1 - 20 of 326 Works in Undertale Monster(s)
Navigation
Listing Works
-
Tags
Summary
A novelization of Undertale, as should be evident by the title.
But... there's a little twist.
Series
- Part 1 of Undertale: The Novelization
-
Tags
Summary
Papyrus has spent the last two and a half years on the surface as the official Monster Mascot, and his very important job requires every important assistants! A shame his previous employees haven't been the most kind individuals!
You've spent most of your life riding shot gun. Maybe it's time someone's on your team for once.
------------------
Or,
A Papyrus/Reader but him being the mascot of the Monsterkind is taken SUPER seriously and the Reader (you!!) is his brand-new assistant who used to work with really shitty people and is ELATED with how much of a sweetheart Papyrus is, and Papyrus is on his 5th assistant lowkey praying this bitch isn’t racist and is pleasantly surprised.
I proposed this on my Discord (welcome to any of my readers!) and couldn't stop myself from bringing this to life.
Series
- Part 2 of How To Be A Human Being
- Part 1 of Unsweetened Lemonade
- Part 2 of I/Me/Myself
-
Undertale Purple - Perseverance by AnonymousWriter08
Fandoms: OMORI (Video Game), Undertale (Video Game)
25 Oct 2025
Tags
Summary
A long time ago... humans and monsters lived in harmony. Until war broke between the two races.
The humans were victorious and sealed monsterkind deep underground with a powerful spell, that could only be broken with the power of seven human souls.
This was the tale of Mt. Ebott, and the tale trascended into legend. Those who climbed the mountain, weren't seen again.
And so, begins the tale of the fifth human soul to fall into the land of legend, to fall... into the Underground.
This is the tale of the Purple Soul... Sunny Suzuki.
-
Tags
Summary
Existe uma história que todo mundo conhece, uma que não precisa ser repetida. Mas o antigo misturou-se com o novo, dando à luz uma obra composta pelo imutável e por aquilo que mudou. Oito humanos caíram. O primeiro foi perdido, assim como seu irmão. Mas último não era mais o mesmo. E um dos outros seis era um pecador. A história que todo mundo conhece ainda existe, mas mudada. Transformada. Não é mais a mesma história, mas, ao mesmo tempo, é. Medos antigos e memórias ruins transformaram-se em agressividade e raiva. Certezas e fé transformaram-se em dúvidas e receio. Uma jornada difícil transformou-se numa jornada ainda mais difícil... mas muito mais recompensadora.
E com tantas coisas iguais misturando com coisas transformadas, eu não consigo não me questionar: o que mais vai se transformar? E o que se tornará?
Series
- Part 1 of AnotherTale
- Language:
- Português brasileiro
- Words:
- 4,681
- Chapters:
- 2/?
- Hits:
- 4
-
Tags
Summary
As you walked you failed to hear the screams of terror of a bus going over 100 miles per hour and the sounds of it starting to bust down- it speeds near the sidewalk—the people in it shriek. Their blood curling screams didn’t occur to you, your headphone quality being way too good. Your shoulders relaxed as you stretched your limbs; very much unaware of the danger and pain that would very much make your life way more miserable. You should move out the way. But- likewise, you are unaware. Of death flickering and time excited to cut your strings.
The bus is almost out of energy- and has been stopped.
Or so people thought.
It began to tilt- right where you were very much slowly walking. Andddddddddd—
It didn’t crush you to death.
-
Tags
Summary
Or: The one where an adult Frisk wakes up after their funeral, back at the beginning of everything. Of course, they know how to navigate all their adventures underground, but... Does anyone want to tell them what kind of sin they committed? After waking up each time, in different timelines, some of which they even know they generated, and others that they themselves didn't commit? Yeah, this isn't going to happen (it happens anyway).
Series
- Part 3 of Random Writing
-
Tags
Summary
You are a college student that just want to get yourself together, get a degree and make money enough to live alone in a cozy flat. But what should you do when you struggel with studies and different jobs while sharing a life with skeletons whom seem to don't like you?
