1 - 20 of 1477 Works in Alternate Universe - Underswap (Undertale)

Pages Navigation

Listing Works

  1. Tags
    Summary

    Dawn lives in Israel, in her small apartment with her older sister, living, pretty broke and trying to deal with life now that she got released from her obligatory service. She did not expect skeletons to suddenly appear and make everything strange.

    Language:
    English
    Words:
    8,915
    Chapters:
    4/?
    Comments:
    9
    Kudos:
    11
    Bookmarks:
    2
    Hits:
    108
  2. Tags
    Summary

    The South Pole Station is equipped for research and Edge has always made sure things run smoothly for the inhabitants. His charges are meant to follow his rules and regulations, and in turn, he makes sure they survive in the arctic temperatures. It takes plenty of hard work and determination and Edge, along with his crew, can handle both.

    He wasn't counting on one of the newest researchers. He wasn't expecting Rus.

    Language:
    English
    Words:
    9,676
    Chapters:
    3/?
    Comments:
    49
    Kudos:
    62
    Bookmarks:
    7
    Hits:
    261
  3. Tags
    Summary

    Roleplay between my friend and I, in a special AU created thanks to Askellie.

    ----------------------------------------------

    A city made by lost Sanses where other monsters who lost their world appear instead of disappearing. There, so many people is the same. You can see two identical Undynes chatting in a bar, you can be friend with four same Papyrus, you can see yourself succeed or fail… but it’s still not you.
    Everyone seem to be you. How can you not feel lost in a place where everything that makes you unique applies to everyone? It’s easier to lose yourself when you don’t know who you are anymore.

    -------------------------------------------------------
    Arc 1:
    Cherry just arrived as a Lost Soul in the big City. Starving, he found the help of a Undyne who gave him the address of someone who can help him.

    Series
    Language:
    English
    Words:
    67,119
    Chapters:
    21/?
    Comments:
    79
    Kudos:
    65
    Bookmarks:
    9
    Hits:
    1388
  4. Tags
    Summary

    A collection of oneshots I've been building up.
    This is my first fanfic so please give me some critiques!
    Requests are open!

    Language:
    English
    Words:
    6,274
    Chapters:
    9/?
    Comments:
    15
    Kudos:
    40
    Bookmarks:
    5
    Hits:
    805
  5. Tags
    Summary

    Blueberry winds up in underfell and has a bad time. (Sorry but I love the slow burn angst stuff so we all get to suffer )

    Language:
    English
    Words:
    4,709
    Chapters:
    3/?
    Comments:
    2
    Kudos:
    7
    Hits:
    86
  6. Tags
    Summary

    A minor change... with major consequences. An Underground unlike any other universe's. When Frisk falls into Mount Ebott, they will meet strange friends, terrifying threats, and the monsters you know so well--under very different circumstances.

    (A swap AU, where swapped characters retain their original personality but due to changes in their pasts, are in swapped roles. This is gonna be LONG and kinda dark, but hopeful!!)

    Language:
    English
    Words:
    23,458
    Chapters:
    17/61
    Comments:
    6
    Kudos:
    23
    Bookmarks:
    2
    Hits:
    1064
  7. Tags
    Summary

    A night of drinking while trying to fix a broken heart may have been the best decision you ever made.

    Language:
    English
    Words:
    45,638
    Chapters:
    11/?
    Comments:
    347
    Kudos:
    535
    Bookmarks:
    88
    Hits:
    6700
  8. Tags
    Summary

    Stretch is fine, okay? Everything is just fine.

    Series
    Language:
    English
    Words:
    2,424
    Chapters:
    1/1
    Comments:
    8
    Kudos:
    43
    Bookmarks:
    2
    Hits:
    165
  9. Tags
    Summary

    It's been three months since Monsterkind has come to the surface.

    And it's absolute fucking hell.

    They have no rights, their money is worthless, and humans are beyond cruel.

    With the odds against them, Papyrus isn't sure that he can continue like this. Until a sweet old lady stumbles into his life and gives him and his brother an offer they can't refuse.

    But is kindness really still relevant in this world? Surely this is a trick, right?

    Language:
    English
    Words:
    1,907
    Chapters:
    2/?
    Comments:
    3
    Kudos:
    19
    Bookmarks:
    4
    Hits:
    172
  10. Tags
    Summary

    It has been a couple of years since monsters reached the surface, and it has taken time for them to spread out from Mt Ebbott.

    You've lived in the Northeast most of your life, said life is pretty much more than normal, to the point that it is pretty boring. Well, it won't be for long since you now have new neighbors that just happen to be monsters, skeletons to be exact.

    If it had been any other normal human, you probably would have never seen them once ever, but they don't seem to want to leave you alone.

    Oh, and you totally didn't think you'de have to close the blinds in the kitchen.

    Language:
    English
    Words:
    14,039
    Chapters:
    4/?
    Comments:
    14
    Kudos:
    119
    Bookmarks:
    21
    Hits:
    930
  11. Tags
    Summary

    After his timeline was destroyed along with almost everyone in it, the Sans who would come to be known as ‘Blue’ had an epiphany.

    Everything sucked. Like, all the time.

    It was not, perhaps, a new discovery, but it was the first time he had admitted it to himself. He had always tried to keep a positive attitude in life, even if his recent circumstances had put a sizable dent in his motivation.

    But still, he wouldn’t give up! As long as there were still monsters out there who could use his help, Blue would never give up.

    And so, stuck traveling the multiverse with a child and stuffed toy that were doing their best to kill him at every turn, Blue attempted to help prevent other universes from meeting the same fate as his - and perhaps make some new friends along the way!

    After all, just because life is hell doesn’t mean that he shouldn’t be cheerful about it!

