1 - 20 of 1,681 Bookmarked Items in Alternate Universe - Horrortale (Undertale)
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In a world where soulmates exist, monsters and humans have one thing in common: the first time two soulmates touch, a mark randomly appears somewhere--anywhere-- on their bodies to represent their match.
It still doesn't make relationships easier...but maybe it does make them a little more interesting!
* A collection of Soulmate AU vignettes for the Sanses and Papyri of various multiverses -- Undertale, Underswap, Underfell, Swapfell, & Horrortale *
COMPLETE! - 4/7/19
- Language:
- English
- Words:
- 20,189
- Chapters:
- 10/10
- Comments:
- 562
- Kudos:
- 3,782
- Bookmarks:
- 624
- Hits:
- 48,123
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I miss my wife toby please bring him back
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What's worse than going to prison for a couple of years?
Falling to an underground hell that appears to be mid-famine.
Why is this skeleton so intent on seeing your boobs???
(Sue me, I'm bored)
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SASSY BRAVERY READER, horror sans my beloved
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Sans hates and struggles to live. And therapy isn't working
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You were so tired of the lies and abuse. Ever since you took Jessica up on that offer, you had been living in a nightmare. Now you wanted out.
It's time to confront Sans with your truth. How, you might ask?
Why by whipping your soul out.
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Your partner takes you aside on Valentine’s Day, somewhere nice and private.
You can guess at his intentions, especially when he tells you there’s something he wants to give you, but the chocolates and flowers you’re half-expecting don’t come.
Instead…
Instead, he talks to you, telling more than you already know about monster customs, monster relationships, monster milestones.
He thinks it’s time to do one of those right now, on your cute human love-holiday, a specific show of intimacy and trust like no other.
He touches his phalanges to his chest and his soul—the culmination of his entire being—comes forth.
And he wants you to hold it.
(Self-indulgent Valentine's inspired drabbles)
- Language:
- English
- Words:
- 3,820
- Chapters:
- 14/14
- Comments:
- 49
- Kudos:
- 1,092
- Bookmarks:
- 131
- Hits:
- 11,728
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I love it….. so….. so much…..
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A collection of self-insert drabbles for Halloween, cross-posted from tumblr.
AUs featured: UT, US, UF, SF, HT
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Inspired by a tumblr ask that posed the following: "What if the skeles had a SO that dyed their hair pretty frequently. One day they dye their hair color to the skeles magic color saying, " it's my favorite color now since it reminds me of my favorite skeleton!""
If you're interested in a Sans or Papyrus from Undertale, Underswap, Underfell, Swapfell, or Horrortale, there's a chapter in here for you! ;)
- Language:
- English
- Words:
- 2,941
- Chapters:
- 10/10
- Comments:
- 92
- Kudos:
- 1,672
- Bookmarks:
- 171
- Hits:
- 14,334
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Same You, Different Font by radskull69
Fandoms: Undertale (Video Game), Deltarune (Video Game)
14 May 2026
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Summary
Ah yes. The classic ‘’Heather’ convinces the skeletons you’re an evil human so now it’s a EVIL reverse harem’. Right?
Oh? But what’s this? A TWIST?
Sans couldn’t live with himself after what happened to you, going near insane after you’re gone. So behind the others back he uses the machine to undo what he did, except it didn’t. He can still feel his sins crawling on his back.
Oh well, it’ll all be worth it once he has you back in his cold hands again. Screw the other skeletons.
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Bookmark Notes:
Chapter 10
Anti harem situation , Sans had moved in with ya and paps, used the machines and pulled in some alts
Judy/bunny monster girl met you in college and she found you alongside taking your advice to heart, she doesnt seem too bad
Things started to go to shit when your sleepwalking went outright possesion and you disturberd everyone, Everyone started bring toxic, they took your art studio/the attic :[
You killed youself due to everyones treatment of you, Sans caught up in his grievence, pulled an Au of you to his universe
This new Y/n is the middle adopted child of the Deltarune Dreemurs, they're friends with dlta snas
The skele's have to make up their mind about the "new" ya whilst thr new ya will have to eventually uncover the fact that you kys
Its a good take on that genre
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Of reader killed themselves and sans did the machine to kidnap us thru universes.
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Something in the woods kept everyone on their toes, sparking rumors and myths about what possibly might be stalking through the trees. A huge undead skeleton, that some say might be a vengeful woodsman, an experiment, or a freak of nature.
