1 - 20 of 2,977 Works in Underswap Sans (Undertale)

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  1. Tags
    Summary

    Disclaimers:
    Several details in this fic are heavily inspired by 'Blue joins the bad sanses' comic, so go check that out
    Canon innacuracies: Passive and Corrupted Nightmare are the same person, Ink is the creator and not the protector, Ink, Error, Nightmare, and Dream, are all gods, Blue, Killer, Horror, and Dust's specific au timelines were all destroyed, and i took liberties with how the void works. Also, no Cross sans will be mentioned, i don't know enough about underverse, and there will be some OC non-sans God/entity/things later on. The fic will be split into parts, each lasting nine chapters.
    Schedule: Once a week, on Saturday, Sunday, or Monday, and i will post art or a reference sheet with every chapter. Trigger warnings will be specified in chapter notes. I've never written for undertale before, so please let me know what you guys think :3

    With that said, the actual plot: After an injured Error crashes into Nightmare and Co's home, a close bond starts to form between the two gods, both forced villains. In light of Ink's attempt to kill Error, Dream finally starts to lose it, and Blue gets dragged along.

    Average chapter length is 500-2000

    Series
    Language:
    English
    Words:
    31,404
    Chapters:
    27/?
    Comments:
    151
    Kudos:
    177
    Bookmarks:
    30
    Hits:
    5,668
  2. Tags
    Summary

    You are in a basement in a cabin.

    That cabin is in the woods.

    In the woods, on his way, is a skeleton

    He is coming to kill you.

    Will you let him?

    Language:
    English
    Words:
    2,118
    Chapters:
    4/?
    Comments:
    21
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    91
  3. Tags
    Summary

    We're back with another year of Inkwhumptobertale!

    And this year, we have another twist: another list! That's right: every day, I'll be facing the challenge of eight different unrelated prompts, and I'll have to do my best to cram them all into the story, somehow. Admittedly, there is a low chance of me actually doing that, but I am obligated to use at least three prompts each day, and I'll add more if possible. I'd like to do at least one day fitting all eight prompts into the story at some point in the month, though. So..prepare for chaos!

    These characters are not mine!

    Series
    Language:
    English
    Words:
    35,214
    Chapters:
    19/32
    Comments:
    35
    Kudos:
    45
    Hits:
    786
  4. Tags
    Summary

    The god of death never liked children.

    He didnt like people, he didn't like the thing that calls itself his brother even though its just one of many, he doesn't like rules, he doesn't like his king.

    But most of all, he never liked children, he hates work. And children are work, that's all they are.

    So no, he doesn't feel paternal to the little runt that just happens to look similar to him. Don't ask him again, and also, he will NOT be giving it up. Its his now. Even if he doesn't want it.

    Language:
    English
    Words:
    878
    Chapters:
    1/?
    Kudos:
    1
    Hits:
    13
  5. Tags
    Summary

    You and your family are just enjoying a nice day at the park, when a life changing event happens that ruins everything.

    You get taken away to a facility to be tested on...

    Life doesn't feel as peaceful as it once did, you hated your new life.

    "I wish I could just go into those story books I used to read..."

    Language:
    English
    Words:
    102,401
    Chapters:
    16/?
    Comments:
    54
    Kudos:
    221
    Bookmarks:
    66
    Hits:
    5,476
  6. Tags
    Summary

    Hi- uhm- Story with Blue joins the Bad Guys and FGoD Error In one- Bad Dream, Ink gets a redemption arc.

    Das it.

    Also, UnderFell, UnderSwap and Undertale Skeleton Brothers are all brothers, so no Red/Classic.

    Also, gray Echo Flowers inspo is from the story For The Forgotten Ones. I forgot who wrote it T^T.... But It's a good story, go check them out!

    Language:
    English
    Words:
    12,847
    Chapters:
    11/?
    Comments:
    38
    Kudos:
    51
    Bookmarks:
    11
    Hits:
    1,080
  7. Tags
    Summary

    New kinktober! One chapter a day for the entire month!!! With a list I made myself, very excited to show everything I've written.
    Just like the other ones every chapter contains some form of hypnosis/mind control/brainwashing. I'll do my best to tag but i can't tag absolutely everything so look at the warnings at each chapter or in the table of contents.

    Series
    Language:
    English
    Words:
    45,680
    Chapters:
    19/32
    Comments:
    91
    Kudos:
    44
    Bookmarks:
    4
    Hits:
    4,721
  8. Tags
    Summary

    The thing about soulmates is, no matter what pries them apart, they always...always find a way back together

    Chapters 1-3: Prologue
    Chapters 4+: Main Story
     

    *Chapters set to auto release every Saturday!

    *This is a rewrite of I Have The Power of Gaster AND Anime On My Side. Same concept, with a bit of a serious feel.*

    **Please be aware that this is not like my usual reader-inserts!! This story is in 3rd person pov, very vague description of a female reader. Unnamed (Pet names only). No use of y/n, y/e/c etc.**

    Language:
    English
    Words:
    15,222
    Chapters:
    4/?
    Comments:
    3
    Kudos:
    18
    Bookmarks:
    10
    Hits:
    148
  9. 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.