    (in which Underswap Sans survives a no-mercy timeline unlike any other, and ends up losing both his home and his ability to Be Chill™.)

    Language:
    English
    Words:
    45,130
    Chapters:
    41/60
    Comments:
    251
    Kudos:
    329
    Bookmarks:
    51
    Hits:
    3339
  12. Tags
    Summary

    Your parents died, your older brother's dead, all you have left is a your little sister and best friend Ike. Magic has awakened, the Au's have collided, monsters are above ground now and you keep running into them, seems your little sister likes monster better anyway; especially skeleton monsters.

    Language:
    English
    Words:
    1,923
    Chapters:
    2/?
    Comments:
    2
    Kudos:
    6
    Bookmarks:
    1
    Hits:
    23
  13. Tags
    Summary

    A bunch of stories in one book! All with your favorate skeletons

     

     

    (Btw there may be more AUs I might add but i'm not so sure yet)

    Language:
    English
    Words:
    1,704
    Chapters:
    2/?
    Comments:
    1
    Kudos:
    11
    Bookmarks:
    5
    Hits:
    204
  14. Tags
    Summary

    smut from tumblr and other general sexies!

    Language:
    English
    Words:
    9,459
    Chapters:
    6/?
    Comments:
    7
    Kudos:
    31
    Bookmarks:
    2
    Hits:
    511
  15. Tags
    Summary

    You know the tale. A boy who just wanted to be left alone took a bite of an apple and he let the negativity and hate fill him and consume him. Though, this one is a bit different. After all, whoever suspects the positive one to be the most dangerous?

    ***

    WARNING: MIGHT CONTAIN SCENES THAT TUG YOUR HEART, LANGUAGE, NOT FOR THE FAINT OF HEART, TALK ABOUT TOPICS SENSITIVE TO SOME PEOPLE AND OTHER THINGS.

    READER DISCRETION IS ADVISED.

    ***

    EMPIREVERSE BELONGS TO @lunnar-chan
    EMPIRESWAP BELONGS TO @Otaku553
    DREAMTALE BELONGS TO @jokublog
    ERRORTALE BELONGS TO @crayonqueen
    INKTALE BELONGS TO @comyet
    UNDERSWAP BELONGS TO UNDERTALE COMMUNITY
    OTHERS TO BE ADDED
    UNDERTALE BELONGS TO TOBY FOX

    Language:
    English
    Words:
    221
    Chapters:
    2/?
    Kudos:
    2
    Bookmarks:
    1
    Hits:
    28
  16. Tags
    Summary

    When Red becomes sick of his usual 'eats' and decides to try something new when a tasty looking sheep at a nearby farm catches his eye socket

    -new summery-
    Your quiet life on the farm is changed when the appearance of 'new dog' start to make you question whether or not you're crazy, an embarrassing incedent with your best friend puts a strain on your friendship, And you find out just how sheltered you are from the real world.
    (I suck at summaries)

    this story follows reader and underswap Papyrus.
    FIC UNDER MAINTENANCE

    Language:
    English
    Words:
    53,260
    Chapters:
    16/?
    Comments:
    64
    Kudos:
    658
    Bookmarks:
    48
    Hits:
    7053
  17. Tags
    Summary

    I'm taking requests. Please read rules inside.

    Language:
    English
    Words:
    8,174
    Chapters:
    3/?
    Comments:
    32
    Kudos:
    9
    Bookmarks:
    2
    Hits:
    119
  18. Tags
    Summary

    Sequel to True Soul - two and a half years after the Underground Monsters escaped Mt Ebbott have passed and there are still problems between humans and monsters. And if that wasn't enough, an Organization of Monster Hunters have arisen up to attention, attacking monsters and their humans allies, causing fear and chaos for humanity and monster kind. And people are starting to wonder if the Monster Hunters are right or if they are wrong.

    The question is, will there be a new war and just how many will die this time? And what the hell did Gaster do this time to cause a paradox in reality?!

    And who is messing with the timelines and alternate dimensions?

    Series
    Language:
    English
    Words:
    89,954
    Chapters:
    25/?
    Comments:
    14
    Kudos:
    44
    Bookmarks:
    4
    Hits:
    1144
  19. Tags
    Summary

    You really shouldn’t have gone into the woods for your morning runs, but you did… and now you suffer the consequences. You are the soul mate of an unhealthy amount of monsters and when you say monsters you didn’t just mean the species. They were sick. They slaughtered every monster in the Underground, they ate other humans, they killed their own brother so no one could have them and the list goes just on and on. You hate this. You hate this so much, because somehow you still love them and want to help. This wasn’t some kind of Love that left a bitter sweet taste behind…No. What you taste was just completely vile.

    Language:
    English
    Words:
    5,004
    Chapters:
    2/?
    Comments:
    11
    Kudos:
    90
    Bookmarks:
    23
    Hits:
    707
  20. Tags
    Summary

    It's funny. Well, not really.
    But it is kind of ironic, assigning the one human that acts like an android to the one android that acts like a human.
    All of that to get rid of all the other androids who act too much like they are alive.

    Really, who would have thought that this wouldn't work out the way it was intended to?

    Language:
    English
    Words:
    11,370
    Chapters:
    3/?
    Comments:
    39
    Kudos:
    90
    Bookmarks:
    13
    Hits:
    794

Filters

Filter results:
Submit

Include

?
Include Ratings
Include Warnings
Include Categories
Include Fandoms
Include Characters
Include Relationships
Include Additional Tags

Exclude

?
Exclude Ratings
Exclude Warnings
Exclude Categories
Exclude Fandoms
Exclude Characters
Exclude Relationships
Exclude Additional Tags

More Options

Crossovers
Completion Status
Word Count
Date Updated
Submit

Pages Navigation