1 - 20 of 3563 Works in Alternate Universe - Underfell (Undertale)

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  1. Tags
    Summary

    A collection of spring/summer drabbles in the Nightlights universe.

    Series
    Language:
    English
    Words:
    3,959
    Chapters:
    3/?
    Comments:
    5
    Kudos:
    19
    Bookmarks:
    3
    Hits:
    167
  2. Tags
    Summary

    You love Undertale fanfiction! you spent your free time to read them. Now you reading it on the way to your grandma's house.

    The story was set in the Underfell Universe, about y/n who has rare light magic. Y/n goes to a famous school in the Eealison kingdom but the nobles didn't like her! Y/n was bullied by Erica, Sans's fiancé and Sans helped y/n.

    y/n have friendship with Sans blah blah until a Mumut disease hitting the kingdom of Eealison, y/n manages to save the kingdom and the story ends when y/n goes to the Underground kingdom, no updates from 2017 but you get the climax of the story.

    You turned of your eyes to the car window, you watched the car speeding towards you and CRASH!!!

    Time goes slowly, your couldn't feel your body and you just heard people crowding you, you didn't have an energy to hear them and then darkness comes over you.

    When you open your eyes, you were in a place you've never seen before and suddenly headache appears you, all the memories you didn't know was mixed with the memories of your previous life and there you realize you're the antagonist of fanfiction which you finished read a few minutes ago.

    Language:
    English
    Words:
    2,078
    Chapters:
    2/20
    Comments:
    4
    Kudos:
    6
    Bookmarks:
    5
    Hits:
    105
  3. Tags
    Summary

    I bring you the area where I will put everything that is short and mini-chapters.

    Different topics that I like but i don't have the time to create a long fic…
    I will try more different topics here and even i will try to make new ones.

    I will add a lot of names from other authors here since my mainly idea is to help other people find ideas and create their own stuff.

    This area is for one shots, I think people calls them like that?
    Unrelated stories that have only 1 chapter or 2 if i make a pov from Sans.

    And also i will add the first chapter of long stories here to make you feel the boom of a new story beginning.

    That way you'll never miss one of my new fics and you will learn from yourself if you like the story or not.

    I accept ideas and suggestion. (Inside my possibilities and own likes)

    Language:
    English
    Words:
    46,039
    Chapters:
    11/?
    Comments:
    103
    Kudos:
    78
    Bookmarks:
    10
    Hits:
    1629
  4. Tags
    Summary

    Slim has two friends. Up until now, Slim thought those two friends hated each other. He was wrong.

    Now Slim has got to watch his two friends work through their cultural, emotional, and personal issues to get together. Of course, because he's their friend, they turn to him for advice and support. He's happy to it give it to them. He wants them to be happy.

    Too bad he has feelings for both of them, and watching them get together is soul wrenching.

    500 word chapters

    Language:
    English
    Words:
    500
    Chapters:
    1/5
    Comments:
    11
    Kudos:
    15
    Bookmarks:
    5
    Hits:
    35
  5. Tags
    Summary

    Ayyy! Welcome to my short story storage (try saying that five times fast)!

    This is basically different stories from my Undertale multiverse that are too short for their own stories (or beginnings of those) but deserve to be written, including stories such as Ink turning into a baby, Dust revealing his long-kept secrets, and Shattered Dream taking control of Nightmare's gang! (Yeah, sure, just list the first three stories, way to go, author -_-)

    Request rules are inside if you care to look :3

    Series
    Language:
    English
    Words:
    61,109
    Chapters:
    27/?
    Comments:
    2
    Kudos:
    29
    Bookmarks:
    6
    Hits:
    569
  6. Tags
    Summary

         Y/n was having a nice day walking down the sidewalk. She had just gotten off with work and had exited the office wearing her coat since it was a chilly fall.  “Hey Y/n!” Macy y/n’s coworker waved running to catch up to y/n. “Would you wanna go get chicken wonton tacos? I want to introduce you to my fiance Travis.” She said pointing to a boy near her. “ Oh hello” They stood there talking for a while. Suddenly a scream rang out a man in a dark coat rushed forward with a knife down the street. Heading straight for Macy. Y/n always the quick thinker pushed macy out of the way and ended up taking the knife to the gut. Y/n fell over. Blood started to pour from the wound. y/n gasped she could hear people screaming “someone call 911!”  However in the end y/n succumbed to her injuries on the spot. You died and that should be the end right? Well monsters come back and a new beginning starts hopefully new relationships start to bloom too as you get used to your new skeleton body and magic.
    I'm surprised this is so popular! For anyone new this is a voter fic. So you comment on the newest chapters to influence the story. Each chapter is short. I post daily usually.

    Language:
    English
    Words:
    46,080
    Chapters:
    58/?
    Comments:
    1024
    Kudos:
    304
    Bookmarks:
    62
    Hits:
    9127
  7. Tags
    Summary

    Blue and Stretch are falling apart until they end up in Underfell. Sometimes something unexpected can bring people together.

