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This is an Undertale AU I am making with a pinch of Storyshift and mostly inspired by Horrortale and some others. Generally the premise is Chara being the first human to fall into the Underground since the monsters were trapped there. BUT it has only been a few years since the war, so the monsters are all like GRRR and angry about humans right now, so the world is, as the experts say "kill or be killed!" Am I going to finish this? Fuck if I know, man.
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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)
24 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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Bonkers Bloody Bachelorette (With Boyfriends) by ThaRealPawthor
Fandoms: Boyfriends - refrainbow (Webcomic), Five Nights at Freddy's, Undertale (Video Game), The Amazing Digital Circus (Web Series), Creepypasta - Fandom
24 Jul 2026
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A strange group of characters reminisces after the events of William's bachelorette party.
A fic in the IWAWAD universe born from boredom. Set right before Baldilliam's original marriage. Can be read as a solo fic!!!
-Paw
Series
- Part 2 of IWAWAD Universe
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==Sweammare== The Last Dance Before the End of the World by Anonymous
Fandoms: Undertale (Video Game), Undertale, dreamswap - Fandom
24 Jul 2026
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DS!Nightmare = Test Subject N-714.
DS!Dream = Dr. Dream. -
31 days of ruining Overhaul’s day by Rocboi135
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Super Mario & Related Fandoms, Super Mario Bros. (Video Games), 呪術廻戦 | Jujutsu Kaisen (Anime & Manga), 呪術廻戦≡ | Jujutsu Kaisen Modulo (Manga), Pocket Monsters | Pokemon - All Media Types, Dog Man (Comics), Dragon Ball, Skylanders (Video Games), Shovel Knight, Sonic the Hedgehog - All Media Types, Rockman | Mega Man - All Media Types, Undertale (Video Game), The Owl House (Cartoon), Ben 10 Series, Super Smash Brothers, Steven Universe (Cartoon), Deltarune (Video Game), Kirby (Video Games), 妖怪ウォッチ | Yo-Kai Watch
24 Jul 2026
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Hi folks! This is 31 days of ruining overhaul’s day! These are bunch of fic ideas that get updated everyday until the end of the month and you can use any of these idea to write your own fics so have fun and enjoys
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Ideas for fan fiction by Ayajan_b
Fandoms: Undertale (Video Game), Deltarune (Video Game)
24 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) -
a way out (kustard) by Anarkyste
Fandoms: Undertale (Video Game), Underfell - Fandom, Undertale AUs - Fandom
24 Jul 2026
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It feels weird, it truly feels weird to wake up in your house, your town, but not your world.
something's off.(don't mind my mistakes english is not my first language)
(also the story will mainly follow uf sans/ red's point of view)
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Orphans with Heavy Burdens by Eclipse_rose, Rokkr_Ragnarok
Fandoms: Undertale (Video Game), Warframe
24 Jul 2026
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What happens when the soul persists? When a guardian is left adrift without a body or a soul, merely existing?
Well beings beyond their realm take interest.Pulled into the Void, Nightmare finds it in himself to try to take back his life. Will he be able to with the power of a Tenno welling within him?
And how long is too long to reunite with family?I’m waiting for word from the hospital for important shiz and Warframe is my only saving grace right now keeping me sane. And my mind always goes back to undertale when things are chaotic so ah… this idea spawned?
Nightmare was caught up in millenia of torment from his perspective until a trapped Operator (Ayatan) found him. Pulling him out of his endless torment to form a pact.
I whole heartedly blame you Eclipse for this first chapter. That Octavia quote was too golden lol -
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"모든 이야기는 이제 너한테 맡길게."
프리스크는 세상을 구했지만, 아직 할 일이 남았다. 아스리엘은 여전히 어둠 속에서 헤매어야 한다. 아스리엘을 구할 수만 있다면, 프리스크는 시간도 깨트려버릴 수 있다. 하지만 그가 시간을 되돌릴 때마다, 모든 해피 엔딩을 원상태로 되돌릴 때마다. 샌즈는 지하 세계의 가장 비밀스러운 곳에서 애써 멀리하려 했던 자신의 과거와 마주칠 수밖에 없다. 그들은 힘을 합쳐 이 비극의 굴레를 벗어나 마지막 영혼을 되찾고, 이 세상에 미래를 돌려주어야 한다.
친구들의 손을 놓지 마라. 망가져 버린 이를 찾아라. 속삭이는 그림자를 조심하라. 친절하라. 두려워 마라. 그리고 그 무엇보다도, 의지를 가져라.