    Language:
    English
    Words:
    1,302
    Chapters:
    2/67
    Comments:
    2
    Kudos:
    17
    Bookmarks:
    3
    Hits:
    134
  10. Tags
    Summary

    Just posted this late despite having this written for a while, but eh

    OC-tober Day 7 "Summer Night"

    Series
    Language:
    English
    Words:
    217
    Chapters:
    1/1
    Kudos:
    1
    Hits:
    19
  11. Tags
    Summary

    You are on death's bed, there is no denying it at this point. Your good friend listened to you rave about an upcoming otome game you have been desperate to play since you've heard of it's creation. Only to sadden when your prognosis would keep you from seeing it in your lifetime. Well this good friend manages to get you a copy. So who would have thought that when you eventually passed on, you'd wake up as a healthy you? With goat ears, nubby horns, and a cute fluffy tail? Also a barrage of skeletons waiting on you hand and foot, calling you their queen... After playing many routes, there is one thing you are sure of... To make sure Black doesn't kill you like he does in the game... yet you don't seem to understand the stark contrast of yourself vs the queen as the skeletons do... and if you aren't careful? Black and the others will fall head over heels for you.

    Language:
    English
    Words:
    5,883
    Chapters:
    2/?
    Comments:
    25
    Kudos:
    123
    Bookmarks:
    34
    Hits:
    906
  12. 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

    Language:
    English
    Words:
    57,120
    Chapters:
    21/?
    Comments:
    865
    Kudos:
    1,499
    Bookmarks:
    294
    Hits:
    45,837
  13. Tags
    Summary

    A little bit of one Ink's days, 300 years after Dream was lost.

    Language:
    English
    Words:
    1,130
    Chapters:
    1/1
    Kudos:
    5
    Hits:
    51
  14. Tags
    Summary

    First attempt at kinktober, featuring my sona Zir!

    Very self indulgent.

    Language:
    English
    Words:
    5,181
    Chapters:
    5/?
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    812
  15. Tags
    Summary

    You'd never expected to be one of those people who bonded with a random stray, and if you did, you never expected it to turn out like this. The tiny... blob of an animal was cute, affectionate, and melted your heart before you'd even named him. Unfortunately, not everything is as it seems. You've met this lovely creature before, and he definitely remembers you...

    Language:
    English
    Words:
    16,726
    Chapters:
    26/?
    Comments:
    90
    Kudos:
    299
    Bookmarks:
    49
    Hits:
    3,352
  16. Tags
    Summary

    blue is tired of being stuck in the castle. he wants to go home but nightmare doesn't want to fulfill his wishes

    Series
    Language:
    English
    Words:
    2,432
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    20
    Bookmarks:
    1
    Hits:
    167
  17. Tags
    Summary

    Lost in the tidal waves of dream, he was shocked when a hand carpet up to his neck. It felt like it was more for support– angling his head so dream could dive his tongue deeper into his mouth. That is until hand squeezed his neck. It didn’t have too much behind it but it was very noticeable to blue.

    He gasped like he was out of breath– breaking the kiss effectively as he pushed back. His blue eyes were blown wide in shock. Dream immediately let go, his own yellow eyelights blown wide as if he didn’t realize what he’d done.

    Series
    Language:
    English
    Words:
    2,619
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    18
    Hits:
    126
  18. Tags
    Summary

    It was just supposed to be another in and out. Steal what was worth something and skedaddle. Back to...well, they didn't exactly have a home. Not anymore. Wasn't important.

    Back to the issue at hand.

    How were they to know who owned the place? What kind of right hand of a powerful mob boss lives in the suburbs? Why does the house look so normal? Why...

    And they have a sex dungeon.

    Awesome.

    Language:
    English
    Words:
    88,669
    Chapters:
    38/?
    Comments:
    169
    Kudos:
    70
    Bookmarks:
    13
    Hits:
    3,150
  19. Tags
    Summary

    Oh: In which Blueberry learns earlier (through Error, in the Anti-Void) that his genetic material was used to build new beings: Nightmare and Dream.

    He's in shock and overthinking until he concludes that, hey, he wants to meet them. He succeeds, not in the conventional way, but he does… Now, we'll accompany Blueberror on his journey out of the Anti-Void, to observe his practically children.

    Series
    Language:
    English
    Words:
    43,867
    Chapters:
    13/?
    Comments:
    155
    Kudos:
    160
    Bookmarks:
    21
    Hits:
    2,555
  20. Tags
    Summary

    Positivity falls and Destruction is left to pick up the ravaged (and melting?) pieces.

    Language:
    English
    Words:
    2,417
    Chapters:
    1/?
    Kudos:
    6
    Bookmarks:
    2
    Hits:
    88

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