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A Core Malfunction by Cet0
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
07 Nov 2025
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Summary
The Underground's core is breaking years after freedom was reached, will Frisk, Clover, and Chara be able to fix it in time?
- Language:
- English
- Words:
- 947
- Chapters:
- 1/?
- Kudos:
- 2
- Hits:
- 9
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Summary
Homeless and guarded, Susie reluctantly accepts help from Undyne, Hometown’s tough yet caring police officer. As they share a roof, both begin to uncover trust and hope in unexpected ways.
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Duality of Justice [ARCHIVED] by hw_writer
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
07 Nov 2025
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Summary
Fighting against royal nepotism,
Stood 4 humans who died for monsterkind.The first was the patient of spoiledness,
Who planted the seeds for action.
Then came the revolutionary,
The brave soul who died for the cause.
Don’t forget the human who stood on their values,
Whose silent perseverance was idolized for resilience.
At last was the giver,
Their kindness to the unkind led to their demise.The fifth, the enforcer of justice.
With the revolutionary seeds in the soil,
Born with a soul so determined,
The others sat for him so he could stand.
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A world where Chara and Asriel weren’t able to go through with their plans, yet the royal family continued on a murder spree. For each human who fell, the underground saw them as leaders of revolution, only for that hope to be stripped by the monarchy. How would Clover be different from the others?Navigating through the complex relationship between the crown and the underground, Clover and Frisk set on a journey to liberate monsterkind, using everything they could to bring justice against royalty. But when one man serves as the judge, jury, and executioner, how fair can justice really be?
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Unavoidable Outcomes by Crystalight532
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
06 Nov 2025
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Summary
The Multiverse isn't as unreachable as one might think. Sometimes, all it takes is one aware person to tip the scales for another to find out about it. But when one isn't ready for it, returning to their own world is relieving and best for the psyche.
Humanity's thirst for knowledge is near insatiable. How far would they be willing to go to learn more about their new magical coinhabitants on the surface? How far would they go if they could weaponise their magic?
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OVERWRITE Aftermath - Chapter 1: The First Domino by OVERWRITEDimp
Fandoms: Sonic the Hedgehog - All Media Types, Undertale (Video Game), Dragon Ball, Five Nights at Freddy's
06 Nov 2025
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We all like crossovers, right? They couldn't possibly get out of control...right?
After a chain of events lead to Sonic and a few others getting assimilated into the world of XTale, many changes occur as the rules of the Omniverse change to keep itself stable, which sets off a chain reaction that will change reality forever. -
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Summary
Spanning over ten years, this huge fic will be split into ten parts for each year.
This fic is Alphynecentric, with Alphys at the helm. This is a fic that came outta nowhere (as they all do) and hasn't quit since I started. I have no idea where this will go. All I know is that it is very emotional, romantic, and rather silly.
Just enjoy. This may be my last fic for this fandom.
Series
- Part 1 of Ten Years
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Summary
You fell.
Which honestly sucks ass.
You had been feeling weird, in your chest, for a while now.
Not sure how you ended up in a world of monsters but you do know one thing.
Your chest is pulling you towards something. And the closer you get, the more whole you feel.
You just hope you don't have to keep dying to get what your SOUL desires.
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You Dug Up This Grave, Now Lie In It by Taliax, ThisKwamiNeeds_aNap (KwamiNap)
Fandoms: Undertale (Video Game)
06 Nov 2025
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Mettaton brings home a strange skeleton child. With his now-skeletal cousin Chara unwilling to explain their origins or identity, he falls back Alphys's original assumption: that this child belongs to him and Papyrus.
Now he just has to convince Papyrus to play along... and convince himself that it's all just part of the show.
Series
- Part 16 of Chara and their Blook Family
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Of Shadows and Hopes by Nadia_Sempai
Fandoms: Undertale (Video Game), Don't Starve (Video Game)
05 Nov 2025
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Summary
Finally finding an escape from the world of Don't Starve, Wilson finds himself in a world unfamilliar from the one he knew before.
He isn't alone, though, Frisk and the monsters he calls his family will be there.
Somehow... Wilson P. Higgsbury knows this won't be as easy as keeping himself alive in his old prison.
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What if we got to see a more in-depth interpretation of monsters returning to the Surface? Here's my interpretation of it - through the POV of Mettaton.
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Just a normal day, Asgore and Toriel have parted ways, but still held together by old experiences and memories
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Unexpected Hero by LemonCake64
Fandoms: Undertale (Video Game), The Legend of Zelda & Related Fandoms, The Legend of Zelda: Twilight Princess, Deltarune (Video Game), The Legend of Zelda: Ocarina of Time
05 Nov 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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You're an office worker living in Ebott, one of few humans who had decided to stay after the monsters emerged a year prior. When asked why on earth you didn't hightail it out of there, you'd say that you, for one, welcomed our new monster overlords.
But despite the jokes, deep down you were excited at the prospects of an entirely new and fantastical species, plain and simple.
One unlucky day as you're caught in the rain with only a bar to seek refuge in, you get introduced to the monsters within: one of which has definitely caught your eye
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A Copykit in the Ketsukane Family: An Alternate Path by TheTakenCatking
Fandoms: Undertale (Video Game), Undertale Yellow (Master Sword Video Game)
04 Nov 2025
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Summary
This story is an alternate path for 'The New Kit in the Ketsukane Family.' Please read that one first before venturing any further into this work.
Series
- Part 2 of The New Kit in the Ketsukane Family
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Summary
Chara asks Papyrus on how things ended up how they did in the underground
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Justice and Injustice by lapisplayer21
Fandoms: Undertale (Video Game), Deltarune (Video Game)
04 Nov 2025
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Summary
Four years have passed since the barrier was destroyed, and monsterkind returned to the surface. William is happy to see that, thanks to his help, monsters have been able to build lives alongside humanity. His son, Micheal, couldn’t be happier either, with Noelle by his side while surrounded by friends.
However, figures from William’s past began to move their plans into action. As the future of monsterkind and humanity is jeopardized, William, alongside his family and friends, will have to stand against the coming threat, and grapple against those who believe that they are delivering justice to the world.
Series
- Part 2 of The Henrikson Saga
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Error of Parallax by marcoandtheskeletoncargo
Fandoms: Deltarune (Video Game), Undertale (Video Game)
04 Nov 2025
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He danced with her in the living room as he sheltered in her house from the rain. However, unbeknownst to Sans, the roof was sheltering him from something far more detrimental- a horrible fate that was fast approaching. Soon enough, he'd realise that he danced for too long, left her house too soon and neglected to confess the truth to Toriel before it was too late.
Soon after she was snatched from his reach, she was replaced with something else.
It wore her face. Her laugh.
It stole her jokes. Her warmth.
And that wasn't all it took. -
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Summary
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.
- Language:
- English
- Words:
- 1,057
- Chapters:
- 1/?
- Hits:
- 12
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Summary
It had been ten years since Undyne had first seen the sun, and it wasn’t enough anymore.
And now her people, the same people who Undyne had trained her whole life to protect, were on the brink of tearing each other apart in their desperation to be free.
What she wouldn’t give to get her hands on a human.
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Summary
Alphys really doesn't want to confess to Undyne. She whispers to Frisk,
"What if I'm not good enough?"
She coughs, and the flower repeats.
What if I'm not good enough?