You just call him Sans.
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I REMEMBER READING THIS LIKE A YEAR OR TWO AGO BUT I REMEMBER THAT IT WAS THE BEST READ OF MY LIFE I NEED MORE OF MY BOY I LOVE HIM AAAAA 🥹
In seriousness, this is absolute cinema <33
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Done short
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You had just made it out of the ruins until you ran into Sans. He seems helpful, friendly even. But the moment you mention leaving, he becomes… not so friendly.
Now as you run through the woods with only a burnt sweater to keep you warm, you can only hope he doesn’t catch. You have a feeling you’ll be in for a bad time if he does.
Series
- Part 2 of Requests
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Love it\~~~
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Eating good 😋
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You’re young. You marry the wrong man.
You wish you were dead.
Be careful what you wish for, Seven.
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Or, you find yourself Underground surrounded by starving, tortured monsters who know you're the last soul needed to attempt to break the barrier again. You said you wanted to die. Don't back down now.
Series
- Part 8 of How To Be A Human Being
- Part 9 of I/Me/Myself
- Part 2 of Into the Woods
- Language:
- English
- Words:
- 20,410
- Chapters:
- 7/11
- Collections:
- 1
- Comments:
- 56
- Kudos:
- 120
- Bookmarks:
- 28
- Hits:
- 1,358
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LURE OF THE FUCKING MAW. IM CUTTING CLAUDES BALLS OFF AND NO ONE CAN STOP ME. HE DESERVES SO MUCH PAIN AND SUFFERING YOU DONT EVEN KNOW (well you do ive ranted to you many a time that i want his head on a stick but YOU KNOW)
Seven deserves so much more and its aKDSFJK i need to go beta the doc again.
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Lure of the Maw by JayBird421Summary:
You’re young. You marry the wrong man.You wish you were dead.
Be careful what you wish for, Seven.
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Or, you find yourself Underground surrounded by starving, tortured monsters who know you're the last soul needed to attempt to break the barrier again. You said you wanted to die. Don't back down now.
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7
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Peak!!! Omg it's so good!
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You were a normal human. Seventeen, just got accepted into college. You had a full life ahead of you, close friends and family. You still had things to do. You weren't done yet.
The universe doesn't seem to care, and you wake up in a lab to a narcissist skeleton and trauma.
What the heck. This is NOT what you meant when you said you were tired of life, bro.
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Or, your soul is placed into the body of eight-year-old Papyrus.
A retelling of Running Up that Hill, but Keigo and Apollo (Sans and Papyrus) are swapped.
Lets see who has plot armor now.
Arc 1: Secundogeniture (1-6)
Arc 2: Sin (7-?)
Arc 3: Sanctuary (?)
Arc 4: Stalking (?)
Arc 5: Salvation (?)Series
- Part 4 of How To Be A Human Being
- Part 2 of Hounds Of Love
- Part 3 of I/Me/Myself
- Language:
- English
- Words:
- 21,837
- Chapters:
- 10/?
- Collections:
- 1
- Comments:
- 145
- Kudos:
- 451
- Bookmarks:
- 119
- Hits:
- 7,865
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Bookmark Notes:
giggles evily.
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Army Dreamers by JayBird421Summary:
You were a normal human. Seventeen, just got accepted into college. You had a full life ahead of you, close friends and family. You still had things to do. You weren't done yet.The universe doesn't seem to care, and you wake up in a lab to a narcissist skeleton and trauma.
What the heck. This is NOT what you meant when you said you were tired of life, bro.
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Or, your soul is placed into the body of eight-year-old Papyrus.
A retelling of Running Up that Hill, but Keigo and Apollo (Sans and Papyrus) are swapped.
Lets see who has plot armor now.
Arc 1: Secundogeniture (1-6)
Arc 2: Sin (7-?)
Arc 3: Sanctuary (?)
Arc 4: Stalking (?)
Arc 5: Salvation (?) -
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1
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“I believe I found us another teammate.”
“I hadn’t realized I was looking for another one.” Nightmare stated coldly, crossing his hands in front of him. He could feel his tentacles twisting below him in annoyance.
Series
- Part 1 of Untitled Multiverse
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Your ideas always sound brilliant in your head, for some reason. Sadly, you can't see their dumbness until they blow up in your face. That's you.
He has a peaceful life now on the surface, but humans are mostly afraid of him. He doesn't care, but sometimes he feels lonely, so he pranks everyone like there's no tomorrow. That's Sans.
