1 - 20 of 4,538 Works in Grillby (Undertale)
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A collection of short stories following the prompts of Sans x You Week 2024, hosted by htsan on Tumblr! In this collection, you'll get to join Sans in making fun of airport signs, use a series of pranks to stop a group of evil protestors from getting their way, have his calming words help you drive your way through a thunderstorm, and plenty of other antics. Be sure to visit htsan's Tumblr blog to enjoy others' great content, too!
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Theres a destroyer of AUs and there's a Protector of AUs. One destroys and one protects/creates. But what if there's glitches in the code? Infections of hate or bugs in AUs that the protector doesn't catch before it's too late?
Theres one for that too. He keeps a low profile and makes sure the AUs he fixes forget or reset so whispers of his existence aren't shared. He does prefer his privacy, though sometimes he will invade and visit others..
Follow our dear fixer Gen as he travels and learns things he thought he already knew. Help him make new friends along the way if you'd like.This is just a small collection of stories following a Grillby AU I made a while ago and recently revamped!! This was written a while ago but stayed in the drafts for personal reasons, but I'm just starting to build up the courage to post it!
more tags will obviously be added when I can.- Language:
- English
- Words:
- 1,174
- Chapters:
- 1/?
- Hits:
- 0
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An outlaw stumbles onto a healer's porch, bloodied and wild. How do they fare with kindness reaching back out to them?
Series
- Part 1 of Under the Joshua Trees
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Without History (maybe some things should stay forgotten) by Human_with_no_life
Fandoms: Undertale (Video Game)
23 Sep 2025
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After the barrier breaks and monsters and humans live together on the surface there is still mysteries about the underground to be solved. Most of them will stay forgotten or buried forever.
Until an almost promise Sans made frisk makes him tell a long and complicated story. His story, well not exactly 'his' but as many questions as it answers it raises more. One thing if for sure it will change everyone involved.
- Language:
- English
- Words:
- 1,105
- Chapters:
- 1/?
- Hits:
- 35
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(Human/College AU) Sans’ relationship with his father was…complicated, to say the least. They both loved each other, Sans knew that—hell, his small family would do anything for one another.
But sometimes Gaster just didn’t understand.
Sans was the firstborn, the eldest, the one Papyrus would turn to when Gaster was busy with one thing or another. Which was often. Gaster was a genius; of course he was working 24/7.
Maybe Sans just wanted some time alone to figure himself out, too.
- Language:
- English
- Words:
- 4,443
- Chapters:
- 1/1
- Kudos:
- 4
- Hits:
- 31
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Gather children, listen well, harken to the Under Tale.
A story of a small child, falling into a massive cavern where monsters have made their home. With the help of a certain phantom, the child makes their way through the Underground, making friends & family along the way.
I own absolutely nothing in this. Undertale, along with with characters, setting, etc., belong to its respective owners, who are not me.
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receipts as flowers make for a poor bouquet (but he keeps taking them, so...) by copperCranberry
Fandoms: Undertale (Video Game)
22 Sep 2025
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working at a library is *excellent* for people-watching— the downside here being you have a tender, painfully romantic heart and develop very dramatic and very long-lasting crushes on the patrons.
...patron, singular. it's just the one guy, you see; but you just can't seem to put down the torch you've been carrying for him. it's been *years*— are you going to pursue this or does he have to make the first move?
it's hard to flirt with people at their jobs and it goes both ways.
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Snowdin Adventures with the Skeletwins by Just_AliAnne261
Fandoms: Undertale (Video Game)
22 Sep 2025
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"You want to know what to do here in Snowdin? Grillby's has food, and the library has information... If you're tired, you can take a nap at the inn. It's right next door - my sister owns it.
"And if you're bored, you can sit outside and watch those wacky skeletons do their thing. There's two of them... Brothers, I think. They just showed up one day and... asserted themselves. The town has gotten a lot more interesting since then."
The daily lives of wacky skeleton brothers Sans and Papyrus. Watch and read as they get into all sorts of wacky adventures, cause mayhem, and learn life lessons along the way!
Series
- Part 1 of Skeletwins
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Refraction (Do My Eyes Deceive Me?) by HyperfixiationMoment
Fandoms: Undertale (Video Game)
22 Sep 2025
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In which Dr. W.D. Gaster messes around and finds out. He's trying to do good things! He wants to help people! However, an obstacle puts the final nail in his career's coffin. The stars aren't supposed to feel cold.
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A rewrite of the college fic that I wrote. I really wanted to redo it and make it better because I spent a lot of time building it. I don't know if this counts as my own AU because there's other college AUs and stuff, but this is my take.
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Eight Skeletons Compete for My Attention and None of Them Pay Rent (And Neither does the Ghost) by Itsyaboisunnyd
Fandoms: Undertale (Video Game)
20 Sep 2025
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Living with skeleton monsters was supposed to be temporary. A law, a requirement, a way to smooth over integration. But secrets linger in the walls, a machine that hums at night, skeletons who call themselves cousins with stories that never line up, and a shadow you think you can only see. You keep telling yourself you could not see him. You tell your roommates nothing at all.
