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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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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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SUNSHOT: UNTIL THE YELLOWLIGHT DIMS by Laserpointers, Saurdino420
Fandoms: Multi-Fandom, OneShot (Video Game), Undertale (Video Game)
27 Jul 2026
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On the eve of Halloween, an unassuming notification from The World Machine leads Sunny, her girlfriend Lily, and the messiah of the worlds, Niko, through familiar worlds and unfamiliar means. There, they are actively being pursued by a reality-defying entity, while they try to find a way to SAVE the worlds, whilst confronting themselves.
Or: The player gets isekai'd into like, five different worlds. Stuff happens.
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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:
- 4
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Book 3 of the DELTACLIPSE series. One day after the events of High Card, Scoville Circulo, along with his friends, stumble into a new area of the Dark World, and the Canadian's morals are truly put through the test as the lives of people close to him may be in jeopardy.
Series
- Part 3 of DELTACLIPSE
- Language:
- English
- Words:
- 19,562
- Chapters:
- 5/?
- Hits:
- 39
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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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Summary
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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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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There is something soft touching my face…It smells good too.
I’m laying face down on…Something. Probably Flowers.
I’m alive? How? I don’t feel much pain either.
How did I live, let alone make it out uninjured from that fall?
The story of the Human with the SOUL of Perseverance.
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Frisk is finally on the surface. Grillby is running his restaurant, Papyrus is off at college, and Frisk and Fuku are back in school. But all is not well. For one, Frisk doesn't legally exist.
Frisk's grandparents have been looking for them for years. They've never lost hope, and are relieved when they learn their grandchild is not only alive, but completely healthy, if a little vitamin D deficient.
Series
- Part 3 of Assassintale
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Este nuevo universo de Undertale, creado por mí jijij, trata sobre una antigua maldición impuesta por los humanos debido al miedo de que los monstruos lograran escapar de la barrera. La maldición fue diseñada para afectar a las futuras generaciones, manifestándose con el tiempo como una enfermedad que cambiaría para siempre la historia.
Hay nuevo personajes en mi au por si acaso :(, si les incomoda, pueden dejar de leerlo, no hay problema a :DD, pero si les interesa el lore adelante
Series
- Part 1 of MiasmagemTale Au
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Long ago, the races lived in peace and harmony. However, everything changed when a monster was suspected of murdering an innocent human and absorbing their soul. This act of violence triggered a brutal war between humans and monsters that lasted for five long years. If you want to know more, read it; it's my first fanfic. Is it bad? Yes. Could there be something completely unrelated written in the story? Certainly, but I found it too interesting to keep it just in my head.
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The Barrier has been broken for over four years.
Monsters were forced to leave Ebott Province, dispersing and wandering until Calloway City takes steps to help. Now monsters have a place where they can find jobs, try to make a living, and really enjoy their freedom.
But humans don’t change much.Brenda is a typical office worker who enjoys genuinely good coffee. She's not the sort to take sides, advocate, politic, or take risks; but being average won't protect her.
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Chara and Frisk have spent the last two years travelling the world helping to rehabilitate the image of monsterkind and pursue any leads that might lead to restoring Asriel's SOUL. With no leads in sight, it's up to an old friend to propose a new path forward...
Series
- Part 4 of Where the Flowers Grow
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В скучную жизнь Крис ворвалась новая подруга, что втянула её в похождения в алкогольном и наркотическом угаре.
- Language:
- Русский
- Words:
- 2,245
- Chapters:
- 1/11
- Hits:
- 16
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Don't bear the weight of the world alone by SkyWatcher3
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game)
27 Jul 2026
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After her fight with Clover in New Home, Ceroba, in the middle of rethinking her entire life, chooses to save one child's life, and the consequences of her decision changes the fate of the entire Underground forever.
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Crossovertale - An Undertale AU Crossover by Samgamer901
Fandoms: Undertale (Video Game)
27 Jul 2026
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Summary
It’s an Undertale AU Crossover. That’s about it. It will probably have a lot of OC’s, they will all try to be explained. Also, you’ll wanna have pretty good knowledge about Undertale, the more popular AU’s, and maybe Deltarune to read this.
- Language:
- English
- Words:
- 6,228
- Chapters:
- 5/5
- Hits:
- 23
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Nothing Left to Lose by TheBigRedAnt
Fandoms: Deltarune (Video Game), Undertale (Video Game)
26 Jul 2026
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The only question that hung on Asriel’s mind was a rather explicit one. It was one formed from the intensity of life’s emotions, he’d been at highs, he’d been at lows.
And yet he’d never been this low before.
And so he asks, “what the hell do I do now?”
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Or Asriel returns after chapter 5’s weird route to attend the funeral of Kris, Noelle and his father. He and Susie set off into the deepest darkness to save the day. And along the way confront old demons, new enemies, and things that should stay in the dark. -
Interference by EpicDarkner_Catbull
Fandoms: Deltarune (Video Game), Undertale (Video Game)
26 Jul 2026
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Summary
Error and Ink travel to Deltarune out of curiosity, but it's kinda weird.
ON-GOING!
(This is my first work with Undertale AUs, please dm if anything is wrong lol)