1 - 20 of 41,410 Works in Sans (Undertale)
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Summary
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
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It’s a very… delicate time of year. Or so you’ve been told; you can’t say for certain that you’ve ever been around a monster during their Season. Your stay at Nightmare’s castle has certainly prepared you for all manner of strange and unusual occurrences, but this?
This is a whole different beast.
Series
- Part 2 of PROPAGANDA
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Summary
Undertale's story starts with an ostracized human falling into the underground. This time that human is Luz.
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With a toy gun in hand and justice in his soul Clover embarks on his mission up Mt Ebott to find and rescue five missing children. But all too soon he becomes a pawn in a plan to steal the fallen human’s souls. Trapped in an endless cycle of death and reloading Clover must find a way to remember the past, evade Asgore’s armies, defeat his Royal Guard’s, liberate the fallen humans and end the death cycle he’s been trapped in. But will he have the strength, will, and determination to succeed? Or is his fate wind up like all the others who came before?
Series
- Part 1 of Fallen Justice
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You Can Hold My Hand If No One's Home by Evans_Multiverse
Fandoms: Undertale (Video Game)
19 Nov 2025
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Summary
Nightmare wasn’t at all expecting Dust to confess to him on a random afternoon, and it was odd that Nightmare couldn’t sense it coming. He didn’t believe he harbored the same feelings for Dust, even if he cared deeply for the other. He didn’t think he was ready to date someone so suddenly… So why did he say yes?
And then shenanigans ensue. Shenanigans that might include unpacking your childhood trauma. And also identity crises, it turns out. Maybe more.
Or
Self proclaimed #1 Dustmare Shipper writes a self indulgence fic of mostly fluff and goofiness
(Summary will probably change, since this one kinda sucks lol)
Title is from Line Without A Hook by Ricky Montgomery
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Summary
After going through favoritism your whole life, your father forces you to get married to a neighboring kingdoms king, too bad he doesn't want anything to do with you
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Progressive || ErrorInk || High School AU by Flynn (FlynnWritesToo), FlynnWritesToo
Fandoms: Undertale (Video Game)
19 Nov 2025
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Summary
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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Curiosity Killed The Cat by JimmeeJametron67
Fandoms: Undertale (Video Game), Deltarune (Video Game)
19 Nov 2025
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Summary
Gaster's first encounter with The Depths.
And his last. -
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Summary
The eclipse should not have happened. It arrived centuries early, tearing open a forgotten door between worlds, and Dust is the one who accidentally opened it. When an ancient lunar deity steps through, a being formed from the moon’s first shadow, Dust finds himself face-to-face with a god no mortal remembers.
[Novembmare - Day 19: Fantasy]
Series
- Part 87 of Undertale Fics
- Part 97 of One-Shots / Two-Shots / Three-shots
- Part 34 of Prompt Fics
- Part 19 of Undertale Fandom Event fics
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Summary
Cross and Killer are sent on a mission following an unusual tip from Error. What they find isn't at all what they expect... and much more than they bargained for.
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Ever wanted to know what kind of person the mysterious SwapFell!Papyrus is? Starving for SwapFell content in general? Me too! Let's explore this underdeveloped character together and uncover who he really is. >:3
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TW: Self-Destructive tendencies portrayed. Nothing too graphic in the first chapter, but if you are particularly sensitive to this topic, this fic may not be for you.
- Language:
- English
- Words:
- 2,050
- Chapters:
- 1/?
- Hits:
- 5
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Summer Adventure 9 by DangerousTigerBasement
Fandoms: Dragon Quest Series, One Piece (Anime & Manga), Kirby (Video Games), Smiling Friends (Cartoon 2020), 龍が如く | Ryuu ga Gotoku | Yakuza (Video Games), Undertale (Video Game), RWBY, Kingdom Hearts (Video Games), Sonic the Hedgehog - All Media Types, Team Fortress 2, Super Mario Bros. (Video Games), ジョジョの奇妙な冒険 | JoJo no Kimyou na Bouken | JoJo's Bizarre Adventure, Persona 3, 光神話 | Kid Icarus (Video Games), Soul Calibur, Persona 5, Fire Emblem: If | Fire Emblem: Fates, 原神 | Genshin Impact (Video Game), Pocket Monsters | Pokemon - All Media Types
19 Nov 2025
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Summary
The year is 2024. Following the time travel incident that happened in 2023, a timeline has been created where a Dark Future has occurred. Four heroes will go on their own separate journeys to set right what once went wrong.