You hate pranks.
Sans loves pranks.
You want to be left alone.
Sans hates loneliness.
Then you have an idea. A brilliant idea.
Than Sans has an idea. A brilliant idea.
After all, it's all Sans' fault. Why won't he just go away?
After all, it's all your fault. Why are you giving him all this attention?Series
- Part 1 of Seven shades of dumb.
- Language:
- English
- Words:
- 32,461
- Chapters:
- 16/?
- Collections:
- 4
- Comments:
- 1,037
- Kudos:
- 1,844
- Bookmarks:
- 371
- Hits:
- 24,974
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[Honestly..
After everything you've been through you didn't expect to find yourself here, in the middle of a fight between two men you recognized too much to be normal, with your unconscious husband in your arms having a near death grip on both newborns while you could at least stand without feeling your legs numb.
You lost hope of being able to hide when both turned to look at you and your dear still sleep in your arms, whom you quickly hid from sight with your cloak, covering him as much as you could.
"Fuck.."]
Or; After years of being responsible for making the impossible possible in a crumbling world, your people receives an unexpected but not less welcome peace. You don't plan on freeing your claws from this chance.
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8
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You had finally gotten to a point where you can consider your roommate Sans as a close friend. You're comfortable where you are, going to school for art and working part-time to split rent.
Yet, just as you're getting used to this system, two new skeletons appear in your shared apartment in the middle of the night. Are they going to go against your system and disrupt your life? What exactly will be changing?Series
- Part 6 of Reader Inserts
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16
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Ch 15
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Summary
Sans did not remember his previous name, only that he had been human. Rebirth in Undertale was novel, but he adapted, until he realized that the universe he was in was not the original one.
Unfortunately, it was too late when the machine took him to another universe, into a room full of skeletons.
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Sans no recordaba su nombre anterior, solo haber sido un humano. Renacer en Undertale fue una novedad, pero se adaptó, hasta que cayó en cuenta de que el universo en el que estaba no era el original.Lamentablemente, ya era tarde cuando la máquina lo llevo a otro universo en un cuarto lleno de esqueletos.
Nota: Sé que suena como tragedia, pero en realidad es una historia bastante esponjosa de curación, o al menos eso intento. Nuestro protagonista tiene mucho trauma y lo va a sanar en una mansión llena de esqueletos incómodos
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You were just walking home. A tear in reality split open underneath your feet and suddenly you were falling.
Falling
FallingThen you fell up and onto the tiled floor of a basement lab.
Now all of a sudden you're in another world and surrounded by 6 strange skeletons (plus one's brother).
Being terrified of all things horror and monsters, what are you to do?*Will contain mature themes but no smut*
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Au Undertale pacifista
Versión Almas gemelas (resonancia)
La casa de los esqueletos el clásico de traer versiones tuyas pero está vez solo de Sans (de un tipo específico de Sans, horrortale, Flowertale , Dustale , Error y Ink )
El Oc tiene miedo a los MONSTRUOS (de fantasía, en su mundo no hay monstruos ) se adapta
Esqueletos flechadoz automáticamente o en proceso
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Dr. Vendette is Southern Trebane Hospital's "Miracle Doctor." Her quick thinking, cool demeanor, and no-nonsense attitude make her the star attending doctor in both north and south Trebane. Her reputation professionally is glowing, but everyone who knows her personally has differing reviews. More people hate her than she knows. Regardless, her untimely death shocked the whole of Trebane, and no one can argue that the city has lost its miracle.
Upon her death, Dr. Vendette is not greeted by pearly gates or hellish fire but by a disembodied voice in a dark void. The voices argue over her fate, and she wakes to find herself facing a new challenge. The young doctor has become the antagonist in a dating sim synthesized from the multiverse of her favorite game, Undertale. She will have to survive being the villain many believe her to be. After all, that's what an antagonist is, right?This is a reader-insert! A better explanation will be in the author's note at the end of chapter 1, but I will say this is a writing experiment for some of the darker themes produced by my other story of a similar concept, "They Call me Antagonist, but I prefer Anti-hero."
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Latest Chapter: 02
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It's your birthday and you want to try a new position with your Soulmate Sugar. It goes well until you lose strength in your muscles. Good thing Sugar is strong enough for both of you.
- Language:
- English
- Words:
- 2,046
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 6
- Kudos:
- 22
- Bookmarks:
- 2
- Hits:
- 140
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