21 - 40 of 2,405 Works in Underswap Sans (Undertale)
Pages Navigation
Listing Works
-
Tags
Summary
It has been one month since fifty AUs were DELETEd without explanation. Ink is summoned to Blue’s AU by an emergency call and fears the worst. When he arrives, the AU is safe and Blue, Core, and Dream convince him to stay for a while.
They were not the only ones waiting for him.
Ink's brother is so happy to see him. Everyone else? Not so much.
S̶͔̄o̵͎͊o̴͉͂n̴͎͒ ̷̠̄ï̷̠t̷̜̊ ̵̳̀ẅ̸̩́i̵̻̊l̵̖͗l̷̹̎ ̷̢̕b̴͓̔e̴̜̽ ̷̳͝ṯ̸̐í̷̹m̷̙̎ě̷̫ ̸͚͒t̸͇̕ǒ̶͜ ̵̻͠b̴̅͜r̸̙͊i̸̪͂n̷̗̂ġ̷̬ ̴̡̒t̵͓̏r̴̢͒u̶̲̒ẻ̶͉ ̶̪̋"̸̢͠j̶̘̃u̷͒͜s̶͍̊t̴̢͘i̶̘̇c̸̗̑e̴͕͘"̵̢̈ ̶̰͝t̷͙̏õ̴̤ ̷͇̀t̷̫̂h̶͚̏ḙ̴͊ ̸͔͂M̸̜͠u̴͚̒l̸̲̈ṫ̶̯i̴̛̪v̷̰̿ē̶̳r̶̮̒s̷͎̍e̶̯̿.̷̮̄Series
- Part 3 of Memories of a Protector
-
Tags
Summary
Pomegranate, a old monster who dedicated his life to researching to what he called the 'Eldritch Fish Folk'. Decides to write down his encounter's and thought's into a old journal given - and suggested - by one of his crew members.
AKA: a Mermaid AU of EquinoxVerse.
-
Congratulations! You are the now older brother! by StrelitziaMystery1097
Fandoms: Undertale (Video Game)
12 Mar 2024
Tags
Summary
You've heard of Dadmare, but what about... DadDream?!
Resetmare concept created by:
@dreemurr-skelememer
It's on tumblr.Series
- Part 14 of Undertale AU ideas
-
Tags
Summary
In Underswap, Swap abandons his Royal Guard duties, bringing Alphys, Napstaton, and Undyne along.
Why? For the fun of it.
And where are these scoundrels going?
To the Annual Omega Timeline Pride Parade, of course. -
Tags
Summary
(Y/n) has had a rough week, stretch offers a sleepover at his place while blue is out. What’s some Netflix and chill between friends?
Song title : more than friends - Isabel LaRosa
-
Tags
Summary
After enduring centuries of constant wars and chaos across the multiverse, the gods stepped in to address the exhaustion felt by everyone. Tired of the ongoing pain and battles, a treaty was proposed by the guardian of positivity to prevent the multiverse from falling apart.
The deal outlined a halt to creation and destruction, urging a balanced use of positivity and negativity without exploiting their power. Gods and immortals were forbidden from entering universes unaware of their existence to prevent unintended harm.
Unaware that the creators were listening, the guardians and gods had to accept these rules permanently. Now, tasked by the creators, the guardians must guide and reform the protector and destroyer of the universes to protect their existence from a permanent looming threat.
-
Tags
Summary
Just a collection of various general headcanons I have surrounding the Undertale Multiverse.
Series
- Part 3 of Headcanon Fics
-
Tags
Summary
Your life wasn't anything special in your opinion. Your days mostly just included going to university lectures or bumming around in your apartment. That not so slowly began to change one summer, when you happened to make eye contact with a tall, dark and handsome... skeleton? Wait, that's a lot of skeletons... and are they supposed to be this handsy?!
Now you find yourself having to handle armfuls of bones and more puns than you could count time and time again but, honestly, you couldn't be happier!
OR
Female!reader being pulled into lots of domestic and fluffy situations with as well as growing closer to the many different Sanses and Papyri, with some romance finding its way in there, too.
-
Tags
Summary
Welcome to West Valley Hospital.
The first hospital to served both monster and human kind, we at West Valley pride ourselves is our care of our patients, big or small.
We are staffed with the best healthcare professionals and equipped for the treatment, both medical and surgical, of the sick and the injured.
West Valley Hospital
The Hospital of the Future, Today.Series
- Part 3 of Drabbles
-
Positive Parasites- an Underverse Infection AU by Neptune_139
Fandoms: Undertale (Video Game)
11 Mar 2024
Tags
Summary
When the balance of Positivity and Negativity slide to Nightmare's side, Dream and Ink take a drastic action to tip the scales in their favour- even if they're causing much more than everyone bargained for.
-
The Moon, The Eclipse, and The Sun by CherryLime_Simp_Alert
Fandoms: Undertale (Video Game)
11 Mar 2024
Tags
Summary
A child of the moon, eclipse and sun? Why the thought of them getting along is beyond dangerous that it almost makes sense.
-
Tags
Summary
Nightmare notices lately there's been high influxes of negativity within the multiverse. Even stranger so, was how heavily concentrated they were within one AU. When the demigod of negativity finds opportunity to investigate, he didn't quite know what he expected.
It certainly wasn't this.
