1 - 20 of 64,562 Works in Undertale (Video Game)
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I’m kinda inspired to write a fic like the sans aus but the different frisks/Charas/MCs living together 💀 (just all platonic or found family)
Maybe a Textfic-
I’m making this before hand to remind myself- Language:
- English
- Words:
- 42
- Chapters:
- 1/?
- Hits:
- 0
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Summary
A bittybones breeding facility that specializes in parthenogenesis. It takes bitties otherwise lined up for being put down, and receives one of the rarer kinds... it's a nightmare
the focus in here is on big bellies. do not expect real classical sex from this. they do not have genitalia.
Series
- Part 1 of Undertale Puffs
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Deltarune Yellow: The Willing Puppet by DrBanana24
Fandoms: Undertale (Video Game), Deltarune (Video Game)
08 Jul 2026
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Deltarune's version of Undertale Yellow.
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Just a reincarnation story, there is no twist or anything of the sorts, just survival.
Alan, we are so fucked.
This is another work of mine, the other one called "Being a weapon is not so bad" is under renovations :D
Hope you like this one, and the others that i may post in the future! -
This Fanfiction Killed My Family by FizzyPopYippee
Fandoms: Alexander Hamilton - Ron Chernow, How the Grinch Stole Christmas! - Dr. Seuss, How the Grinch Stole Christmas (2000), The Grinch (2018), Undertale (Video Game), Deltarune (Video Game), Zootopia (Disney Movies), Harry Potter - J. K. Rowling, Marvel, Marvel Cinematic Universe, X-Men - All Media Types, Fast Food (1985), Shrek (Movies), My Little Pony, Star Trek, Multi-Fandom, Transformers - All Media Types, Transformers: Prime, Yaoi - Fandom, im scared - Fandom, OH MY GOD HELP ME - Fandom, IT BURNS - Fandom, IT BURNS OH GOD, IT BURNS GOD PLEASE, what did i make - Fandom, FOR THE LOVE OF GOD PLEASE KILL ME, #love - Fandom, #yass - Fandom, #get it queen, #on that, #aligned with that, #yassssssssssssssssssss, girlboss - Fandom, TRENCH FOOT IS THE SHIP NAME LMFO, trench foot - Fandom, KILLED MY FAMILY, fa - Fandom, Improper use of 7/11 bathroom, forsaken by god, Jjk - Fandom, 呪術廻戦 | Jujutsu Kaisen (Anime & Manga), 呪術廻戦≡ | Jujutsu Kaisen Modulo (Manga), 雀魂麻將 | Mahjong Soul (Video Game), 麻將 | Mahjong (1996), スーパーリアル麻雀 | Super Real Mahjong (Video Games), mahjong - Fandom
09 Jul 2026
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Summary
Me and my friends wrote this in our history class.
This will be your worst read ever.Despite that, there are a few nuggets of good writing, and real lore. you just have to sift through the BS lmao.
It gets slightly better as you go on... and then it gets worse.
Prepare yourself for whatever ride this is.
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Another Part of Me by Holoska_Night
Fandoms: Deltarune (Video Game), Undertale (Video Game)
08 Jul 2026
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"When you fight and gain enough EXP, your LV increases. What does LV stand for? LOVE, of course! Didn't your heart skip a beat when you defeated me? Mine did! It's full of doki's!"
Then, after a pause,
"Oh... right. LOVE has another meaning. Level of Violence. The more you hurt others, the easier it becomes to separate yourself from your SOUL."
She laughs.
"Bodies and SOULs aren't supposed to be apart. You taught me that."
Then she casually asks (forces) Kris on a date.
[Kris and Pink go on a "real date" before the end of Chapter 5. This is also a novelization of the end of Chapter 5 itself!]
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Too Real to be a Nightmare, Too Fake to be Nothing More Than a Passing Figment by Anonymous
Fandoms: Undertale (Video Game)
08 Jul 2026
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Summary
In one alternate version of the Undertale Multiverse, someone wakes up in the body of a Corrupted Nightmare from an alternate and canon non-compliant Dreamtale.
How will this poor soul, lacking is detailed knowledge of Undertale AUs due to not being in the fandom for years, survive and interact with this strange and canon divergent reality they find themself in?
