1 - 20 of 60,721 Works in Undertale (Video Game)
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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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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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Bells and Feathers by OctavianClef
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
19 Nov 2025
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Summary
Ceroba and Martlet are making a home for themselves on the surface, enjoying their freedom and mourning their losses. But things can never be that simple. Can they?
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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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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
- Language:
- English
- Words:
- 633
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 7
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Summary
The monsters from the underground have been freed by a supposedly human child, except the aren't fully human, they're a crossbreed.
The monster from the underground, or more commonly known as Barrier 78B to surface dwellers, are going to find out that they arnt alone, and that previously extinct or nearly extinct monsters are booming on numbers.- Language:
- English
- Words:
- 302
- Chapters:
- 1/?
- Kudos:
- 1
- Hits:
- 10
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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:
- 4
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The Demon That Comes When You Call Their Name by mikeyhasnotaste
Fandoms: Haunted Hotel (Cartoon), Undertale (Video Game)
19 Nov 2025
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Summary
When Chara accidentally kills a monster and the Underground loses hope, they reset back to the evening before they had run away from home and headed to Mt. Ebbot.
Frightened by being back on the compound, Chara escapes early, forgetting to bring their map, compass, food, and water.
Lost, scared, and alone, Chara almost loses hope until they come across a promising looking hotel...
I do not consent to my work being used to train AI.
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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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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:
- 6
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Summary
Ink meekly replied "What if... We can create and destroy without fighting?"
"How the hell is that going to work!? We're just destroying and recreating the multiverse over and over again!"
~-----------------------~
Ink and Error finally find a solution to a problem that only creates more problems.
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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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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
It’s Undertale, but it’s actually Rain World.
A scavenger falls into a hole in a mountain. Turns out there are a whole bunch of slugcats in there. Sure hope none of them are traumatized, that would make things a lot harder!
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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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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:
- 3
- Hits:
- 11
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A Patch of Sunlight by Windskull
Fandoms: Deltarune (Video Game), Undertale (Video Game)
19 Nov 2025
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Summary
Tenna, a boss monster, still remembered the surface. He allowed himself to get lost in the memories from time to time, of better times before the war, when he could stretch out in the sunlight and enjoy the warmth. When he could still entertain human and monster alike. These days he doesn't do much other than reminisce on better times and hope that he lives to see the barrier shattered. But that's okay, at least he's not alone!
Meanwhile, Spamton Recruits the most tollerable people he knows, Ramb and that kid that likes to come around, Suzy, for help bringing a little piece of the surface down to the underground for Tenna.
Whumptober day 29: "I hope you see the sun someday in the darkness."
Series
- Part 26 of Windskull's Whumptober 2025