1 - 20 of 6,751 Works in Flowey (Undertale)
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Aria finds out that her boyfriend had been cheating on her. She runs away ending up on the mountain and sees a small child nearing their way over the edge of the abyss. She quickly tries to stop them only to fall and the two end up in the Underground.
A Papyrus story.
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Gaster's group chat he made for his subjects by Gabe_reviews0408
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game), Deltarune (Video Game)
19 Sep 2025
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gaster gives Undertale characters from the three games multiple group chats so they could talk and learn about each other.
nothing ever goes wrong.
inspired by the many groups chat fan fictions
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A controller's dismissal by Sirsonan
Fandoms: Undertale Yellow (Master Sword Video Game), Undertale (Video Game)
19 Sep 2025
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Flowey wasn't going to RESET Clover this time. Even he has his limits before his patience runs thin. Although time RESETs anyways. Flowey figures out who used HIS powers and scares them into leaving. This run faces the consequences of that action.
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The Flat World that lies beyond The Barrier by YellowJustice
Fandoms: Undertale Yellow (Master Sword Video Game), Undertale (Video Game), Re:ゼロから始める異世界生活 | Re:Zero Starting Life in Another World (Anime)
19 Sep 2025
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After offering his soul to the Underground, Ceroba, Starlo and Marlet decide that letting a 12 year old kill himself isn't a good idea.
Clover spends the next 4 years having a ton of adventures: saving a daughter with the help of his SOUL, spending time with her, training his SOUL magic, even landing a job!
He even got Asgore to let him live (at least) until the 7th human falls to the Underground!
What can go wrong for Clover?Well, the 7th human falls into the Underground...
And they left a pretty long trail of dust behind.With the supposed death of his lover, Clover get's enough Determination to overrwrite Frisk's SAVE.
So when the deed is done, Clover is truly alone now.
With no one left to stay for, Clover decides to complete his mission and leave the Underground with the 5 SOULS.* (A strange light fills the room.)
* (Twilight is shining through the barrier.)
* (It seems that your journey is finally over.)
* (Your sense of JUSTICE was never this strong.)
Clover finally leaves the Underground, and when he opens his eyes...
"Well, Ah' can't say that Ah' expected that..."
He get's summoned to Lugunica
Series
- Part 1 of UTY x Re:Zero
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Summary
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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Being stuck in a loveless relationship always sucks. Being stuck in a loveless relationship with an absuive psychopath is even worse.
But who knew that the long awaited silver lining would finally arrive in the form of a small group of monsters, especially that one with the blue hoodie.
Now, if only you didn't carry some secrets of your own, that would threaten that newfound peace.Series
- Part 1 of Despite everything, it's still an AU
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The Seven (Plus Chara) have done it; they've ended the imprisonment of all monsters. With Frisk as their ambassador (and Papyrus as mascot), things are sure looking up!
But in the background, things are at play, events that could threaten everyone's happy ending.
After all, just because one story ends it does not mean the Tale has.
Series
- Part 2 of Hall of the Seven
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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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Monitor Mayhem by Klovars
Fandoms: Hazbin Hotel (Cartoon), SpongeBob SquarePants (Cartoon), Deltarune (Video Game), Marvel Cinematic Universe, Undertale (Video Game)
19 Sep 2025
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Summary
A bunch of TV-heads make out for no reason other than the fact they are fictional characters under the control of the author. Justification is not required.
- Language:
- English
- Words:
- 424
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 10
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Undertale Yellow: Soul Bond (WIP) by zenith32
Fandoms: Undertale Yellow (Master Sword Video Game)
19 Sep 2025
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Summary
A seemingly average security guard, Curtis, plays a fan game he's been told about, only to beat the game and suddenly find himself in a very real caretaker role to one of the game's main protagonists: Martlet. Meanwhile, a mysterious character by the name of Flowey seems to have an agenda involving these two in Curtis' world, but when all that Flowey seems to care about is whether or not Martlet remains happy, can he really be up to no good?
