1 - 20 of 11,759 Works in Undyne (Undertale)
Navigation
Listing Works
-
The God Of Destruction In Undertale | DBS x Undertale | Crossover by 38q12
Fandoms: Undertale (Video Game), Dragon Ball
13 Oct 2025
Tags
Summary
Lord Beerus, the God Of Destruction, finds himself in the Underground with a small child. With no way to leave, he travels the Underground with the strange child he met, meeting new beings known as monsters. Will he do what he does best and destroy everything in his path to get out? Or will he find some new friends on his journey?
- Language:
- English
- Words:
- 10,536
- Chapters:
- 1/1
- Hits:
- 0
-
Undertale Yellow: Defiant Hope by Kanakoke_K9907
Fandoms: Undertale Yellow (Master Sword Video Game), Undertale (Video Game)
13 Oct 2025
Tags
Summary
Snowdin, a place usually synonymous with joyous family outings and quality time, became the stage for a cruel twist of fate for young Kanako. She and her family, the Ketsukane, had ventured there for a day of simple pleasures, unaware of the darkness that had recently descended upon the snowy landscape. A human, clad in a dusty tutu, had arrived—not misunderstood or scared, but driven by a chilling love for the game, a thrill for chaos. In this alternate universe, their attacks were not born of fear, but of a cold, calculated desire to kill.
This human stumbled upon the Ketsukane family and, without hesitation, caught Chujin and Ceroba off guard, slaying them where they stood. All Kanako could do was watch in terror as her parents fell, their forms dissolving into dust. The memory, a searing brand, haunts her to this day.
Now many years into the future, she has grown and changed.
-
Tags
Summary
She had been stripped of her bravery a long time ago. She was so fearful of many things, but a pair of skeletons challenged her to change that. Y/n had to learn to be courageous as well. Otherwise, she would never see Sans again.
-
Tags
Summary
6 weeks after the barrier is broken, Alphys isn't speaking to anyone. Undyne starts to get very worried and tries to figure out how to help her and maybe finally get to kiss?
(True lab trauma)(before the beach scene) (beach scene will come later dw)- Language:
- English
- Words:
- 1,875
- Chapters:
- 1/?
- Hits:
- 3
-
Tags
Summary
When you were ten years old, your parents sent you to stay with a relative of yours from Ebott. Their villa was situated up on the mountainside, and you loved to explore the forestry. One day the ground gave out and you fell Underground, and faced terrors beyond your imagination. You were missing for weeks.
After you managed to miraculously return to the surface, your parents were relieved - but deeply troubled by your 'delusional ramblings'. They were convinced you were 'crazy', and feared how that would reflect on their reputation. Your doctors advised sending you to an in-patient psychiatric facility, which is where you spent the next few years in intensive therapy and counseling.
15 years later, you're a young adult with a somewhat manageable grip on life. You keep your head down, attend the social events that are expected of you, and try to be as unnoticeable as possible. Your parents arranged a suitor for you, and you're to be wed within the next year.
That is, until, those monsters your parents and doctors tried to convince you weren't real suddenly crawled out from the Underground. And they're a lot different from what you remember.
[[Underfell!verse.]]
-
Tags
Summary
A collection of small moments from a human having a hard time navigating the world. A chance meeting with Papyrus and Sans makes the journey a little easier.
- Language:
- English
- Words:
- 987
- Chapters:
- 1/?
- Hits:
- 4
-
The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Deltarune (Video Game), Doctor Who
13 Oct 2025
Tags
Summary
He thought that the radiation would kill him. He thought that his time as the Doctor would come to a sad and brutal end. He was wrong. And that was so much worse.
In his efforts to find himself, and without his companions, he accidentally stumbles onto a monstrous civilization miles below the Earth. With his newfound DETERMINATION and some new allies, he'll come to realize what it truly means to be a friend, and learn how to live his last lives with his head held high.
And make sure that, just this once, everybody lives.
OR
Undertale but the Tenth Doctor replaces Frisk. Fluff, angst, AUs, and timeline shenanigans ensue.
*No knowledge of Undertale or Doctor Who is required, though it is helpful if you've experienced at least one of them.
-
Tags
Summary
That hall, bathed in rays of gold. The comedian manages to convince the fallen to RESET. Not that they were opposed to it in the first place. They do it right, this time, and their life on the surface begins. Perhaps, for once, they gain love, instead of LOVE?
-
The Last Amalgamate (The Peacock AU edition) by WingsOfShen
Fandoms: Undertale (Video Game), Undertale Yellow (Video Game), Kung Fu Panda (Movies)
12 Oct 2025
Tags
Summary
After millennia, the barrier keeping the monsters Underground has finally broken. The entirety of the Underground does not remember what happened. All that is known is that a living human child was involved.
Before starting a new life on the surface, Frisk joins Alphys in sending the final amalgamate back home to her family, making new friends along the way and giving them their much-needed happy ending.
(Based off "The Last Amalgamate" by VyletBunni and the DeltaTraveler team. Credit goes to them for the animation series.)
Series
- Part 4 of The Peacock AU
-
Twin Runes by Thealmoghtbeyonder2099
Fandoms: Undertale (Video Game), Deltarune (Video Game)
12 Oct 2025
Tags
Summary
Twin Runes es un AU cómico en su mayoritariamente alegre centrado en los universos Deltarune y Undertale. Una fuerza desconocida ha provocado que aparezca un punto de conexión entre los dos universos, lo que hace que Frisk y la molestia fantasmal Chara tropiecen en la vida de Kris en uno de sus muchos reinicios (para gran disgusto de Kris). Se produce un caos que rompe el juego.