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Crossovertale - An Undertale AU Crossover by Samgamer901
Fandoms: Undertale (Video Game)
09 Jul 2026
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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:
- 2,138
- Chapters:
- 2/2
- Hits:
- 5
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Summary
Sans has lost count of how many timelines he's watched end.
Every RESET follows the same pattern. Every battle ends the same way.
Until one day, it doesn't.
Frisk remembers nothing. A strange necklace hangs around their neck. And a cloaked stranger has entered the Underground—someone who was never supposed to be there.
For the first time in a long, long time...
The timeline has changed.
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The Forgotten Legacy by TraitofConfusion16
Fandoms: Undertale (Video Game), Among Us (Video Game), Dream SMP, Video Blogging RPF, Just Shapes & Beats (Video Game), Dangan Ronpa Series, Bluey (Cartoon 2018), SMG4 (Web Series), Animator vs. Animation (Short Films - Becker), Sonic the Hedgehog - All Media Types, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
09 Jul 2026
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Reality and Fiction. One that resides in our world and the other that we create. Now, what if I tell you that there’s a universe where two exist in the same world? In a world where both real people and fictional characters live on the same planet, what do you think would happen? Would it be peace, chaos, or something much deeper? Let’s take a look at one of them to see how they live in such a world like this and find out for ourselves!
If you want to adapt this into a comic, animation, or whatever you want, then you can do it without my permission. Just don't forget to credit me as the original creator of the AU.
Series
- Part 1 of The NC Series
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Since I Last Saw the Sun by TSS1
Fandoms: Undertale (Video Game), Deltarune (Video Game)
08 Jul 2026
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Summary
Sans wishes with every bone in his body to go back to the world where monsters were happy and humans were neighbors and he could enjoy the sunlight on a warm summer day.
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So, the general idea of this fanfic is that Chara never commits suicide and because of it they are still alive when the other humans come to the Underground.
They still hate humanity, but nevertheless aren't willing to commit suicide as they don't wish to leave their family behind, even if that selfishness means Monsters remain trapped in the Underground.
Then four years into their era the second of the eight humans arrives to the Underground, the one who arrived didn't trust Monsters and had in fact come to confirm whether the first human was dead, the fact that they weren't may be the only reason some peaceful resolution can be attained one day...unlikely, however.
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Painting without Broomie was so much harder.
Ink hated it, wasn’t this kind of thing their specialty? Why? Whywhywhywhywhywhywhywhywhy- Language:
- English
- Words:
- 425
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 10
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Frisk and Chara have freed the monsters from the Underground, but the cost — paid by humans and monsters alike — has been steep. What blooms after a victory like this is not given; it must be tended. In the wake of their victory, Frisk, Chara, and the Dreemurr family must confront their past and determine what their future will look like as they look to mend the rifts a century of imprisonment and tragedy have created.
Series
- Part 2 of Where the Flowers Grow
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*Sitting around, thinking one day* Hmmm... There aren't many good alphys x undyne x mew mew fics.... and there aren't many good childbirth fics, especially involving them.... hmmmmm...
*lightbulb appears above my head*Big thanks to my wonderful beta readers. This is my longest fic so far, so their help is very much appreciated.
CW for descriptions of labor and childbirth.
Enjoy.
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Killer hasn't been able to feel anything for a long time, why should he turn away from his one chance at feelings returning even if the methods hurt a little?
- Language:
- English
- Words:
- 1,249
- Chapters:
- 1/?
- Kudos:
- 1
- Hits:
- 23
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Summary
Just a whole bunch of incorrect quotes. Tags subjective to change.
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Just a bunch of silly, fluffy one-shots featuring Sans and Papyrus being their best brotherly selves.
Series
- Part 11 of Skeletwins Side Stories
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Cowboy? [Reprise] by Someusername473738
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
08 Jul 2026
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Summary
Clover's life since being brought back has been interesting. He finally found a paternal figure to take care of him, Martlet, and has happily taken up a job as a deputy in the New Wild East under Sheriff Starlo. While he only has a few friends, he is making the best of it. Though lately, Clover has been wondering things about himself and what he knows.
A collection of stories of Clover becoming a cowgirl.
Series
- Part 1 of Unnamed Cocoapowder AU