Lance, a veteran adventurer who seeks the Wish Stones to find a solution to the other timeline.
James, who must fight old enemies of his father after finding out what they did in the Dark Future during his unintentional visit there.
Nori, a Keyblade wielder from the Dark Future who traveled through time in order to set right what once went wrong.
And Luzie, a mysterious woman whose only clue to go off of is a recollection of someone else's plane trip from Alaska after an adventure has transpired there.
Series
- Part 2 of Summer Adventure
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Summary
You work for Alphys, doing daily tasks and cleaning, working on minor projects here and there. One day, Alphys decided to drop a bomb on you. She had created the celebrity robot known as Mettaton. You had seen MTT before, not only in the Underground but on the surface as well. And, he was pretty hot.
You then have to work with said hot famous robot. And everyone is making jokes about your human-ness and why Mettaton suddenly wants to know everything about you.
You didn't think that moving to the Underground was going to be this weird. You kinda like it.
- Language:
- English
- Words:
- 6,118
- Chapters:
- 1/?
- Hits:
- 8
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History of DUSTSHIFT by DUSTSHIFT
Fandoms: Undertale (Video Game), Storyshift (Undertale AU), Dustshift (Storyshift Take)
18 Nov 2025
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Summary
A three-part summary of the history, world, and events leading up to the primary narrative of Dustshift, a Storyshift Genocide Route take, starting from the very distant past before the war broke and led to the Monsters' sealing inside of Mt. Ebott, to the present with Chara.
Series
- Part 1 of DUSTSHIFT
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Summary
You’re a villager in Dreamtale that decides to take the place of Nightmare Sans and eat the apples instead to protect him. It backfires and causes both guardians to turn to stone while you end up killing off the village. Now you feel lonely and can’t help wanting someone to stay with you.
Only problem is that you’re a woman with baby fever and the Sans AUs just so happen to act and look a lot like children…
(Dream and Nightmare are like 5,2 while the others are smaller in this story, it’s important)
(Maybe bi-weekly updates?)
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Summary
The forest stirs with new life at dawn, and Nightmare rises with it, bound to the heartbeat of the woods. When a great silver-feathered owl descends before him, the forest itself speaks through its eyes.
[Novembmare - Day 18: Owl]
Series
- Part 86 of Undertale Fics
- Part 96 of One-Shots / Two-Shots / Three-shots
- Part 33 of Prompt Fics
- Part 18 of Undertale Fandom Event fics
- Part 3 of Nightmare - Forest Spirit AU
- Language:
- English
- Words:
- 514
- Chapters:
- 1/1
- Kudos:
- 4
- Hits:
- 13
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Summary
An ill-thought through party in the woods leads to you getting lost with a dead phone and no way to know where you're going. When all seems lost you stumble across a cabin hidden in the dark depths of the surrounding trees. In classic horror movie hero fashion you find yourself entering the creepy house to find more than you bargained for; including quite a few skeletons unearthed from the closet.
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Susie trusts neither Sans or Ralsei and won't let Kris suffer due to a boneman, so lets both meet in a Dark World she creates.
- Language:
- English
- Words:
- 349
- Chapters:
- 1/1
- Hits:
- 27
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Summary
One last reset, a true reset. She will fix everything, she will truly save everyone this time.
Frisk is not ending this without Asriel. No matter what he says, this won't be a happy ending without him on the surface.
But is determination enough to save someone who doesn't want to be saved?
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He wasn't always shattered across time and space. He wasn't what you might call a "family-oriented" person, but there were people he cared about. People he might even do crazy things for, if it meant a better life for them. He was tired, but not in the way people around him thought. He was tired of seeing his family suffer, tired of being useless. But he won't be for much longer.
TLDR; an AU where Gaster is Sans and Papyrus' brother (rather than the usual interpretation of him being their father)
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In the timeline with the happiest possible ending, the heroes of the Delta Rune get to live the rest of their lives in peace and harmony!
Or at least they would if they, and the rest of Hometown, weren’t a load of weirdos. These are just some episodes in the irregular and sometimes stupid lives of the heroes of prophecy and their families!