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A Crystallized Amethyst by KTamao205
Fandoms: Undertale (Video Game), Harry Potter - J. K. Rowling
24 Jul 2026
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Crystallize [kris-tl-ahyz] refers to the process where a liquid or gas transforms into a rigid, structured crystal lattice.
Or... I look at my other two Avallon and thought 'Yeah I could do more angst with these bois.'
Series
- Part 3 of Arcalith
- Part 3 of MultiTaleVerse
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They seemed fine yesterday.... by TheOuroborosWakes
Fandoms: Deltarune (Video Game), Undertale (Video Game)
24 Jul 2026
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Everything is too much. Kris isn't in charge of their own body anymore. Their friends aren't really their friends. The girl they love doesn't love them. The only place they can have fun isn't going to be theirs anymore. Everything is going wrong and this is all their fault. They want it to end.
Series
- Part 1 of More Than 3 Heroes.
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Interference by EpicDarkner_Catbull
Fandoms: Deltarune (Video Game), Undertale (Video Game)
24 Jul 2026
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Error and Ink travel to Deltarune out of curiosity, but it's kinda weird.
(This is my first work with Undertale AUs, please dm if anything is wrong lol)
- Language:
- English
- Words:
- 1,166
- Chapters:
- 1/?
- Kudos:
- 3
- Hits:
- 31
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A world is torn in half, blood spilt and dust spread. Y/n escapes her toxic background and travels through harsh terrains and blistering cold temperatures in hopes of finding the Monsters to help fight for their independence. Finally, it seems all her work has paid off! Unfortunately for her, she doesn't quite get the warm welcoming she was hoping for. Will the monsters accept her as one of them? Will the world ever know peace again? Is it possible for something as beautiful as love to blossom in something as destructive as war, and will Sans ever pick up his dirty sock? Y/n is uncertain but knows if she stays BRAVE in the face of danger, she can do anything.
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心中默念倒计时。
两位见证者相伴看着世界走向终结，书信人写上故事的尾声，听不见的声音，刺耳得令人头脑发昏。
他们看着世界宛如一场巨大的烟花秀。宏伟瑰丽，震撼人心且昙花一现，最后趋于无尽的虚无，沉沦于此就会窥见死亡的真相。死的真快。
他们为最熟悉的彼此，为这场宏大的死亡盛宴干杯
真希望他们下次不要再当Error和Ink了。
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( Cover art drawn by Hollowfox on AO3 )
Chapter three has been updated!
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(This fic is written in First Person)Error is done. Fate has been in control of his life for way too long. He doesn't have the ability to take it anymore. So he takes a risk. A risk that eventually makes Error terrified of what's to come. More for the ones he calls family than for himself.
Ink is just tired. Tired of waking up to see multiple universes. When he realises that he's not the only one under fate's control, Ink does the best thing he could think of. He helps and well... That leads to more problems for both of them than he could have ever imagined.
Fate will never go easy on them again.
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FGOD Error and Ink are taken by Fate to teach them what happens when the rules are broken. The multiverse Sanses must rescue them.
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(FGOD error belongs to harrish6)Series
- Part 1 of E.I.S Multiverse
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Pocky Game With A Skelebro by Unknown_Art
Fandoms: Deltarune (Video Game), Undertale (Video Game)
24 Jul 2026
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Summary
Kris gets Papyrus to play the Pocky game with them, so they can annoy Sans, this somehow both backfires and works out in their favor tremendously.
Series
- Part 3 of The Brother of My Enemy is My Lover
- Language:
- English
- Words:
- 1,030
- Chapters:
- 1/1
- Hits:
- 11
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When your life comes crashing down at a young age, some screws and more are definitely going to come loose and jumbled up. You can't remember what happened. Or, rather; you don't want to.
You couldn't do anything about it, couldn't control it.
And yet, you're burdened nightly. Burdened in your moments most isolated, by a voice that insists upon the notion that you could have done more. That you could have prevented something from happening. That pushing forward is for naught.
No matter how far you go in life, it will burden you unto eternity. That, is what you tell yourself anyways. However, perhaps...
Perhaps that will change. You've opened up a little more, shied away less from visages unfamiliar to you. And now? Maybe now, you can find something that'll pull you out from this dark haze.
Maybe even someone.
...You hope someone will.
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What starts out as a relaxing picnic outing with your friends spirals into disaster as Sans gets kidnapped by a group of strange skeletons. Can you save your friend?
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Papyrus always had a great long-term memory. Though, memories seem to flow back into his mind that he distinctly does not remember experiencing. Will he overcome the issue, or be overwhelmed by it?
TLDR: Papyrus remembers parts of resets which leads to someone using him in hopes of returning to the minds of all.
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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.