---------------
(A/N: An f!god fanfic. Error comes in later.) -
golden smoke and pretty eyes by MoriTheUndead (6Why_am_here07)
Fandoms: Undertale (Video Game)
10 Mar 2024
Tags
Summary
Blue was knew lots of people, he grew up in this town after all.
So you really cant blame him from walking into the local cafe and seeing another skeleton- one he didn't recognise as well.
(And if he felt butterflies in his non-existing stomach, or his zygomatic bones heat up, well, you really can't blame him for excitedly taking the skeletons number, can you?)
----------
Or, a cryptid Drinkberry AU, written for a friend on Tik tok.)
-
Tags
Summary
Last I checked I had just gotten home from work. Now I'm sitting on the floor in some musty basement and- IS THAT SANS THE SKELETON?
Basically isekai but Undertale +AU friends. Oh yeah also it's reverse harem. Aka a fic that's been done before. A bunch. (Whoops)
Buuuuut, it has my own spin and my own (obviously hilarious) humor to it :)Also yes I have both Swapfell and Fellswap. And yes, they are two separate AUs. Swapfell is more like Underswap, and Fellswap is more like Underfell. (Swap doesn't look like a word anymore.)
-
Tags
Summary
The Council has been at war with the Emperor (more colloquially known as the King of Nightmares) for a long, long time. After defeat after defeat, they find themselves with no option but to request help from his fabled twin.
However, Dream will not help them for free; he locks eyes with Cross, and decides he wants him in exchange for the war victory. It is an easy choice to make.
But Cross is terribly apprehensive, because he his loyalty is not to the Council, but to Nightmare as his spy. He suspects Dream, Nightmare's mortal enemy, chose him knowing this, wanting information about his twin. And Nightmare is absolutely unforgiving of traitors.
But he cannot offend Dream, for he too is an Immortal. He cannot forget that both Dream and Nightmare is dangerous, that any wrong move will end in his demise or worse.
(He forgets, however, that he himself is mortal.)
[OR: A Empire/Kingdoms UTMV AU, where Cross is caught between the crossfire of Immortal/Gods! Dreamtale Twins. Who are also influenced by God!Ink and God!Error; it's a cycle, really.]
Series
- Part 12 of UTMV Longer Fics
- Part 1 of Small Mercies
-
Time never erases the secrets of our Souls by Sinaxia_KaerellWennSemeilh
Fandoms: Undertale (Video Game)
10 Mar 2024
Tags
Summary
History repeats itself but does not follow itself. Dream had never eaten a single fruit from the Tree of Emotions while Nightmare ate them all to the last one.
Nightmare has disowned this name from the start, and now seeks to reconnect with the missing twin. But Dream ceased to be Dream centuries ago …
In a seemingly calm Multiverse, something sinister is brewing in the shadows … and no one is prepared for it. -
Le Temps jamais n’efface les secrets de nos Âmes by Sinaxia_KaerellWennSemeilh
Fandoms: Undertale (Video Game)
10 Mar 2024
Tags
Summary
L'histoire se répète mais se ressemble pas. Dream n'a jamais mangé un seul fruit de l'Arbre des Émotions pendant que Nightmare les a tous mangé jusqu'au dernier.
Nightmare a renié ce nom depuis le début, et cherche maintenant à renouer contact avec le jumeau manquant. Mais Dream a cessé d’être Dream depuis des siècles …
Dans un Multivers en apparence calme, quelque chose de funeste se prépare dans l’ombre … et personne n’y est préparé. -
Sans Tumbles Through the Multiverse Headfirst by PapilioVolens
Fandoms: Undertale (Video Game)
09 Mar 2024
Tags
Summary
Sans has finally managed to fix the reset issue. It only required the deletion of a vital character. The barrier is broken, and time finally begins to move again. Recovery is slow, but Sans finds solace in his dreams. By the time he realizes his dreams of other universes are real, he has already grown attached to their residents. And then he's attacked at home and is thrust into the multiverse proper. He finds things very different from how he expected. His old friends don't recognize him, and some of them appear suspiciously older.
Even if they don't remember him, Sans's care for them has not dwindled. He'll do as he always has done, and help them however he can. He gains more allies as he explores the multiverse, and finds himself affecting the fate of many.
It doesn't take long before Sans starts to suspect that he may have a larger role in the multiverse than he predicted.
I wanted more Classic adventures through the multiverse, so here's my contribution. And cause I'm me, I can't help but try to make a saga out of it.
-
Tags
Summary
A collection of one-shots that take place in the same universe as Self Indulgence. Either set place before or what the skelebros are doing in the meantime.
Series
- Part 2 of Self Indulgence
- Language:
- English
- Words:
- 2,859
- Chapters:
- 1/?
- Hits:
- 5
-
Tags
Summary
The second Error's eyes opened and focused to their usual capacity (which was to say, not very much), he was met with the lovely sight of six blurry faces looming over him. He visibly startled, before his expression fell into annoyance.
“kæn juː stɒp ˈsteərɪŋ æt miː laɪk jɔː ˈɡɒnə iːt miː, ðə fʌk?”
Instead of backing off, the group stared at the glitch in shock, faces ranging from confused to horrified to slightly amused.
There was a brief silence, before Killer broke it with a dignified, “What the fuck?"
----Error receives a harsh blow to the head during a battle with Ink, which has an unexpected effect on his communication. Everybody is confused, and Error just wants some god damn chocolate.
Series
- Part 5 of The Internet Person's Oneshots