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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.
- Language:
- English
- Words:
- 1,057
- Chapters:
- 1/?
- Hits:
- 9
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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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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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After the neutral ending where papyrus becomes King, a new human falls into the underground after an earthquake hits.
This was originally on Wattpad.
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Pet Store- Adventures in the Human World with Sans & Papyrus by EstellaHedgehogK
Fandoms: Undertale (Video Game)
14 Aug 2025
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“Sans!” Papyrus’ voice broke Sans from his thoughts and he turned around to see Papyrus holding a tiny fluffy animal on his lap which they’d learned was a “kitten.”
Papyrus’s eyelights were heart-shaped and glowing and a wide smile stretched across his skull.
“Sans! It is adorable! This little creature immediately approached me and started rubbing its face against my rib cage. All while making the most peculiar rumbling sound. It likes me! I think it wants to come home with us!”
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Underlust: Retold & Retooled by BadAtUserNames420
Fandoms: Undertale (Video Game), Underlust - Fandom
30 Jul 2025
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Hello!
This is a rewrite of a old fic I made(it still on this acc infact -w-), I don't know if I'm going to finish it in fact the text in this fic rn is like a month old sooo, uhh, I will try to but no promises lolOld description:
The Underground was a peaceful place, Until the king and Queen sons died. By humans, the underground went into anarchy, Until the Royal Scientist, Found the power within Lust. now a long, long time later a human fell into the underground.Notes:
So, uhh, I have dyslexic, and this is my first story, so sorry if the story come out slow. But hopefully I don't forget about this. And the main thing I should say this a full rewrite of underlust, because in my opinion at least the story not that good. So, I'm just going to try to rewrite it, to the best of my abilities, and this will be the shortest chapter, hopefully.(And I have not read other rewrites of underlust like Underlust NT, Underlust zirkkun, etc...)
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* Once upon a time, one race ruled below the ground, MONSTERS. The king and queen had long attempted to make peace with humanity, but once the barrier had formed over the monsters access to the human world, the king and queen declared all humans that fall into the depths are to be killed
*Once upon a time, a human child fell below, the prince of monsters found the child, and showed them MERCY, and helped their recovery. The young prince took them back to the castle, hoping to show his family humans are friends.
*the king did not show MERCY.
both children died that day.*Years later, a child fell down.
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Frisk's determination was a helpful, powerful gift... before it became a curse.
When a dangerous entity known as "The Player" takes over, Frisk is helplessly left at the mercy of a power much higher than theirs. One outside reality, guided only by an insatiable curiosity.
At first, The Player's control would muffle their feelings and force them back underground after they escaped. Very soon, the experiments and runs become much worse.
First it was death, then manipulation. There's always something new, unfound secrets to quench The Player's endless thirst for more.
Will it ever be over? We can only wait and see...
Series
- Part 1 of The Cycle
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Toriel meets the first human that fell since she fled to the ruins, agreeing to let them stay with her. Little does she know, her first human child is there too.
Or
I had an idea where Chara was there for all of the humans, not just frisk.
Series
- Part 1 of Patience and Bravery
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{The Underground, Pre-Frisk}
A human hasn’t fallen Underground for nearly a decade. Monster Kid, like the other monster children, wants to know more about humans. When one does finally appear, all of the Underground goes on high alert.
Monster Kid’s curiosity gets them into trouble, but thanks to the Sentries of the Underground, they will bear witness to the strength of a true hero. -
whimsun #234 by Anonymous
Fandoms: Undertale (Video Game), Undertale Multiverse - Fandom
16 Apr 2025
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While watching a Dusttale AU, just for fun a player gives a lot of power to a Whimsun.
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Recently divorced and too proud to tell anyone how bad she's really doing, the last thing Jennifer wants is a Bitty.
Luckily, she doesn't get a vote. -
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Monsters have been freed from the underground. With this freedom, they can finally live on the surface. But things were never going to be easy.
You are an average human living in a crappy apartment building with a shitty landlord. No family, few friends, and a cat you love very much. But these new monsters moving into your building might just be the best thing to ever happen to you.
Oh yeah...and the skeleton across the hall is really cool, too.
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* There is another one of these collections of the game "Undertale" with the reader in it.
* It fills you with determination.
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A Undertale x Reader Oneshot collection from 2016-2017, crossposted from my Wattpad.
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She was running.
Without stopping.
She was running to this much talked about mountain.
Which we never come back from.
“And yet, Frisk… You came back…”
But, what if it was all a ruse?
What if your whole life had been based on secrets and lies? Would it be worth living?How can you save a whole population, when you can not even save yourself?
•| ⊱✿⊰ |•
EXA8, a creature created by humans in a laboratory, looks for Frisk and what seems to be in her memories, her seven siblings. They would have disappeared while going to Mount Ebott. After escaping, a chase lead her to this mountain. Inadvertently, she falls and wakes up in the Ruins, beginning her adventure.
But, the illusion of freedom soon breaks because, she is not alone in her head… Her memories, her feelings, that different soul… Is her whole being really completely fabricated?
Series
- Part 1 of MexamorphTale
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Undertale:Convergence by Wuaya
Fandoms: Undertale (Video Game), Deltarune (Video Game), Undertale Yellow, undertaleyellow, uty, ut - Fandom, Dr - Fandom, Games - Fandom, Video Games - Fandom, Fanfiction - Fandom, Undertale Yellow - Master Sword
06 Jun 2024
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The Almagation of entire universes,Paths,routes,Time. Entire multiverses converge into one epidemension of possibility and theory. All of this affecting happenstance is caused...such is the law of being...that is the consequence of the SAVE.
Convergence is an Undertale AU that combines multiple theories,routes,ideas,Au,and more into one story. It brings into play the idea that saving creates a universe in which the player chose to and not to do so,and by doing so,created a universe.
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DISCONTINUED! - Please check the most recent chapter for an update
You find yourself in a whirlpool of regret when you have a one night stand with a random skeleton who you hit it off with after your boyfriend cheats on you. Your anxiety has worsened and made it impossible for you to be alone, but you won’t tell anyone that.
Series
- Part 1 of Sweet Skeleton Lovin’
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A young child falls down Mt. Ebott, looking for a friend that recently went up.
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You are a college student who is getting a degree in art therapy. Just wishing you could draw in peace. Sketching your nightmares on paper helps…
He just got out of Mt Ebbot for the umpteeth time. Not that he remembers the previous times. Can he figure out what the past versions of him are trying to tell him in his data logs? And why do they want him to sit on a park bench in the woods?
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You run away. You fall into a pit, and there are monsters at the bottom. They don't look like monsters should. They all have the same face. It makes you uncomfortabl
Series
- Part 52 of Two Steps To The Left, And a Long Fall