1 - 20 of 1271 Works in Underswap Sans (Undertale)

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  1. Tags
    Summary

    You’re overworked and in need of some vacation time. This however was not what you had in mind. Buckle up buttercup, you’re in for one heck of a ride.

    Language:
    English
    Words:
    3,485
    Chapters:
    2/?
    Comments:
    4
    Kudos:
    7
    Bookmarks:
    4
    Hits:
    56
  2. Tags
    Summary

    What... Happened? (Y/N), is a girl that wakes up in a hospital not knowing where she is, she was told to have amnesia over something that happened years ago that made her go into a coma for 5 years. Later, she inherits a little house, when she goes in she finds a note with a necklace that gives her strange abilities saying that she has to recover her memories a certain way because a disastrous event is coming and it’s up to her to save the multiverse. Will she be able to do it? And what surprises await her?

    Language:
    English
    Words:
    9,297
    Chapters:
    5/?
    Kudos:
    10
    Bookmarks:
    5
    Hits:
    124
  3. Tags
    Series
    Language:
    English
    Words:
    2,346
    Chapters:
    3/?
    Comments:
    7
    Kudos:
    18
    Bookmarks:
    1
    Hits:
    260
  4. Tags
    Summary

    A science experiment created by humans (Y/n) Knows little of her own kind, and little of the world from hiding with her human family. When the barrier breaks and monsters integrate with society (Y/n) sees this as her chance to have a normal life. When she finally sees another skeleton who's to say what may happen?

    Language:
    English
    Words:
    42,449
    Chapters:
    20/?
    Comments:
    163
    Kudos:
    496
    Bookmarks:
    99
    Hits:
    10211
  5. Tags
    Summary

    Sans found an old picture album in the closet with a picture of him, his brother, and a lady. He asks Papyrus and Papyrus explains who she is and Their Story.

    PREQUEL

    Series
    Language:
    English
    Words:
    1,523
    Chapters:
    3/?
    Hits:
    8
  6. Tags
    Summary

    The Swapfell skeleton brothers are searching the multiverse for Omegas to save their dying species. They end up in Underswap#832. Appalled by the conditions there, they set their souls on saving the Omegas and bringing them home.

    Series
    Language:
    English
    Words:
    8,174
    Chapters:
    6/?
    Comments:
    35
    Kudos:
    100
    Bookmarks:
    16
    Hits:
    1562
  7. Tags
    Summary

    The skeletons are on an adventure through a fantasy realm, created by the multiverses biggest weebs.

    Underswap Undyne and Birdtale Alphys have a fanfiction they MUST share! Along with the input of other “guest” authors and the skeletons themselves.

    Join the skelebros as they face demonic swords, “sexy” nymphs, crazy chainsaw wielding/pole dancing mob bosses, Jerry with a Gollum complex, and a slew of other mishaps along the way.

    AKA; The Skeltons are on a Dungeons and Dragons inspired quest, with lots of insanity along the way.

    Series
    Language:
    English
    Words:
    44,209
    Chapters:
    9/?
    Comments:
    19
    Kudos:
    13
    Bookmarks:
    1
    Hits:
    293
  8. Tags
    Summary

    Healing from the past isn’t a competition, nor is there a time limit. There’s always a chance that adding new experiences to one’s life, and getting back into a society, will bring up old traumas.

    Series
    Language:
    English
    Words:
    5,059
    Chapters:
    4/20
    Comments:
    20
    Kudos:
    34
    Bookmarks:
    8
    Hits:
    282
  9. Tags
    Summary

    Congratulations!!

    You're one of the 'Lucky' few to get your hands on a copy of Broken Souls! It's a once in a lifetime opportunity to play with our 'Immersive' technology!!

    Create a Unique character! Meet Interesting Characters! Fall in Love! Unlock Secretes, and Much, Much More!

    Warning!!

    We are not Liable for any harmed caused! Have fun, stay safe, but most importantly!

    Don't. Die.

    Language:
    English
    Words:
    32,610
    Chapters:
    8/?
    Comments:
    147
    Kudos:
    139
    Bookmarks:
    25
    Hits:
    1490
  10. Tags
    Summary

    Four AU’s have come to a happy ending on the surface. It is a new beginning for everyone, but Berry is haunted by his past that still clings to him and threatens to pull him back into the darkness, unknown to his now growing skeleton family. The newest skeletons are from the last set that surfaced: Fellswap. They are not going to let Berry be taken. Howl and Daemon, the two newest skeletons, have to dig into a horrible truth and show the world Berry’s past, and with the help of their fellow skeletons, they hope to make a better future for him and all other monsters.

    This is adapted from a role play with GetMcDunkedOn and me (Diyami). I hope you enjoy it.

