1 - 20 of 173 Works in Post-Deltarune Chapter Two
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Assumption
*Something you expect about someone or something, without proof or knowledge if it’s correct. E.g. Bias.Gregory did not expect a ball pit of all things to take him to a completely different world.
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After his defeat as NEO, Spamton finds his way into Castle Town, and comes face-to-face with both old and new friends.
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Noelle Holiday is a FREAK by fartsmella287
Fandoms: Deltarune (Video Game), Undertale (Video Game)
23 Oct 2025
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POST-SNOWGRAVE CHAPTER 2!
Noelle returns home from an exhausted day and needs to release some of her stressOr
When Noelle finally gets to spend time with her childhood friend like old times, an unknown entity controls them and forces her to do things she doesn't want to (and for some reason she enjoys it)
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The Fun Gang™️ bakes together, featuring egg-sniping, sexual tension and a roommate with too many intrusive thoughts.
Series
- Part 1 of A little too gay Deltarune Fanfics
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For the quiet and reserved Kris, life is spent observing from the sidelines, even when a TV show about two shy boys in love mirrors his own unspoken feelings. His silence is comfortable, but it's a comfort he can't afford.
This fragile peace is shattered by a horrifyingly realistic nightmare: Ralsei, the person he cares for most, is wounded and dying at the hands of a shadow, and Kris is frozen, unable to speak the words that could save him—"I love you."
Waking in a cold sweat, Kris makes a desperate decision: he must go to the Dark World and confess his feelings before his nightmare becomes a reality. But when he finally stands before Ralsei, the same paralyzing silence from his dream takes hold. With the words trapped in his throat and the memory of his vision haunting him, Kris must find another way to break his curse and speak his heart—before it's too late.
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After the events of the Cyber World, Kris returns to help the unconscious Berdly.
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Tributary: A Deltarune Fanfic Collection by Boh_No, DE__EMBER (Boh_No) for BloomingMiracle (Luna264)
Fandoms: Deltarune (Video Game), Undertale (Video Game)
08 Oct 2025
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An ongoing collection of Deltarune short stories– Single-chapter one-shots and multi-chapter [Big Shot]s, mainly 'AU's and 'What If's
[EDIT: 5/1/2025]
Fanfiction is strange.
It often meets the reader in medias res, assuming the upfront work of having consumed an existing professional work.
For the big fandoms ingrained into popular consciousness- Spider-Man, The Little Mermaid...- there's a reasonable assumption that most people already know the basics.
And Undertale has reached that level for a lot of people.But Deltarune is its own thing. Its own universe, characters we love just cameos in the background of a new rich story.
It's like
An AU fanfiction.I'd suggest you play Deltarune. That you give Toby Fox's second major video game production a try, especially if you liked Undertale.
But if you don't, I just hope you can get something out of this anyway. That it still says something to you through the confusion of learning a brand new strange world without context.
If you are drowning in the unknown, maybe you can drink some of the water on the way down, and maybe it'll even be sweet.
Who knows.Thank you.
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Frisk appears within Hometown, shaking its monotonous atmosphere with sticks, determination, and gaming.
Many find themselves perplexed, Kris is upheaved, and Gaster is very, very interested.
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Section one description: After their world's dark fountain was sealed the Addison's opened their own store in the castle town. At this point The Addisons truly believed they were ready for anything that came its way. But when the Lightner Kris appears at the shop to give a certain pair of glasses to the only Addison working that day. It starts to look like they can't handle everything that comes their way…
Well at least not by themselves
You'll have to read this to find out the restif your just here for spamtenna skip to section two.
Section two description: After Kris and their friends defeated Tenna, Spamton finally thought Tenna would get what was coming to him. What he deserved.Spamton would get to see him feel what he had felt all those years ago. But when Tenna met his demise, Spamton didn’t feel the joy he thought he would.
All he felt was... empty.
But after a chance encounter in castle town, he didn't know how to feel anymoreSection one Addison and Spamton centered: done
Section two Spamton and Tenna centered: in progress
section three Addison and Tenna: to come
section four ???: to come
Updates every month or more -
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Follow the fun gang as they venture through the new dark world of blaring lights, ever watching cameras and rising stars all while Toriel is just learning what her child has been up to over the past few days.
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Deltarune after Chapter 2.
