family died or killed themselves resulting in her being an Orphan at a young age, left alone in the world as her body shifted and changed. Body becomes leaner, smaller…cute. Cat-like ears and tail sprouting from her body, legs breaking and reforming into back hind legs of a cat's, fur covering her legs stopping at her waist.
Not only that, but she is an Omega.
Of course she doesn’t know oh no no no blissfully unaware, well that is until an over caring human Frisk decides to visit the Orphanage dragging along her friend Chara. Whom in turn absolutely dreads the visit. Let's say…frisk was the door to meeting a rowdy group of skeletons…
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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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Slay (SAVE) the Princess by CrossoverAU
Fandoms: Undertale (Video Game), Slay the Princess (Visual Novel)
01 Nov 2025
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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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(Y/N) doesn’t remember much. Not since they awoke midway up Mt. Ebbott, having mysteriously collapsed onto the grassy terrain.
Thankfully a tall skeleton passing by spotted them and vowed to helped them recover, as far fetched and impossible as it seemed. After all….
Monsters didn’t exist…
Did they?(A classic undertale Sans and Papyrus AU x reader fic with a Twist ;P)
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You save a skeleton monster from dusting in an alleyway, good for you. Unfortunately tho, he might be a tiny bit smitten and a real pain in the ass
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Undertale Kinktober 2025 hypnosis edition by Chris_ghosty77
Fandoms: Undertale (Video Game)
31 Oct 2025
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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
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Welp. Here we are. I'm doing this trope because I wanted to put my own take on it. There's a lot of skeletons and there's only one you. At least the only other human in the house is only rooting for you.
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While walking home, you get followed by a group of cat-callers. Panicking, you slip into the nearest gas station and call the first number you can think of, your overly intimidating neighbor and tentative friend, Black. His brother picks up instead.
Series
- Part 3 of Fluff Fics (Random Word Prompt)
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You are on death's bed, there is no denying it at this point. Your good friend listened to you rave about an upcoming otome game you have been desperate to play since you've heard of it's creation. Only to sadden when your prognosis would keep you from seeing it in your lifetime. Well this good friend manages to get you a copy. So who would have thought that when you eventually passed on, you'd wake up as a healthy you? With goat ears, nubby horns, and a cute fluffy tail? Also a barrage of skeletons waiting on you hand and foot, calling you their queen... After playing many routes, there is one thing you are sure of... To make sure Black doesn't kill you like he does in the game... yet you don't seem to understand the stark contrast of yourself vs the queen as the skeletons do... and if you aren't careful? Black and the others will fall head over heels for you.
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You are a college student that just want to get yourself together, get a degree and make money enough to live alone in a cozy flat. But what should you do when you struggel with studies and different jobs while sharing a life with skeletons whom seem to don't like you?
Determination won't be enough to keep living in this hell. And a friend of yours make sure you remember that everyday.Now the breaking news:
- I love comments
- No beta reader
- English is not my mother language
- Long time until next update
- I am as bad as Asgore to name and nickname the characters -
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Summary
A young Papyrus from another AU has found himself in the original Undertale universe. He meets the original Sans and his brother Papyrus-- (wait what-) and other versions of them as well who had been there for a while. The machine Sans had given up working on malfunctioned at somepoint, bringing versions of himself and his brother randomly. Now this version of Papyrus was here too.
- Language:
- English
- Words:
- 589
- Chapters:
- 2/?
- Hits:
- 38