1 - 20 of 44,470 Works in Sans (Undertale)
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The festival is today. This event is the trigger. You can't stop what will happen now, the consequences of your actions are taking hold. This will misplace Kris and Noelle, whether they are alive or dead by the end of it...
...but, Susie checks up on them just a bit sooner than she usually would have thought to. The pen of fate now lies in her hands, and she must write a better future, before it's too late.
- Language:
- English
- Words:
- 2,536
- Chapters:
- 1/?
- Hits:
- 0
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Deltarune react to by Galaxy_Poupee
Fandoms: Deltarune (Video Game), Undertale (Video Game)
27 Jul 2026
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You can't just go back and act like you didn't do anything.
They need to know.
And who knows—maybe they can fix things.
Or:
Deltarune characters react to the Angel and discover the truth about their future, the prophecy, and more!
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PunmasterLV16's Shatterverse Timeline: Undertale: Crystalized: Remastered by Keyblade_Master_DJ102202
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), SMG4 (Web Series)
27 Jul 2026
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Description: Dragged from Copper 9 through unknown circumstances and into a mountain civilization, Crystal faces weirdness and wonders beyond her imagination, as well as mental challenges that push her more than any physical injury can.
So the question is... CONTINUE or GIVE UP?
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Error sabía que estar con Ink significaba una muerte segura...
Pero no le importó.
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Noelle has been infatuated with the mysterious, abrasive new girl at school for a month now, and it seems most of everyone knows it other than her. Susie, the new girl, has grown jaded from moving from town to town, and has taken on the role of the local bully. Oddly enough, the only one who seems to escape the wrath of the purple beast is Noelle, who lays awake each night wondering why. As Susie allows herself to be more than her anger, and Noelle more than her fear, the two girls find themselves growing closer, as if their relationship was meant to be. But as Susie continues to jump the track of fate and spit in the face of the prophecy, will love truly find its way to the girl?
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"Help Wanted: Must have steady hands, a strong stomach, and an appreciation for fine cuisine."
Saving the Underground was easy. Surviving a minimum-wage shift under Muffet’s six-armed tyranny while Sans drops in to make terrible puns and give questionable tips? That might actually take some real determination. Requested by Goat and Coat.- Language:
- English
- Words:
- 6,175
- Chapters:
- 1/1
- Hits:
- 8
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Truth is, nobody really knows who Gaster was. A legend, a story, a massive hallucination or an illusion created by humans to keep them in check.
They say he tended to avoid people, when he was still in this world, tending to take less used paths, hiding in the shadows, avoiding any interactions. Back then, people tended to avoid him themselves, even before they realised all the atrocious things he had done.OR
A dive into a life of man who had disappeared, a slice of life over a course of 100 years.
Featuring: malfunctioning adults, war trauma and extended descriptions of weather- Language:
- English
- Words:
- 1,233
- Chapters:
- 1/17
- Hits:
- 11
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Messiahs in the Multiverse by bahtisikikpiyade
Fandoms: Shin Megami Tensei Series, Undertale (Video Game), Deltarune (Video Game), Undertale AUs - Fandom
27 Jul 2026
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A mysterious force has transported the messiahs into this new multiverse, scattered (save for Flynn who is with his friends and Demi who is with Lucifer and Pixie). How will they shape the fate of the worlds they are suddenly put into? Only time will tell.
- Language:
- English
- Words:
- 2,395
- Chapters:
- 2/?
- Hits:
- 17
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papyrus is an unpopular boy in hometown. He goes to the local middle-school and is 12 years old. He's not really bullied, but no one talks to him.
Mettaton is the most popular and prettiest boy in school- he just moved here from New York. He's 13 years old. Everyone instantly knew he was a bit fruity; Even though he's just moved here. He's never been really bullied- everybody wants to be his friend.
I hate myself omg
- Language:
- English
- Words:
- 689
- Chapters:
- 1/?
- Hits:
- 6
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Big Shot Beginnings by c00lsk3l3t0n95
Fandoms: Deltarune (Video Game), Undertale (Video Game)
27 Jul 2026
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Spamton G. Spamton has had enough of being trapped. He refuses to be kept in the dark any longer. He needs, once again, to pursue the light.