Determination won't be enough to keep living in this hell. And a friend of yours make sure you remember that everyday.Now the breaking news:
- I love comments
- No beta reader
- English is not my mother language
- Long time until next update
- I am as bad as Asgore to name and nickname the characters -
Tags
Summary
For Monsterkind, the Surface represented freedom.
For Frisk, it's a return to some uncomfortable realities.
It all began with a simple wish. When that wish faded, Frisk tried to move on.
Except, 'moving on' was not so simple. Emerging from the Underground had put them in a worldwide spotlight.
From an unknown child, they had become an icon of great value.'The Golden Quiche'
What to expect from this story:
-Mystery Drama
-Anime
-Extensive Surface Worldbuilding
-Expanded History and Backstory
-Magic System
-More Magic
-Both new and old people.
-Feels.
-Gambits.What to not expect from this story:
-Toby Canon.
-Commonly agreed headcanons
-Slice of life. This is definitely not that.The Magus Compendium lorebook
Quiche Side Stories
My Links
Discord -
Tags
Summary
Devon searches for Frisk, one of the children he took care of with his colleagues until they suddenly dissappeared on an outing. He falls down a strange hole on Mount Ebott, unbeknownst to him coming closer and closer to reuniting with the one he was searching. But who or better yet what is that person who claims to have taken the child under her wing?
-
Tags
Summary
The power of Determination is a strength that humans have in spades. It's what let you journey through the Underground, it's what kept you going in spite of it all. It's what drove you to try and SAVE Asriel... by any and all means. But what happens when that Determination falters? What happens when Determination rots under the weight of what you've done? What happens when you lose the will to keep going?
-
Tags
Summary
oc x canon thing idk man
this COULD be treated as an x reader but like its meant to be an oc x canon
I may or may not finish this it depends
also monster Undertale oc 🥹 its so much more creativw to have monster oc's ngl (the oc is legit just an anthro fox)
the oc is bio female idk- Language:
- English
- Words:
- 647
- Chapters:
- 1/?
- Hits:
- 5
-
Tags
Summary
Ever wondered what happened after the true pacifist ending, ever wish you could see all your favourite characters live out their happily ever afters on the surface, want to see what life is like when humans and monsters start living side by side again,
Well, since it seems like a proper sequel to undertale is never gonna happen, I've decided to make my own version that encapsulates everything I loved about the original game and how I think things would play out after the ending,
Hope you enjoy the story.
-
Tags
Summary
Nine strangers. One fall. A power none of them understand.
When eight teens and a young girl follow a mysterious light into Mount Ebott, they expect adventure. What they find is a crumbling underground world of monsters, magic, and ancient conflict. But that’s not the strangest part.
Each of them awakens with a glowing SOUL—a trait linked to their heart, their will, their essence. But these SOULs don’t stay still. They shift. Swap. Sync. And with every battle, their bond grows stronger… or more dangerous.
As they struggle to understand this new power, they’ll face old threats, cryptic warnings from a familiar talking flower, and a world that remembers the war they never fought.
They just wanted answers. Now, they’re part of something much bigger—and something down here is watching.
Welcome to the Underground. Stay determined… or get creative.
- Language:
- English
- Words:
- 10,929
- Chapters:
- 11/27
- Hits:
- 47
-
A FINE LINE BETWEEN ORANGE AND YELLOW by Fantasy_Artist
Fandoms: Undertale (Video Game), Original Work
09 Oct 2025
Tags
Summary
While Aneira didn't necessarily believe monsters existed, she did find the fact that everyone and their dog still did might mean something. Her childhood town of Beddgelert believed in monsters trapped under the mountains near their home that would need a seventh soul now to break out and destroy lands.
Aneira also knew that she needed to figure out what happened to the kid she was friends with who went missing. Which was how she found herself having fallen (probably) hundreds of meters below a mountain inside a cave system. Was she stupid for leaving without telling people where she was going, definitely, but, to be fair, she didn't expect to fall; she couldn't even see the hole.
