1 - 20 of 36 Works in Alternate Universe - No Frisk (Undertale)
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Mettaton. In the Underground, he's a household name! I mean, you'd have to be living under a rock to not know who he is. I mean, no other monsters have even dared to try being a celebrity. Everyone loves Mettaton (even Mettaton himself is his own fan). So why on earth is Mettaton laying on his bed angrily screaming into him pillow?
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Horror reaches the surface. Unfortunately, this doesn't come without strings. And annoying ass people.
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Assassin's Tale Nuteral by TimeWitchHilda
Fandoms: Assassin's Creed - All Media Types, Undertale (Video Game)
25 Apr 2025
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Desmond Miles while searching through Ezio's Memories comes to a sudden dead end after thing clearly didn't go the way they should have. And while searching for clues where the memory ends he falls down into the Underground. He and his Ancestor Altaïr who is apparently alive start working together to find a way out of the Underground. But they find more in this place then they ever would have realized.
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Hey just a story I thought up after my first three playthroughs of Undertale yes this will be going through all three routes and take its own twist along the way. I hope you enjoy.
PS: I know I am not the best speller in the world but I am doing the best I can. I would actually appreciate it if there were any spelling errors pointed out to me after my proof read. If so I'll go in and fix them Immediately.
Also I may be posting this as a Comic if you want to View it, Here is the Link to my DeviantArt https://www.deviantart.com/timewhichhilda
Series
- Part 1 of Assassin's Tale
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Summary
Long ago, two races ruled over Earth: HUMANS and MONSTERS.
One day, war broke out between the two races.
After a long battle, the humans were victorious.
They sealed the monsters underground with a magic spell.Many years later...
Mt. Ebott, year 201X.
Legends say that those who climb the mountain never return.
[ERROR]
Many, MANY more years later...
Mt. Ebott, year 202X.
One accident leads to a world of adventure... and danger.
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Originally this AU started off as a rewrite of Glitchtale, with the intro being inspired by a Sans battle simulator I played on Roblox, but now this feels less like a rewrite and more of its own thing. Whoops.
Series
- Part 1 of OMOIYARI
- Language:
- English
- Words:
- 2,131
- Chapters:
- 1/?
- Kudos:
- 1
- Hits:
- 17
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Summary
There's something off about the latest fallen human.
Perhaps to the unkeen eye, Rin is a perfectly normal- perhaps even exceptionally kind child, save for her occasionally sharp tongue. She's quick to spare and refuses to kill. One would look at her, and see a kind and gentle soul.
Flowey wouldn't be so quick. He knows that look in her eyes. How that smile is plastered on her face to hide something dark. Her kindness so firmly embedded into her actions that Flowey's sure that she's compensating for SOMETHING. And like a hound drawn to blood, Flowey can feel the underlying emptiness that drives this girl.
It's only at the climax of it all, over the King's dust and with the power of six souls, does he realize just what the girl is hiding. And then he realizes two things.
Firstly, they really aren't all that different.
Secondly, if he can get her help, he could potentially have an entirely new WORLD to play with.
And he knows just the card to play...After all, Rin would do anything to see her brother again.
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DISCARDED, but reincarnated? by orphan_account
Fandoms: Deltarune (Video Game), Undertale (Video Game)
22 Aug 2024
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The Vessel from Deltarune gets trapped in Undertale!!
(I might update this, I'm unsure right now, don't count on it.)
- Language:
- English
- Words:
- 999
- Chapters:
- 1/1
- Kudos:
- 28
- Hits:
- 343
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Izuku: Hero of Monsters by Evarstar101
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Undertale (Video Game)
19 Apr 2024
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On the day Midoriya Izuku would have received One For All, another path was taken. After the boy failed to save Katsuki Bakugou and was berated by the heroes, he left for Mount Ebott on the edge of Musutafu. Taking Bakugou’s advice he plummets into the mountains in hopes of a quick end. Unknowing he was in for an adventure of long forgotten history and lost magic.
Series
- Part 1 of Hero of Monsters
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Papyrus wakes up to find himself in a strange place. His head hurt, that was for sure. Little did the tall skeleton know, but he was about to experience something that was completely alien to him...Love for someone else, well, that wasn't family.
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Organised crime has risen in its' notoriety in the past years, with Monsters making a very deadly come back - lead by their tyrannical Don.
Don Skell.
He wants nothing but revenge. Bloody, Gruesome revenge.