But lies don't last forever. -
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He turned off the music. “What is it you are doing here?”
Gaster sighed. Straight to the point as always. It was one of the things that he liked about the bartender. “I think my intention to come to a bar is pretty obvious, Grillby,” he answered.
Or
After a long time of not having contact with Gaster, Grillby finds himself conflicted by the sudden appearance of the skeleton in his restaurant.
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Two souls in the Underground, intertwined by fate and by a prophecy that keeps them apart.
Heads up before you read:
In this fic, Chara is alive and far from a good person. They’re not a mindless killer, but a narcissistic kid. This is not a fluffy Charisk story. Chara and Frisk’s relationship is deeply toxic.Please look at the tags before you continue.
I've been experimenting with third person for a while now, and I've grown to like it a lot more than first person. For those who came from my other fic, which I promised a sequel for, I’ll try my best, but I’m not sure how that will go now that I’ve fallen in love with third person and started a new long fic. Please don’t be angry I will try to finish my other fic as well.
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Santuarytale (Vers. English) by Harmony_of_Endless (RynoxPolux27)
Fandoms: Undertale (Video Game), Multi-Fandom, Assassin's Creed - All Media Types
19 Sep 2025
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Sanctuary
(From lat.) Sanctuarium.1. A fundamental place that offers security, protection, or refuge from danger, persecution, pain, or harmful influences.
2. The central idea is that of a space where one is safe and often finds peace or comfort. Furthermore, it provides asylum and care to those who need it.
3. A sacred place dedicated to a deity, religious object, or venerated figure.
4. A space where one can find calm, serenity, and isolation from the stress, noise, or disturbances of the outside world.Series
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Santuarytale by Harmony_of_Endless (RynoxPolux27)
Fandoms: Undertale (Video Game), Assassin's Creed - All Media Types, Multi-Fandom
19 Sep 2025
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Santuario
(Del lat.) Sanctuarium.1. Un lugar fundamental que ofrece seguridad, protección o refugio contra el peligro, la persecución, el dolor o las influencias dañinas.
2. La idea central es la de un espacio donde se está a salvo y, a menudo, se encuentra paz o consuelo. Además, proporciona asilo y cuidado a aquellos que lo necesitan.
3. Lugar sagrado dedicado a una deidad, objeto religioso o figura venerada.
4. Un espacio donde se puede encontrar calma, serenidad y aislamiento del estrés, el ruido o las perturbaciones del mundo exterior.
Series
- Part 2 of Libercordia
- Part 2 of Senderos fragmentados de Harmony
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Summary
And so the rotted pits stared into the frozen beyond
Distantly remembering being frustrated, proud, angry.
Devastated.
But they were too tired for any of that now.They turned back to the deceptively welcoming house.
Still there, even after everything.
It shouldn't be
A house is only as good as the people in it.ORRRRR
Sans is handling things AWESOME after everyone he loved has kicked the bucket
Yessiree no negative feelings here
Insert Steve Griffin Death Pose- Language:
- English
- Words:
- 1,131
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 41
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Unexpected Hero by LemonCake64
Fandoms: Undertale (Video Game), The Legend of Zelda & Related Fandoms, The Legend of Zelda: Twilight Princess
18 Sep 2025
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“Not so fun being stuck in some loop right? Trying to fight to protect what ya got, not getting a choice in it. If I had the choice I wouldn't remember either.” The words oddly felt comforting. Link let out a slow breath, closing his eyes for a brief moment.
He didn't feel alone for the first time in a long time.
And that?
That was terrifying.
“To be honest, I kinda gave up a while ago. Just sat back and let the chaos go on, felt like nothing I did mattered anymore. Everything would just be reset anyways. Stopped caring what happened, that was until you showed up.” The skeleton’s eyes bore back into the Hylian.
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The Prism And the Ghost by Mirasoulazer (orphan_account)
Fandoms: Undertale (Video Game)
17 Sep 2025
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Aaron and a young boy from a village on the surface, after helping Frisk escape the barrier and freeing all the monsters.
They both shared part of their soul with Asriel so that he would survive and not turn back into Flowey.
But three years have passed, and Chara has decided to possess Aeron instead of Frisk because she felt the raw power emanating from Aeron's prismatic soul.
During the fourth year of the Frisk monster liberation, Asriel and Sans must help Aeron before he completely succumbs to Chara's possession and uncovers this secret, as well as the greatest secret that Aeron has been hiding since he arrived.
This story is heavily inspired by Endertale, but reworked to reflect the origins of Aeron and the ghost character in the other stories.
PART 1 OF 3 OF ORIGIN STORY
Series
- Language:
- English
- Words:
- 8,608
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 17
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Summary
Grillstertember 2025 Prompt 2- Snowed In. But its Pirates.
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Санс взял брата за руку и побежал. Они никогда не вернутся, никогда не будут оглядываться назад. Они могут идти только вперед. Как можно дальше от экспериментов, от лаборатории, от Него.