    Series
    Language:
    English
    Words:
    188,947
    Chapters:
    29/?
    Comments:
    499
    Kudos:
    198
    Bookmarks:
    34
    Hits:
    6127
  11. Tags
    Summary

    Getting sent to the void is one thing. Getting sent to the void with your cheery, bright counterpart is another.

    Language:
    English
    Words:
    4,100
    Chapters:
    1/3
    Comments:
    1
    Kudos:
    26
    Bookmarks:
    4
    Hits:
    96
  12. Tags
    Summary

    Undertale one-shots that demand I write them. Sans/papyrus x reader centric. I take requests.

    Series
    Language:
    English
    Words:
    20,277
    Chapters:
    51/?
    Comments:
    160
    Kudos:
    282
    Bookmarks:
    31
    Hits:
    7016
  13. Tags
    Summary

    Drabbles* set in the "Ebott is a Multiverse" series.
    Unless marked otherwise, assume these are very much Canon to the series.

    *no guarantee that any chapter will actually be a drabble

    Series
    Language:
    English
    Words:
    28,456
    Chapters:
    15/?
    Comments:
    359
    Kudos:
    213
    Bookmarks:
    18
    Hits:
    2941
  14. Tags
    Summary

    A compilation of self-indulgent porn fics.

    I would really appreciate feedback! This is my first time writing porn or anything sex-related.

    Language:
    English
    Words:
    463
    Chapters:
    1/31
    Kudos:
    5
    Hits:
    309
  15. Tags
    Summary

    "Hush.." Suddenly he was placed down on a big boney hand. He could fell few tentacles checking his tail and the back of his head that was exposed. After a moment he was flipped and laying down on his back, his fin between Nightmare fingers. The kraken examined him quietly.

    "Why did you try to leave?"

    Series
    Language:
    English
    Words:
    12,242
    Chapters:
    14/14
    Comments:
    69
    Kudos:
    202
    Bookmarks:
    34
    Hits:
    2970
  16. Tags
    Summary

    Y/n loves helping people, so they started a homeless shelter/food pantry/job search center for minority/marginalized groups. Their business starts up quicker than expected, thanks to the monsters emerging - but things get a little more difficult to manage when twelve skeletons make their way into y/n’s heart… and continuously sneak an adult toy into/steal it from his room. Who keeps taking it? And, who keeps putting it back…?

    (I’m low-key tired of Xreaders where the reader uses feminine pronouns… not that there’s anything wrong with them! Anyway, here’s a story where the reader is gender neutral/masc leaning. Reader uses he/him and they/them. Might be slow to update…)

    Psst!! I made a Discord. Check it out!
    https://discord.gg/mSWBSgcE

    Language:
    English
    Words:
    38,072
    Chapters:
    13/?
    Comments:
    32
    Kudos:
    95
    Bookmarks:
    34
    Hits:
    1352
  17. Tags
    Summary

    you tried warning them that their date—mate was a menace and that, although supposedly soulmates, was manipulative. they didn’t listen. it wasn’t your problem anymore. you still feel bad for those five. they didn’t deserve the oncoming tragedy awaiting them. what they did deserve was a chance at becoming better, at feeling better about themselves. begrudgingly, helping them would mean helping the rest, and that was something you would put the weight in so that those five could live happily again.

    [ lowercase intended ] [ short story ] [ no romance ]

    Language:
    English
    Words:
    11,678
    Chapters:
    5/10
    Comments:
    9
    Kudos:
    48
    Bookmarks:
    16
    Hits:
    285
  18. Tags
    Summary

    A world where humans, monsters and the supernatural meet. And you are the one who unites all three worlds, can you keep a balance in both of your lives and not lose yourself? Are you going to accept a bet and possibly lose everything? Do not forget that if you suceed, you will receive a big reward.

    (WARNING written by russian and there might be many grammar fails, read with understanding, =)
    I'm starting to get tired og reding fanfics where reader is a submissive puddle and allows everyone to do what they want. So here I am writing a fic, more to myself and my small whim)

    Language:
    English
    Words:
    6,290
    Chapters:
    6/?
    Comments:
    23
    Kudos:
    186
    Bookmarks:
    27
    Hits:
    2174
  19. Tags
    Summary

    Shorts set in the 'Drifters' universe.

    Series
    Language:
    English
    Words:
    20,192
    Chapters:
    9/?
    Comments:
    226
    Kudos:
    176
    Bookmarks:
    22
    Hits:
    2060
  20. Tags
    Summary

    Blue was in a mood, and everyone could tell. The conjoined bond mate tried her best to make him happy. And by try her best, she pestered him until he exploded and stormed off. But wait! Who's this mysterious skeleton stepping out of the machine they need to get home? And why does she have a baby?!

    Language:
    English
    Words:
    6,276
    Chapters:
    5/?
    Comments:
    3
    Kudos:
    24
    Bookmarks:
    12
    Hits:
    189

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