    Series
    Language:
    English
    Words:
    44,634
    Chapters:
    27/?
    Comments:
    191
    Kudos:
    186
    Bookmarks:
    43
    Hits:
    3855
  8. Tags
    Summary

    Even more drabbles for the 'By Any Other Name' universe

    Series
    Language:
    English
    Words:
    6,109
    Chapters:
    6/?
    Comments:
    82
    Kudos:
    117
    Bookmarks:
    4
    Hits:
    1223
  9. Tags
    Summary

    The forest is full of life and sounds.
    The birds, the flowers, the waterfalls and of course...The Soul.
    Monster and Humans all have a soul song.
    Why not hear them out, and help depressed skeletons get over their issues.

    Language:
    English
    Words:
    27,930
    Chapters:
    5/?
    Comments:
    56
    Kudos:
    268
    Bookmarks:
    55
    Hits:
    2474
  10. 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:
    47,678
    Chapters:
    10/?
    Comments:
    19
    Kudos:
    14
    Bookmarks:
    1
    Hits:
    305
  11. Tags
    Summary

    Random UT Oneshots and Headcanons. Feel free to send in requests but I’ll probably be slow.

    Language:
    English
    Words:
    364
    Chapters:
    2/?
    Comments:
    1
    Kudos:
    2
    Hits:
    40
  12. Tags
    Summary

    'grillbz,'

    the note read in neat, clean lowercase letters, the exact opposite of what signs littered Sans' half-hazardly thrown together hotdog stands, long abandoned by now; 

    'i need your help.'

    Series
    Language:
    English
    Words:
    2,578
    Chapters:
    1/1
    Collections:
    1
    Kudos:
    4
    Hits:
    11
  13. Tags
    Summary

    Sans has a secret admirer, just who could it be? Sans aims to find out who keeps sending him beautiful butterflies.

    Language:
    English
    Words:
    21,427
    Chapters:
    7/?
    Comments:
    38
    Kudos:
    50
    Bookmarks:
    16
    Hits:
    738
  14. 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.

     

    You find yourself sitting on a cold metal floor assumingely woken by the machine that stands tall before you, emitting a blinding incandescent light and what sounds like a cross between a jet engine and tardis. Blinking hard and rubbing your eyes to clear the spots from your vision, you gather your thoughts. “Where am I? How did I get here?”

    Language:
    English
    Words:
    3,485
    Chapters:
    2/?
    Comments:
    6
    Kudos:
    12
    Bookmarks:
    8
    Hits:
    101
  15. Tags
    Summary

    Sans dedicates every waking moment of his life to keep his little brother safe, happy, and blissfully ignorant of their father's depravity. He lives for the moments he can steal away with Papyrus and pretend their life is normal, happy. But as Gaster's stranglehold on Sans' life begins to loosen, he finds more to live for. He finds himself fighting back with disastrous consequences. And for the first time he's willing to risk everything for a chance at not just surviving, but actually living.

    Grillby has loved Sans from a distance, not wanting to complicate the young mans' life further. While he doesn't know the depth of Gaster's hold on Sans' psyche, he knows Sans doesn't feel safe at home and he knows the bruises he carries are deliberate. When Sans starts to butt heads with his father over the budding relationship with the gentle barkeeper, Grillby does his best to comfort and care for him; supporting him through the trials of recovery as their lives become inextricably bound together.

     

    *A prequel to the events in Lucky Strike and Us In Motion which are set in the Underfell AU.

    *This is a stand-alone plot.

    Series
    Language:
    English
    Words:
    100,401
    Chapters:
    9/?
    Comments:
    7
    Kudos:
    27
    Bookmarks:
    3
    Hits:
    361
  16. Tags
    Summary

    When invertos, people turned into monsters by their own innate magic, come about, they're herded into a facility to await True Monsters to host them, so the they can better learn to understand their new magic. That was seven years ago, and now it's just me in the facility. I've got some visitors now, and I think they're monsters hosting me out. Will I finally get out of here or is it just a false hope?

    Language:
    English
    Words:
    6,408
    Chapters:
    7/?
    Comments:
    84
    Kudos:
    126
    Bookmarks:
    40
    Hits:
    1009
  17. Tags
    Summary

    You were a grand deity before your defeat. You can't recall anything you did to inspire hatred- but it came, and it left your soul in shreds and your body in chains. You've suffered in your captivity for an eternity, your grasp on reality fading as hunger overtakes your mind.

    But even eternity has an end, and you awake one day to find your magical prison in a new place. There's some skeletons willing to help you here- but the human they seem to adore wants you dead and gone, and that sentiment spreads quickly. Hopefully you can turn things around before it's too late.

    Language:
    English
    Words:
    12,469
    Chapters:
    6/?
    Comments:
    99
    Kudos:
    486
    Bookmarks:
    142
    Hits:
    8597
  18. Tags
    Summary

    Stretch bets he can hold off an orgasm, Edge bets he can't. Things escalate. So much for a silly bet.

    Language:
    English
    Words:
    8,250
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    13
    Bookmarks:
    3
    Hits:
    94
  19. Tags
    Summary

    Papyrus has felt very alone after coming to the surface. It feels like his brother, his old friends, and all the other monsters have moved on and found happiness, while he's still lost. One day, he meets two versions of himself that make him feel accepted, and slowly learns to accept himself and his place in the world, and in their lives.

    Aka the story of how Papyrus grew up and found happiness.

    Language:
    English
    Words:
    15,065
    Chapters:
    3/?
    Comments:
    56
    Kudos:
    96
    Bookmarks:
    15
    Hits:
    634
  20. 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:
    141

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