Injured and wanting to go home, Aneira braves through the underground cave systems, finding MONSTERS both friendly and foes, learning about what happened to all the previous (children) HUMANS that fell.
tldr: Aneira falls instead of Frisk, is injured and is too stubborn not to use this chance to find out what happened to a friend (definitely dead by now, but she still wants to confirm), the Undertale cast feels like something is different, but not what. They also live in Wales here because why not?
Series
-
Tags
Summary
EBOTT CITY, 191X
Three years have passed since the two districts of humans and monsters reunited, leaving their differences, which once resulted in a civil war, behind in order to strive for a brighter future together.
In the area of Roadin, you can find a little stationery shop called "Doodlesphere", owned by a certain skeleton monster: a carefree, cheerful artist and storyteller named Ink. Despite leading a relatively unexciting life up until now, his natural ability to run into trouble causes him to bump into Error one day, the so-called "Destroyer of Progress".
Because Ink is always having dreams about other universes with Error being his archenemy, the artist decides to follow said businessman out of curiosity, only to realize that he and other "outcodes" are experiencing similar dreams that seem to be connected with one another.
So now what? Ink working together with the short-tempered Destroyer to solve this mystery sounds like a dangerous idea, right? Especially if you consider Error's relation to Nightmare's gang, the infamous mafia group which is causing restlessness in Ebott City right now...Series
- Part 1 of ÆTHERVERSE (Steampunk UTMV)
-
UNDERTALE: Surface Tension by Seraph_UTST
Fandoms: Deltarune (Video Game), Undertale (Video Game)
29 Sep 2025
Tags
Summary
A long time have passed since Frisk led monsters to freedom. Now sixteen, Frisk finds themselves presenting that very story to a class full of humans and monsters
You'll meet Frisk, now sixteen, free from your control, and still carrying the weight of their choices, doing their best to bridge two worlds with kindness and honesty.
Seraph, your new vessel, a quiet, artistic boy of unknown origin who lives with Gerson and looks up to Undyne like a big sister. His drawings are oddly prophetic… and sometimes, he can feel what others feel.
Lapin, a rabbit monster new to the surface and overwhelmed by the change... maybe even a little lonely.
MK, once known as Monster Kid, now a confident chatterbox still idolizing Undyne (and maybe trying to figure themself out).
Vesper, a bat monster with a protective streak and a soft heart they try VERY hard to hide.
Aiden, Seraph’s loud, loyal best friend, a jokester who’s like a brother to him, always ready to stir up trouble or crack a smile when things get heavy.This is a story about what happens after the story ends. About choices, big and small, that shape who we become.
And sometimes… it gets weird.
-
Tags
Summary
After the neutral ending where papyrus becomes King, a new human falls into the underground after an earthquake hits.
This was originally on Wattpad.
-
The Roaring Of A Blizzard by Mazhatter
Fandoms: Deltarune (Video Game), Undertale (Video Game)
11 Sep 2025
Tags
Summary
Dark, Darker, Yet Darker
The Darkness keeps growing.
On Its Crusade, The KNIGHT Finds Someone Lost To Time And Poignant Memories.
It Raises Its Hand, And Plunges Into The Earth, Pure Darkness Erupting Out.
What Will Become Of Our Heroes When One Falls? -
Tags
Summary
This is a sub-story to Tyrant Xilian enters the undertale universe introducing a new AU called Project Ozone. The reason for this, is so people better understand what characters will be introduced in the future of the main storyline.
Series
- Part 1 of Undertale: Project Ozone
- Language:
- English
- Words:
- 3,329
- Chapters:
- 2/2
- Hits:
- 2
-
Tags
Summary
What if right before Chara could eat those buttercup flowers, their parents caught them. What if they ended up surviving?
How much would the underground change?
Would it be for better or for worse?
------------------------------------------------------------------
I'm thinking of calling this Sanatale, though I am open for suggestions :)
Also, this only rated mature mainly for the language used. Sawyer has a terrible potty mouth lol
Series
- Part 1 of Undertale Story