La traducciones del "los pájaros y abejas" hasta el "No sirve pa' nada" no son mías. Del resto de traducciones si son de mi autoría
-
A world where your impact was heard elsewhere by dream_sky
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword)
12 Oct 2025
Tags
Summary
"A long, long time ago, another human fell down here."
"Injured by their fall, they cried out for help."
"...But nobody came."
Or
Chara didn't wait as long for help, and by the time Asriel works up the courage to investigate the cry, they're already gone. The butterfly effect (and the addition of a bunch of my headcanons and ideas) does the rest.
(currently in hiatus purgatory)
-
Kinktober 2025 by scratchybrainz
Fandoms: Undertale (Video Game), Team Fortress 2, Dangan Ronpa: Trigger Happy Havoc
12 Oct 2025
Tags
Summary
It's kinktober. Any and all fandoms I can think of will be included.
-
Tags
Summary
Skeletwins Sans' diary.
(Note: I HIGHLY recommend reading the main Skeletwins story before reading this fic. Spoilers for Snowdin Adventures with the Skeletwins ahead.)
Series
- Part 14 of Skeletwins Side Stories
- Language:
- English
- Words:
- 748
- Chapters:
- 3/?
- Hits:
- 15
-
Tags
Summary
For a while now, Mettaton has admired Papyrus from afar.
On the cameras in the lab, he saw his face on the screen.
Everything he did, everything he said... All of it was enough to make a robot such as himself flustered.Eventually, he asks his friends, Undyne and Alphys, for advice on how to navigate these new, exciting feelings
-
Tags
Summary
Once monsters had been released from the underground, the stage was set for a new revelation in the world of science. many people saw against integrating monsters into human society, but you encouraged it. with the discovery of magic and how it can interact with modern science. Now with the new applicants, your discovery will only increase and maybe your relationships with monsters, too. stay tuned for new journeys with your monster friends and learning things that have...multiverse impacts.
-
Justice Evolved by The_Spar1an
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game)
12 Oct 2025
Tags
Summary
Clover remembers.
After spending quite some time dead, He finds himself with memories he'd rather not have.
Memories that tell him who he truly is.
Memories that haunt him.------------------------------
This work will contain Original characters for the sake of worldbuilding, and I fully intend to make some of them play major roles in the story.
This is an alternate universe to Undertale Red and Yellow.
This work will be from Clover's POV. (written in first person, not second person, aka "I" instead of "You") -
Tags
Summary
Years after monster and human society merge, a young monster returns to the Underground with the intention of finding a story to tell. She finds that story in a stack of well loved letters between one Cathode and Mailman.
NOTICE: The final arc of this story contains implied suicidal ideation and serious self-destructive behaviors. If you are not in a position to read this sort of thing, you can stop reading after Chapter 22 and skip from there straight to the epilogue!
Series
- Part 1 of Dear Mailman: Yours, Cathode
-
Tags
Summary
The Barrier's broken and the monsters are stepping out into a Surface they've dreamed of for years uncountable and forgotten. The human that helped them break through is at their side, just as unfamiliar and unsure about the Surface as they are. Upon first glance, the monsters stumble upon another human as they emerge from their prison. A human like any other, but to the monsters 'any other' human has been instrumental to regaining their footing on the Surface. Will this one be too? And are blushed cheeks something every human wears on the Surface? Come along on a journey with humans trying to understand magic, and the memories that follow. Following not as candles that warm, but as shadows that haunt. The human condition changes ever so much when exposed to magic, but how much? And how much can one human take before becoming determined?
A smorgasbord of events from tidying up a goat family to magic of the soul!
This is an amalgamation of the One Falls series into one story with the chapters
1-30:One falls, more rise
31-61:More rose, one remains
62-104:One saved, more left behind
104-120:One Falls: Change Of Heart(s)
121-181:More invited, one to celebrate
182-428:Soul of our Hearts -
Tags
Summary
You are suuuper obsessed with Galaxy and its thing, especially the universe! You spend over Years building a machine and another over years to make it perfect, night and day, even when you're sick, you still do the things you love.
You close your eyes and ears to the people who call you crazy, calling you mad, insulting your creation, Etc. Etc.
But who are they to stop you anyway??And dear god, after years of tears, blood, and mind... the MACHINE IS PERFECT! At least that was what you thought.
You get sucked by your own creation when you try to make coordination and testing on it, and now you're here.. with a skeleton.. oh my god
It's wonderful! YOUR MACHINE IS WORKING! HAH! You can't wait to slap the mouth that calls your creation useless by this INVENTION~
Well, after you successfully back to your own universe, survive on this world, well, you're gonna get help from the skeletons infront of you... right?
And then you can ask a few questions about this universe, hopefully he wants to answer them... he will... You're going to make sure he gonna help you, if it means begging.
Alright... here we go.
-
The Tales of Kháos: A Reapertale Re-Take by Palito266
Fandoms: Undertale (Video Game), UTMV
12 Oct 2025
Tags
Summary
A sequel to the previous three stories: "Tales of Infinity," "Tales of Pragmatism and Fabulism," and "Zero Tales."
Follow the gods: a brand new species that had been given consciousness by a mysterious form and a body as well. Explore how these deities accustom not only to their existence but also to the world around them that they must protect.Reapertale was created and is owned by Renrink. Inktale was created and is owned by Comyet. Dreamtale was created and is owned by Jokublogs. Errortale and Fresh Sans were created and are owned by Crayon Queen.
(English is not my main language, so there may be some grammar issues.)
Series
- Part 4 of Markings of the Cosmos