21 - 40 of 3,152 Works in Sans Ensemble (Undertale)
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OG universe but the siblings are Swapdream instead of normal Dreamtale and Swan (Swapdream Nightmare) has the Bad Sanses with him (Killer, Horror, Dust and Cross) and then they all kiss
(and no, there is no incest..)
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Horror hated to waste food. They all knew that. Nightmare knew that.
So why was Nightmare’s breakfast tray still sitting out in the hall?
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Ah shit I didn’t think of a title by Ginger_Candy (Candy_Cryptid)
Fandoms: Undertale (Video Game)
29 Nov 2025
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“It’s embarrassing,” Dream wants to say, voice shaking through Nightmare’s fingers. His hips buck into Nightmare’s touch, and his sockets heat up in his frustration.
“It’s just me,” Nightmare answers, like Dream said anything at all. “What’s there to be embarrassed about?” -
Progressive || ErrorInk || High School AU by Flynn (FlynnWritesToo), FlynnWritesToo
Fandoms: Undertale (Video Game)
29 Nov 2025
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Ink notices that someone has started watching him again lately, so in order to stay safe, he and his friends make a plan for him to pretend to date someone.
That someone is Error, who is not at all excited to go through with this, especially with the huge crush he's had on Blue since he was a kid.
However, the more these two pretend, the more fun they have. What will happen between the two? Will Ink's stalker leave him alone, or will it take a turn for the worse?Series
- Part 2 of Progressive Archive || Sans AUs
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You have had a tough life that has left you scarred and untrusting of others. Growing up in a mage family obsessed with power and ensuring their lineage, you are the black sheep of the family, possessing a green soul of kindness and excelling in healing and growth rather than the combat magic your family specializes in. Trapped in a loveless relationship with a controlling, abusive partner chosen by your family to ensure a 'proper' match, you live in fear of triggering his anger, often resorting to your magic to heal yourself. Every aspect of your life is controlled by someone else, leaving you resigned to survival and scraping together what happiness you can.
What you could never foresee is the way a miserable night out with your fiance would lead you to a drunken one night stand with your soulmate.
Nor could you predict you would have 9 more soulmates out looking for you.
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Error wakes up in a game he never chose to play—Until The Last Breath, a brutal survival world hidden between life and death. The only players? People trapped in comas. The only way out? Win.
To survive, he must fight through deadly floors, forge uneasy alliances, and follow three unbreakable rules:
[ 1. GAME OVER means death, both in-game and in real life. ]
[ 2. Artifacts must be crafted from Fragments found throughout the world by a Player. ]
[ 3. Reach the final floor before the chronometer runs out… or fade away forever. ]
There are no second chances. No resets. Just the questions: can Error and his team beat the game before it beats them—and can love survive in a world designed to tear everything away?
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SonnetTale Part 2 - A Voice Awakens by DinofelisSnow1985, silverryu25 for silverryu25
Fandoms: Undertale (Video Game)
28 Nov 2025
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I got permission from silverryu25 to write a continuation of this little gem that is SonnetTale. I hope i'll do it honor.
Series
- Part 2 of SonnetTale
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Prompts/one shots by ZekielMelody
Fandoms: Undertale (Video Game), 妖怪学校の先生はじめました | Youkai Gakkou no Sensei Hajimemashita | A Terrified Teacher at Ghoul School! (Manga), Servamp (Anime & Manga)
28 Nov 2025
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Just some thoughts i could not remove from my head that i decided to just post
)
Chapter 1: Ink!sans centric
Chapter 2: Abe no Seimei centric- Language:
- English
- Words:
- 677
- Chapters:
- 3/?
- Hits:
- 53
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“Don’t,” Dings interrupts, his face twisting into a grimace, “Their head is already big enough.”
“You’re just jealous of my amazing skills when you’re built like a twig.”
“There’s nothing to be jealous about having a head full of air and no brains.”
“You say that as if you didn’t overshot your shot and brought a gaggle of skeletons over to our universe.”
or
Reader works for Gaster and this somehow led to them meeting alternate versions of his children.