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You’re a scientist! Yes you! And you’re going on a trip through the multiverse! Dw, you did it on purpose
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Chronicles Aventure of Friend Gang by Mirasoulazer
Fandoms: Undertale (Video Game), Deltarune (Video Game)
19 Sep 2025
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Summary
Aeron, Aurorena, Isoria, and Mara are four humans who stumble upon each other, questioning who they are and what they really want in this multiverse.
After getting to know each other better, they decide to delve into the multiverse to discover its secrets, both mysterious and dark.
But their friendship doesn't really exist, and a simple quarrel could forever shatter their true friendship.
Following their adventures, they try to strengthen their friendship, while the obstacles and horrors of the multiverse continue to reveal the true darkness of their souls.
Series
- Language:
- English
- Words:
- 454
- Chapters:
- 1/?
- Hits:
- 2
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Summary
It's been months since Frisk and Flowey's battle. The former human has fully settled into their new life in the Underground. Things are changing, but they're okay with that. But when they find out that humanity has survived, Frisk must overcome their own struggles and trauma to bring about peace. Not easy when they've suffered so much. And Flowey is still out there, watching and planning.
Series
- Part 2 of Divine Soul
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After freeing the monsters from the Underground and ensuring their rights and safety, Frisk now has one last person to save.
The spirit that has been with them since their fall.
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Undertale Yellow: Devoted Justice by Valerian120
Fandoms: Undertale Yellow (Master Sword Video Game), Undertale (Video Game)
19 Sep 2025
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Summary
As Clover jumps into the underground he has one thing on his mind. Find the missing kids. Though his plan goes awry when he wakes up next to a brown fox wearing a kimono.
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—a message to flowey, delivered via echo flower.
- Language:
- English
- Words:
- 1,102
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 25
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Spending Spring Break Underground by 4Trixs_Animations3
Fandoms: Undertale (Video Game), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
18 Sep 2025
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Summary
Once upon a time many centuries ago, the world was ruled by two species: Humans and Monsters. Both of these creatures thrived together using their special talents to help one another. That was until the humans declared war on the monsters out of the blue. This led to the monsters to be banished beneath a mountain.
But rest well when I say the humans suffered their karma. Without monsters they soon lost their magic, along with their way of life. They developed their own powers called quirks, with this power came the raise of heroes and villains. Quirks were quick to spread until only 20% lacked them.
It wasn’t long before magic and monsters were reduced to legend. This led many to climb the mountain to see if the legends were true, only to never return. This was because of the heartbroken monster king who put a bounty on every human who fell.
When the last human fell, the monsters were ecstatic. Finally they’ll be free to wander the surface and feel the sun and the rain again! But unbeknownst to them, they have become even more trapped than they had before. With each reset the monsters were forced to live the same day over and over without anyone knowing ... .Well, almost everyone.
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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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Summary
“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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Maybe one day (NEW VER.) by me_paina for WrittenKinzy18, Clichely
Fandoms: Undertale (Video Game)
18 Sep 2025
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Summary
(Note: Reading ClicheAly's Murder to Dust and An Alternate Turn of Events and WrittenKinzy18's Winged AU series will 100% make this fic more enjoyable, but you don't have too. This could be read as a standalone.)
This is only going to get worse before it gets better, and well... Lets pray he won't find a way here because...
No one would survive his massacre.
or
ATE Dust accidentally got transported to the winged universe.
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Just a tip to you all, this story will have violence and it may disturb some audiences.If you haven't read ClicheAly's writing, you won't know how gruesome some parts are and you won't know anything about this Dust or his AU, so I highly suggest that you read Murder to Dust and An Alternate Turn of Events before you read mine.
It is also good to know that this is taking place in the Winged Multiverse, so I suggest you read WrittenKinzy18 stories and series.
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4/?(ATE multiverse belongs to ClicheAly)
(Winged multiverse belongs to WrittenKinzy18)
(Drawing by me (Me Paina))
(Undertale by toby fox)Series
- Part 2 of CROSSOVER BETWEEN ATE AND WINGED AU