Papyrus just wants to help him. Maybe, just maybe, it'll make up for what he's done.
Series
- Part 7 of Papyrus
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Chance meetings between one particular SOUL and many of the faces around Hometown, written as a collection of "what if [character] met the SOUL?"
(Basically, taking the idea behind Chapter 21 of "Assorted Green(text)s" and "Heart-to-Heart" and applying it to a selection of other characters.)
Series
- Part 3 of Gray's (Usually Short) Stories
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Unknown Energy - Undertale x Jujutsu Kaisen by BreachOparinZefiro
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), 呪術廻戦 | Jujutsu Kaisen (Anime & Manga)
27 Jul 2026
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A small detail leads Sans to discover the key to traveling between dimensions—not to the surface, but to another world; for him, that was enough.
With the sole aim of keeping his people away from the human, he lied and claimed it was a portal to the surface. Consequently, the Underground’s more than six thousand inhabitants abandoned their home in less than forty-eight hours, leaving the subterranean world empty for Frisk’s arrival.
Now, Sans must face the consequences of his actions, wondering if the world of sorcerers was, in reality, more dangerous than a genocidal human with control over time and space.
English is not my first language. The original story in wattpad where is MUCH advanced.
https://www.wattpad.com/story/387370594-energ%C3%ADa-desconocida
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A Three Leaf Cocoa Flower by The_Ouroboros_Awakes
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Undertale Red & Yellow (Video Game)
27 Jul 2026
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It's been 5 Years since Frisk fell into The Underground, woke up the ghosts of Chara and Clover, freed Monsterkind, and brought Clover back to life. 6 Years since Clover fell into The Underground, found a new family, and sacrificed themself in the first place. But it's been over 100 years since Chara fell down. 100 Years they've been dead with no hope of returning to life like Clover. Is this really the only happy ending for them?
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Who would have thought that an argument between you and your sibling would lead you to meeting monsters. Let alone one of them turning into the love of your life.
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!!!This story contains 18+ NSFW content!!! Please keep this in mind while you read!
Red wakes up in an AU that's not his own. After being taken in by Sans, his adventure begins. Drama, violence, silly insults, actual serious moments, romance, and more!
I don't know what tags to use, so tag suggestions are welcome! -
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A post‑Pacifist slow‑burn Sans/Reader romance about healing, magic, prejudice and found family.
You work in a bookstore. He’s a skeleton with a soft heart, dangerous magic and a talent for making you laugh, even when the world feels heavy. Papyrus adopts you immediately (and with great enthusiasm).
As monsters struggle to integrate on the surface, you’re pulled into Snowdin’s orbit: political tension, magical injuries, protective brothers, ensemble chaos and a relationship that grows from banter and awkward sweetness into real vulnerability… and eventually, shameless smut.
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Sans looked at the ceiling in pure boredom, unable to sleep as he listened the guards opening the gates of the inmates one by one. It didn't take long for him to hear a guard slamming his club against the bars of his cell.
He'd been told a doctor wanted to do check up on all the inmates, so he didn't really question it when he was forcibly pulled out of his cell so early.
Being pushed around wasn't fun, but at least it was exciting to meet new people that weren't convicts. They had a tendency to be assholes and not appreciate his humour anyway.
"Sans?"
He saw you, with half of your face covered by a white mask as your eyes squinted with curiosity.
You were looking at him so intensively, it almost made him feel uncomfortable.
"Please, have a seat."
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Sorry again for a late upload.
Series
- Part 2 of Prime
- Language:
- English
- Words:
- 4,953
- Chapters:
- 1/1
- Hits:
- 5
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Ideas for fan fiction by Ayajan_b
Fandoms: Undertale (Video Game), Deltarune (Video Game)
27 Jul 2026
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I don't know how to write fan fiction, so I'll be posting proposal here
I give you an ideas, you (maybe) give me a fanfic
(If you do this, please write about it in the comments)
P.s (Nightmare is my favorite and most of my ideas are related to him)