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At the end of deltarune and its prophecy, facing the ultimate sacrifice, Kris manages to save the world in exchange for their own life. After trying infinite possibilities, victory is at hand. While their friends fight against such a terrible ending, their soul gives them a final reward :An adventure after the end.
This story will be about the last school days of Kris, Susie and Noelle, and how they take on the main roles in their school's final play before graduating. In these last weeks, both Kris and Susie must confront their unspoken feelings, and the ever approaching goodbye, as Kris will soon leave Hometown to attend university.
As the story unfolds, Susie discovers that Kris keeps a dark secret that hurts them deeply. Along side the last weeks of their schooldays, their entangled feelings for each other and the lurking shadow of that painfull mistery, both of them face an adventure after the end.
Expect a slow burn romance, and lots of Krusie, told from Susie's point of view.
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Not really Hot like Fire, but kind of Red Like Wine. by Kooki_914
Fandoms: Deltarune (Video Game)
13 Sep 2025
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Ignoring the in-game lore that darkners are objects, the premise is - Toriel, Queen and Spade King going out for drinks and find out that Darkners are a lot less tolerant to Lightner wine than they expected. Shenanigans ensue.
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turn it over (and over and over) by kazqedglitzr for tellmewhatyousee
Fandoms: Deltarune (Video Game)
31 Aug 2025
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Funny, how one short dream about the supercomputer Noelle used to play pretend with as a child can make her ponder so much in the night that follows.
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Spamton G. Spamton is coasting toward victory. With his new partner Tenna by his side, and a voice in his ear whispering success, nothing could bring him down now. It was all up, up, up from here.
After NEO failed, Spamton G. Spamton is in the down and outs. He has nowhere to go, nothing to do, no-one to be. Maybe giving that kid the Thorn Ring was a mistake after all... But then something changes.
After a long day of work, a shadowguy finds a strange puppet dumped in the trash can. Who is this broken Darkner? And what's that ringing?
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Post-Ch2 Snowgrave Spamton gets flung into the past, smack-dab in the middle of the Big Shot era. Everything is under control.
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Apple of My Eye by hautetropique (Dual_Screen) for Kaz3313
Fandoms: Deltarune (Video Game)
30 Aug 2025
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Hours into her night over at the Dreemurr's, Susie can't stop thinking about the person who made it all possible.
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A fic right after the events of Chapter 4, where after waking up in the middle of the night even after Toriel and Sans finally quieted down, Kris decides to take a break from dealing with being the SOUL's little puppet.
However, this leads into a deeper connection, one forcefully tied together by puppet strings, fate, and the mutual horror of their condition, but a genuine connection between friends that mold their roles in fate to be more comfortable. Both for themselves, and eachother.Series
- Part 1 of More than a Cage
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Seam knows their fate. They've resigned to it, opting to live the remainder of their days in quiet, unbothersome solitude until the last grain of sand falls.
Ralsei also knows, and Seam can see how it haunts the prince, a being too kind and honest to stare down the inevitability of destiny and emerge unshaken.
When the railroading hand of fate finally proves too much for Ralsei's sweet mind to handle, a still-living part of Seam finds themself doing their best.
They can't bear to see those tears again.
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This is the last thing Kris expected to stop the souls' march of violence.
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Marle Clef de Nuit puts the DELTARUNE six feet under! by JulienDesClefs
Fandoms: Deltarune (Video Game)
28 Jul 2025
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Marle Clef de Nuit, the evil goddess of the Dungeons and Dragons world who goes by the nickname "Superfinal Cheater", has her curiosity caught on a universe called "Deltarune". This universe is familiar to her as she attacked one similar to this one: the UnderTale universe.
Her eye has been drawn onto the Deltarune universe because its protagonist manipulated one of their friends to use ice magic in order to freeze the enemies solid in a futuristic city and killing all enemies in a videogame in order to "become strong".
The evil the protagonist used there made the goddess want to attack this world. She seems quite well informed on what's going on.
She arrives in the Deltarune universe while the protagonist and their party explore a Dark World the Church... Knowing the Prophecy, she will try to use it ton conquer this familiar and yet unknown universe for her.
How will she do to attack the Detlarune universe?
Why does she want to take it over?
Will her evil project be successful?
Discover it in "Marle Clef de Nuit sends the DELTARUNE six feet under!"!