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A Future Without Them by Baddrummer
Fandoms: Deltarune (Video Game), Undertale (Video Game)
11 Oct 2025
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Years pass. People grow. The world moves on without you. The Angel grew content with that for a while. It still hurt whenever they thought of the world that had long banished them, but something new pulled them out of the depths. Now, the Angel walks amongst friends who swear that they will not be banished. Kris, Susie, and Ralsei mean everything to them. Maybe this time, their banishment doesn't have to be as set in stone as they thought.
The Roaring comes. The light falters. Everyone falls.
A desperate connection is established in an attempt to save what remains of the Angel. If they fall, all hope will be lost. The world that banished the Angel long ago has forgotten them, but they have not forgotten it. This connection will have to be enough. Even if the rules have changed irrevocably, the Angel's one goal remains the same: Find them.
Series
- Part 2 of Clawing Toward What Hope Remains
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Distant Souls by Kaboom91
Fandoms: Undertale Yellow, Undertale (Video Game), Deltarune (Video Game), OneShot (Video Game), Heartbound (Video Game), Ib (Video Game)
11 Oct 2025
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The soul is an important part of a persons identity, the accumulation of a person's being. But different worlds play by different rules, so when a force trapped between worlds starts tampering with those worlds, things start to come apart. It'll take the help of a Fun Gang, a Savior, a young girl, a boy looking for his dog, a small cowboy seeking justice, and an incredibly determined human to save all their worlds from the ever looming darkness.
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UDY on the Surface by CommanderBullet
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game)
11 Oct 2025
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It's been a few years since Monsters returned to the Surface and lots of things have changed... Accompany your favorite characters from Undertale, Undertale Yellow and Deltarune as they try to manage their everyday responsibilities and go through a few wacky adventures while at it in this slice-of-life crossover AU.
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Killer piensa que cada una de las decisiones que ha tomado hasta ahora han sido las incorrectas, pero aún así acepta el trato con el guardián de Au's, quién tiene la teoría de que el asesino puede redimirse si está dispuesto a cambiar.
Le entrega viales con la esperanza de que sentir algo nuevo lo motive a superarse y le regala un diario para que escriba en él.La historia está narrada en base a lo que él escribe ahí con excepción de uno que otro capítulo extra desde la perspectiva de otros personajes...
Intento apegarme lo mejor que puedo al canon de cada personaje...sus personalidades, ideales e historia, pero obviamente, por mera ficción, hay cosas que salen de eso.
- Language:
- Español
- Words:
- 4,098
- Chapters:
- 2/?
- Hits:
- 7
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(Corrupted) Nightmare accidentally sends his boyfri- Killer to Dreamtale. Chaos ensues.
+Little purple grape (Passive NM) -
Balan’s World of Wonder by Imagigamegirl
Fandoms: Balan Wonderworld (Video Game), Undertale (Video Game)
11 Oct 2025
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Balan’s Wonderworld can appear out of nowhere. Two sisters just happen to be the ones taking the stage next. But before they can overcome their own troubles, they have to help the other residents overcome their own troubles and repair their hearts. Join Melody and Deana on this whacky, musical adventure through Wonderworld as they also teach Balan that perhaps opposites can make one strong when together. Credit to Yuji Naka and Sochi Kawasaki for the original novel and Balan Wonderworld itself. Credit also to any music artists stated amongst music numbers. I mainly own Melody and Deana.
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Little bonuses chapters to CAVE DRACONTEM !
They will most likely be very very short but I couldn't get enough of the dragon ( officially named Lord Noot ) <3
Series
- Part 2 of Draz AU
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You should be dead. Everyone else in this god forsaken city died as soon as the barrier came down and these creatures, these MONSTERS, invaded Ebott City. You got lucky, or maybe not.
You had the bloodline of a mage. Which meant you could create barriers. In a moment of panic you had created a barrier in your apartment, locking you and your neighbor inside, and the monsters out.
But now the clock was ticking and you had a group of skeletons sniffing around your apartment, telling you that they couldn’t wait to drag you back to their den.
They meant as food…. r-right?
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The Games We Play by FoundUser, Primordial_Rebel_Jester
Fandoms: Deltarune (Video Game), Undertale (Video Game)
11 Oct 2025
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Summary
There are infinite opportunities in this world. Infinite opportunities for dreams. Infinite opportunities for hopes. Infinite opportunities for regrets... for loss.
There are some memories you would rather just forget...
The old royal scientist knew that better than anyone.
BRIGHT, BRIGHTER, YET BRIGHTER. SO YOU STILL SHINE ON, EVEN AFTER EVERYTHING YOU ENDURED. EVEN THROUGH THE COLDEST NIGHT.
But a story doesn't have to end the same way.
EXCELLENT. TRULY, EXCELLENT. LET US BEGIN THE CREATION OF OUR NEW FUTURE.
Sometimes... a game can have a secret ending.
(A Deltarune novelization that takes some unexpected turns from canon. Based on some theories, and a little bit of imagination, even the unknown can make itself known.)
(Custom Art and beta'd by Primordial_Rebel_Jester. Story by FoundUser.)
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a collection of one shots, all centered around sans and his alternate versions, for kinktober 2025. enjoy!
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You and Frisk decide to take a day off to have a picnic in Mt. Ebott, something to take your mind off work while waiting for winter.
So why, why are you now on the police office?
Why are you putting missing posters all around the city?
Why did you take them there? Where are they? Why did your worst nightmare become something real?Where are they?
