1 - 20 of 345 Works in Catty Cattenheimer
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A human sophomore transfer student has been accepted into a relatively new and experimental college program that takes him right to the heart of New New Home, moving in to a drastically new college life in a world where the monsters reemerged from the Underground of Mt. Ebott.
It's here in his new settling life, he finds himself accidentally falling for a certain monster professor. And frankly, she might be falling for him too.
WIP Slowburn Romance/Slice of Life fic between Toriel and human OC in Undertale AU (True Pacifist Route)
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Catti studies Kris while they study the occult.
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The Tragedy of DUSTSHIFT by DUSTSHIFT
Fandoms: Undertale (Video Game), Storyshift (Undertale AU), Dustshift (Storyshift Take)
30 Nov 2025
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A stylised, tragic take on a Storyshift Genocide Route featuring a hostile Monster population, witness as a formerly carefree Chara's hand is forced when her new, somewhat ascetic life is cut painfully short by a destructive and evil force no modicum of mercy could possibly quell.
Series
- Part 1 of DUSTSHIFT - The Works
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Burgerpants is only 19, but his life is already over. He works a dead end job as the cashier in a fancy hotel run by his intimidatingly-hot robot boss, who constantly berates and insults him. His only chance at friends is the weird kid that sometimes visits his stand (not bad company actually, but how much of a loser do you have to be when your only friend is eight years old and doesn't even talk back to you?) His love life is an active disaster. The one time he tried love, he was shoved in the dirt. And that solidified one thing: Pretty people can't be trusted. But when a brighteyed, cheerful vender from across town comes to visit HIS shop, everything changes. Now BP has to balance his job with his relationship, but it's not as easy as it sounds. Between his hot boss and his own issues, can Burgerpants actually keep his life afloat, or will it all come crumbling down?
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Asriel wrote emails to his past lover. Does it help? He is not really sure.
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Susie and Noelle are interrupted on their Festival date when they stumble upon a Dark World in Asgore's flower shop, Kris and Catti follow them inside. Though their adventure starts out innocent, sinister truths about the world and its history come to light.
As Alvin picks up where his father left off, the Fun Gang ventures into the world of darker than darker than dark. A grand conspiracy unravels, and Susie's hope shines bright into a new future.
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Elaren, a 16-year-old fox boy moves into Hometown one week before the events of Chapter 1. Having lived in a large city until then, Elaren has to adapt to his new life, meet new friends, and maybe even discover the secrets of the small town.
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A year before her disappearance, sixteen year old Dess Holiday has started a band with her best friend Asriel and his ex Catty. But the carefree teenager is pulled into a world of horror as she realises her younger sister is the target of something monstrous. Simple games of pretend spiral into horror, and she fights to prevent a future that unfortunately for her, is inevitable.
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This the story of Kingdomtale, an au I created that's essentially Undertale if it took place in the medieval century. It's not historically accurate but it's my take on this popular concept. I have already posted a series for this au but have grown dissatisfied with it. I know I can write something better. This is the new and improved Kingdomtale, and it's going to come back even stronger and better than before. My hope is that this story can feel nostalgic in a way, like you are experiencing Undertale all over again for the first time.
Here is just a quick snippet of the plot: The year is 15XX, and another human has fallen down Mount Ebott. This human is no more than a child, having woken up in a bed of golden flowers. How did they get there? They'll soon discover a world of monsters, magic, and much more. Can one human child bring peace between two different races that have been forced to share one Kingdom? Well, you'll just have to read to see if the story is still as you remember it.
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The Doctor's Descent by Feanyx1
Fandoms: Undertale (Video Game), Doctor Who (2005), Deltarune (Video Game), Doctor Who
22 Nov 2025
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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.
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(Crossposted from Tumblr, check out the blog here: https://www.tumblr.com/blog/stdoe-on-the-school-bus )
The Phantasm Cinematic is a 3-part anthology fancomic following Kris, Susie, and "Nicholas" Holiday, Featuring references to classic horror films.
A prologue to a future main fic, St. Doe On The School Bus.---
Nicholas Holiday goes to a school assembly, visits a friend, and has some very complicated thoughts about his Identity.
He has his whole life figured out for him, picked out lovingly by his parents, but nothing seems right to him...Series
- Part 1 of Saint Doe On The School Bus
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Asriel had been quiet for a while. Airing everyone he knew, the person closest to him, December Holiday, got suspicious what he was up to. Needless to say, when she went over and saw him sitting in silence in the dark, that rung a few alarm bells.
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The Ghost Souls Before Spider Halloween Mania by LonelyFanboy48
Fandoms: Undertale (Video Game)
12 Nov 2025
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Frisk and their monster groups are preparing for their first ever Halloween. However one red ghost from The Underground took over the holiday, of what Halloween actually is. But they aren't the only ghost with ghosts of Yellow, Green, Blue, Purple, Orange and Cyan, meet Frisk's groups to help them through the horror mania of Halloween itself.
Muffet herself, refuses to get anything between her and her spiders but with the red ghost in control, her life and pride is in jeopardy after living out of The Underground. But Frisk will protect her and her spiders even if it means of putting themself in harms way. While giving her the Halloween she and their friends actually deserves.
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Axetale preservation and short stories to keep this universe alive if anyone has any requests please leave prompts. Most of these are concepts made by myself, but other Au’s besides the ones listed above in the tags will be used.
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YOU WISH TO ALTER FATE
STRINGS MAY BE PULLED, BUT SOME WILL STILL FALL
REGARDLESS
THIS NEXT EXPERIMENT SEEMS TO BE INTERESTING.
VERY
VERY
INTERESTING
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Mettaton. In the Underground, he's a household name! I mean, you'd have to be living under a rock to not know who he is. I mean, no other monsters have even dared to try being a celebrity. Everyone loves Mettaton (even Mettaton himself is his own fan). So why on earth is Mettaton laying on his bed angrily screaming into him pillow?
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You were going on a walk, its supposed to be good for you or something. Suddenly you get pulled into a party you knew nothing about with people you know nothing about. You were just minding your business, so why does everyone now think you're dating your skeletal neighbor?
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⋆.˚✮🎧✮˚.⋆
𝘐 𝘴𝘦𝘦 𝘴𝘵𝘢𝘳𝘴𝘞𝘩𝘦𝘯 𝘐'𝘮 𝘸𝘪𝘵𝘩 𝘺𝘰𝘶
𝘈𝘯𝘥 𝘵𝘩𝘪𝘴 𝘭𝘰𝘷𝘦 𝘪𝘴 𝘵𝘩𝘦 𝘰𝘯𝘦
𝘐 𝘸𝘢𝘯𝘵 𝘵𝘰 𝘧𝘢𝘭𝘭 𝘪𝘯𝘵𝘰.
⋆.˚✮🎧✮˚.⋆- Michael Barrow & The Tourists, ysabelleA fanfic of two emotionally confused lovesick idiots whose biggest opps are proper communication and their own self-esteem
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One day a human falls down into the Underground. Unbeknownst to everybody however, they start hunting down every single monster in the Underground. Everyone is trying to do their best.
Let's explore their perspective.
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He's loved her practically his whole life, and he never stopped loving her when she disappeared from it.
Asriel could never fall in love again, but his life would keep marching to the beat of time whether or not his heart and mind were still stuck in the past.
A slice of life Dessriel fic- starting from their meeting for the first time in Kindergarten, from pre-canon to post-canon.
Series
- Part 2 of Life in Home Town