Series
- Part 8 of AL’s Reader/OC-Insert Fics
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Rowan was living... About as well as she could with her new dad.
He was sweet, and his honey bo bitty, Tangerine, was one of the funniest little guys ever. She loved every moment with them.
But memories of her past still haunted her. Screams and cries echoed through the night and visions of abuse tormented her day and night.
Her dad had been looking for something to help her. Maybe a new friend could help her out?
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Exactly what it sounds like; Flufftober 2025 with UTMV, except there's a different ship (almost) every chapter. Every chapter is in a different universe--except when they aren't. I don't know what else to say. Expect OOC-ness and fluffiness.
Also, I apologize, half of these ships do include Nightmare. I have a favorite.
Now including a table of contents! And if you can't tell, this won't be finished by the end of October. We persist, however.
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A slow-ish burn Nightmare x Swap fic. (I don't know how to make a summary but will write one when this is finished, sorry)
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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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Beyond the Void by Ophidio
Fandoms: Undertale (Video Game), Five Kingdoms - Brandon Mull, How to Train Your Dragon (Movies), Stray (Video Game)
26 Nov 2025
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The entire point of this fic was that I wanted to throw Sans AUs into as many fandoms that I have not/rarely seen it in as possible.
[This is not a bunch of oneshots. I promise there's an overarching story line.]
Tags will be added as the story progresses.**
The multiverse has never been safe.The Undertale multiverse. Quite the phenomenon, yes? Yet, something has gone wrong. Error, the infamous destroyer, has gone missing. And it seems he started a chain reaction as more Sanses go missing.
Believe it or not, the Void is not nearly as empty as one would think. Yes, there are those who fall into exist within the Void. There are also those who keep it in working order. Janitors they are called. The Void doesn't like people in general. Especially not those of great power such as the Destroyer or the King of Nightmares. Normally, the Void would just wipe them. But this time, it can't. So what do the Janitors do? Dump the offenders in the nearest habitable multiverses while they try to figure out what the fork is going on.Friends must be separated for the sake of survival and the sake of salvation. Can they find their way home? Will there be home left to return to?
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A household full of skeletons are competing over the attentions of one love.
This isn't that house though.Unbeknownst to the group secretively wrestling with their chaotic love lives and universe-meddling machine, another house a few doors down has been gifted with its own skeleton posse clamoring for the attentions of their own little lady.
A little old lady by the name of Mabel.Is there a bitty or a monster you would like to have a bitty version to drop into the story? I might find a way.
Lots of plot to come, aiming to update monthly ideally, depends on work and life! -
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I made a THING
It is POISONOUS
Do not EAT THING
PLEASE
Just stare longingly at THING
IT PREFERS IT- Language:
- English
- Words:
- 1,980
- Chapters:
- 1/1
- Kudos:
- 4
- Hits:
- 67
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The anniversary of the Seafoam Grove's final campaign is today. Memories of the past follows Dust, tormenting him. He misses his brother and wishes to have given him a proper goodbye. Thankfully, his mates are there to help him through it.
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"I'm sure you're wondering what's going on here."
"Not really."
"You are genuinely one of the most pedantic people I have ever met in my existence."
"Well, I don't know what that word means, so therefore I can't be it.".
.Ah, frick, just my luck. Reincarnation as a skeleton with godlike magic capabilities.
This should be fun.
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Two friends, split across the Multiverse.
Two friends, with opposite ROLEs of the Protector and Destroyer.
Both just want to find their friend, for them to be ok.
The Multiverse has bigger plans for them, however...
One friend fights valiantly for what is right.
The other falls into the darkness.
Or: two kids make themselves spawn in the UTMV as Ink and Error, and both are overpowered.
Generally random updates but I try to keep it consistent to once a week.
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For as long as you remember, you've only known nothing but cold and the feeling of worthlessness. You once had a source of light in the dark but it no longer exists. Will you find it again with your clouded thoughts and memories? Or will you succumb to the rising waters and drown?
In which, you are an AU sans with severe depression, self worth issues and hazy memories of yourself—just wanting to go home…