But a chance encounter crosses the path of predator and prey - in turn changing their lives forever.
Because Sans likes what he sees. And he won't let his little lamb, by harmed by the hands of others.Series
- Part 1 of A Lamb's Blood
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Junko Enoshima falls into the underground, gaining the power to reset when her souls determination fuses with Chara's. After many resets, she and her new found family and friends have gotten their happy, idealistic ending. There's only one problem with that...
SUCH NAMBY PAMBY SCHLOCK IS EMBARRASSINGLY BORING!!!
OR: Junko Enoshima's Genocide Route.Series
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Skeleton monsters aren’t designed to swim.
It was this thought that passed repeatedly through Sans’ head as he clung to the tiny sailboat he had taken far out to sea, now in the midst of a hurricane level storm. In hindsight, this had been a very bad idea. -
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Sans and Papyrus grew up in a cold and lonely environment but had very different (negative) experiences with their guardian. Sans has a more difficult time dealing with the emotional damage from that than Papyrus, but luckily he meets two kind-hearted skeleton brothers who are determined to help him heal.
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On one particular day, a human child did not fall into the Underground.
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Gradient (An Undertale SI) by Xan Author of the Nightmare (xanothos)
Fandoms: Undertale (Video Game)
01 Nov 2021
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Summary
gra·di·ent | \ˈgrā-dē-ənt\
a: a part sloping upward or downward
b: a gradual blending from one color to another
On the slopes of Mt. Ebbot, a man falls down. What he finds at the bottom of his fall opens his eyes to a spectrum of possibilities, and all the myriad shades of grey between light and dark. (Undertale Self Insert) -
What Remains by Lissytato
Fandoms: Undertale (Video Game), Undertale Multiverse - Fandom
25 Aug 2021
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"In the deep, in the dark
I will tell you, the very start
Before we cried, before we lost
And all the lives, that this cost."--
What Remains is an alternative universe (AU) based on outertale and dust-tale. Please check the tags before reading!
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Lord of the Floweys by PietroFan420
Fandoms: Lord of the Flies - William Golding, Undertale (Video Game)
29 Apr 2021
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It's the Undertale characters in the situation of Lotf.
The matchups aren't exact, but this is an approximation of who takes whose role. Sans is Ralph, Alphys is Piggy, Papyrus is Simon, Flowey is Jack, Chara is Roger, and Undyne... she does her own thing tbh. The littluns are temmies.
This takes place in a timeline before Frisk, when Flowey is first learning his powers. -
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In this timeline, Humans began doing scientific research on magic not long after Asriel came to the surface with Chara’s body. The humans were shocked that Monsters still existed and wanted to find a way to harness magic themselves to protect humanity and finally destroy the monster threat once and for all. After realizing that humans could no longer wield magic, simple studies into harnessing magic turned into genetic modification to create a hybrid that could.
Over time, monsters were forgotten again and scientists continued to explore possibilities with crossing and mixing DNA between species. By the year 20XX they had successfully created a few human-animal hybrids. It was unknown as to whether or not these Hybrids could wield magic, as by this time there weren’t many people who even believed in magic anymore. The poor creatures were looked down upon and seen as inferior, often kept as lab animals to test new medicines and vaccines. It was not unusual for them to be abused, or even hunted down, should they manage to escape.
You are one such creature, a young canine Hybrid, born in a lab. You have narrowly escaped with your life, fleeing from humans up Mt Ebott.
And this is where the story begins. -
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A human child falls into the Netherworld, filled with single-minded determination.
A monster child finds them and decides to guide them through the Netherworld.
The monster child can tell something is wrong with his new friend.
Can he save them? Do they even want to be saved?Series
- Part 1 of AngelTale – The Story of Angel Dreemurr
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You're just a regular Canadian woman living in a big city. A river runs through it. You're walking along that river when you get too close to the water and you find something you didn't expect: a skeleton laying in the mud. Why is there a Halloween decoration here? It's Spring. Wait, is it breathing?
You've never heard of Mt. Ebott, but you're about to begin a new chapter of your life.
Series
- Part 1 of CanuckTale
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When monsters came up from the underground, they came fighting. It didn't take long for them to take over and enslave the human race. Those who could work did and those who couldn't were sent to make more workers. In other cases some were bought as pets to entertain monsters.
You live on the street trying to keep hidden. How long until your captured and where will you end up when you are?
Updates Once a Month~