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I don't have a summary i just pulled this out of my ass but if you like a slow burn with a Lot of Words and Feelings™ and Sans pleaseee give it a try. -
𝐑𝐄𝐒𝐄𝐓 𝐌𝐄 𝐆𝐄𝐍𝐓𝐋𝐘 ── BAD!SANSES X READER by HauntStrike
Fandoms: Undertale (Video Game), Undertale!AUs, Underverse - Fandom
11 Oct 2025
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⠀⠀⠀⠀⠀
— "Nothing in your world is real. Not even 𝘆𝗼𝘂. But something inside you remembers..."⠀⠀⠀⠀⠀⠀⠀⤹✎⤸⠀.⠀⠀.⠀⠀. ⠀⠀.⠀⠀.⠀⠀.
ㅤ⠀ㅤ⠀𝅘𝅥₍ ☠︎ ₎ ㅤ𝅄ㅤ⊰✝︎⊱ ㅤ𝐈𝐍 𝐖𝐇𝐈𝐂𝐇 ─── What does the fate of the Multiverse have to do with you? Well, my dear __________, you live in a world that feels ordinary: familiar streets, a life that seems entirely of your own. But everything around you is a construct: carefully designed by the creators, a reality shaped to contain the 𝗖𝗢𝗗𝗘𝗫 within you. For years, you believed this was all there was.. Well, until a visitor arrives, and suddenly, the life you thought was yours begins to feel… 𝙛𝙧𝙖𝙜𝙞𝙡𝙚. You realize you are no longer just living, and everything you once know was a lie.. Now, the fate of the narrative hinges on what you do next: and with a bunch of chaotic skeletons. It seems that leaving this place might be the only way to survive this madness — if the creators will even let you...
⠀⠀⠀⠀⠀⠀⠀⤹✎⤸⠀.⠀⠀.⠀⠀. ⠀⠀.⠀⠀.⠀⠀.
╰>⠀⠀🉇; 𑁍 ˒ 𝐔𝐍𝐅𝐈𝐍𝐈𝐒𝐇𝐄𝐃 𝐁𝐎𝐎𝐊 - 01/??
- Language:
- English
- Words:
- 373
- Chapters:
- 1/?
- Comments:
- 2
- Hits:
- 4
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So, I heard you like skeletons...
Reader insert prompt fills for @skeletonh0e's sans-centric Kinktober challenge on tumblr
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Never let Sans pick a costume out for your kid by carrionne
Fandoms: Undertale (Video Game)
11 Oct 2025
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Sans thinks he dressed Frisk up pretty well for Halloween. Aren't cardboard boxes all the rage these days? Papyrus disagrees.
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mango bardzo kocha hiiro amagi ale on nagle umiera a zycie toczy sie dalej.
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Undyne had been getting increase of dreams, all relating to a child in a blue and purple sweater. Sometimes they would be friends, in others... well...
When Sans notices, he figures it's about time to let her in on a secret that only few know about.
Welcome to the Awareness Club, Fishstick!
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A undertale AU, Asgore and Toriel have swapped places and the Ruins are like the wild west and many changes from the Orignal timeline!
- Language:
- English
- Words:
- 1,733
- Chapters:
- 2/?
- Hits:
- 5
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Undertale Adventures! by FizzySunpop
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game)
11 Oct 2025
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Summary
Republished for Undertale's anniversary, and will (hopefully) be continued past the two chapters I finished before.
Old description:
"Idrk how to exactly describe this story outside of saying something like 'Undertale/Deltarune Cinematic Universe for both official and fanmade content'. Like I really tried to make an in depth description but I. Cannot.
First Chapter is rather short but I didn't feel like it should have been labeled as a Prologue."
The description is still true, I still do not have any proper way of describing this story in my mind. The first arc, obviously, is an adaptation of Undertale with content from several mods, fangames, or similar AUs. After that, I will mainly focus on adapting Prequel-based content such as Handplates or Undertale Yellow before going into Sequel-based content, whether that be adapting Undertale sequels or adapting something that isn't an Undertale sequel but the arc based on it is still after the Undertale arc (like, say, an Overtime arc- or- or Deltarune, I could've just said Deltarune....)Series
- Language:
- English
- Words:
- 8,991
- Chapters:
- 3/?
- Hits:
- 38
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Yuri’s Yuri and Hopkin’s Untimely Demise at The Hands of a Dull Kitchen Knife by Shadowalis
Fandoms: Limbus Company (Video Game), Lobotomy Corporation (Video Game), Library of Ruina (Video Game)
12 Oct 2025
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Due to a mysterious benefactor, Yuri has been granted new life. With a sore body and a shaky mind, she and Hopkins have a lovely chat in a back alley diner. Little did Yuri know, someone else, possibly followed by a bus full of lunatics, had personally tracked down Hopkins to this very spot.
- Language:
- English
- Words:
- 1,345
- Chapters:
- 1/?
- Kudos:
- 3
- Hits:
- 44
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Working at a bar wasn’t all that bad. Sure, sketchy people would show up, and sure, there have been some fights, but besides that, it wasn’t that hard for her to focus on her job. Of course, the only person who made Muffet’s shift bearable was Fell, who had become a regular.
This is an image roleplay format & podfic loosely inspired by Sooner or Later You're Gonna be Mine by Staringback ( A03).
So if you are a Frans shipper, I'm sorry, but adult Frisk will not be in roleplay. Muffet will be taking her place as Sans' love interest... DunkinDonut.
Please enjoy.
- Language:
- English
- Words:
- 0
- Chapters:
- 2/?
- Hits:
- 207