1 - 20 of 2706 Works in Alternate Universe - Underfell (Undertale)

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  1. Tags
    Summary

    Ah, an office. A paper supply office. You'd think working there would be boring, quiet, but it isn't exactly like that. With two branches who hate each other merging into one, and a power obsessed person placed in second command, things will definitely get interesting in the Eastern branch. Drama will ensue, romance will blossom, and much more will happen in this office.

    While the skeletons have to sell paper stacks.

    Language:
    English
    Words:
    34,639
    Chapters:
    23/23
    Comments:
    44
    Kudos:
    21
    Bookmarks:
    7
    Hits:
    297
  2. Tags
    Summary

    You're best friends with a pair of skeleton brothers for nearly a year now! 5 months if we're being literal in how much you've conversed and hanged out with them. 8 months if we're just talking about Papyrus. He's the best.

    And something popped up that might very well threaten their friendship with you and their relationship with their cousins and relatives.
    Especially with their new house mates.
    Sans 'Buffet' Luu and Papyrus 'Kyle' Luu.

    You are so not happy.
    What a way to start the first year of University.

    Language:
    English
    Words:
    11,180
    Chapters:
    5/?
    Comments:
    4
    Kudos:
    21
    Bookmarks:
    9
    Hits:
    264
  3. Tags
    Summary

    The color symbolized alot of things once the monsters came to live with humanity. Blue was your favorite color. It stood for stop. It's also a reminder of your ex. Now a skeleton came into your life to show you the wonders of life. Who would of guessed he went by the name Blue.

    Language:
    English
    Words:
    2,768
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    9
    Hits:
    59
  4. Tags
    Summary

    It's been more than twenty years since you fell. You're not sure how long, exactly... long enough for six human children to fall and die in the underground.
    You've given up on saving them, almost, mostly, but you won't just stand by and do nothing.
    You won’t let another child die here. Not if you can save them.

    50,000 words about Chara being tortured and adopting a kid.

    Language:
    English
    Words:
    28,205
    Chapters:
    7/12
    Comments:
    37
    Kudos:
    36
    Bookmarks:
    4
    Hits:
    421
  5. 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:
    44,787
    Chapters:
    14/?
    Comments:
    348
    Kudos:
    264
    Bookmarks:
    31
    Hits:
    1689
  6. Tags
    Summary

    There is only so much pressure one can take before they crack. Sans hit his limit long before Frisk came crashing into his life like a brick, and everything started falling to pieces. He just didn’t know it yet.

    HwC Pre-Sequel | 100 Word Drabbles | Sans’ Backstory

    Series
    Language:
    English
    Words:
    1,900
    Chapters:
    19/?
    Comments:
    136
    Kudos:
    42
    Bookmarks:
    3
    Hits:
    539
  7. Tags
    Summary

    Sans and Papyrus of the Classic Universe (now known as Comic and Rus) have been universe-hopping throughout the infinite multiverse, connecting universes and expanding travel using the machine in their basement, but there's something different about this one...

    Series
    Language:
    English
    Words:
    12,058
    Chapters:
    6/6
    Kudos:
    6
    Bookmarks:
    1
    Hits:
    31
  8. Tags
    Summary

    For as long as she could remember, she was alone. Living life like a lie, pretending that she was normal despite the years that past and she was never growing old. She watched creatures and Humans die, easily surpassing their lives and meeting once again in the underworld - or when she is evaluating their lives.

    When Monsters make their appearance little over five years ago, her life isn’t so dull anymore - but what happens when a ton of skeletons suddenly appear and cause havoc in her boring life?

    And, uh, well.. let’s say she isn’t the easiest person to get along with.

    Language:
    English
    Words:
    24,686
    Chapters:
    7/?
    Comments:
    76
    Kudos:
    179
    Bookmarks:
    48
    Hits:
    1613
  9. Tags
    Summary

    Skyrim was harsh. The Devil-Tail siblings are used to harsh.

    Language:
    English
    Words:
    6,444
    Chapters:
    2/?
    Comments:
    1
    Kudos:
    7
    Bookmarks:
    2
    Hits:
    21
  10. Tags
    Summary

    Error is a laid back god of destruction, hating his job but reluctantly doing it. Rarely destroying, and only copies are vanquished. No one knows he exists, he never leaves the anti-void, having only the voices as company. Nightmare is trying to take over the multiverse, Ink is fighting every day to stop him, Error doesn’t care for either of them. But he wants to love and protect something, to have mercy on someone. Now a person has changed things. Error makes a dangerous choice, one that could cause trouble or a chance. Things have gotten complicated, what will become of this?

    Language:
    English
    Words:
    32,954
    Chapters:
    22/?
    Comments:
    160
    Kudos:
    773
    Bookmarks:
    92
    Hits:
    6671
  11. Tags
    Summary

    Born from a thorned "Atropa belladonna"—or a nightshade (berry) bush and the blood of a Mage, you were considered an abomination upon your brethren of the Fae Folk for many centuries. You roamed the world as an outcast; studying humanity as it rose and fell, only to repeat the process time and again, and gaining knowledge outside of the Faerie Realm. Until one day, your sins were forgiven as you put yourself on the line to save the Faerie Realm from unjust damnation at the cost of half of your power. That was 150 years ago, and now—in the year 20XX—with the release of your races’ long lost brethren, the Monsters; the world of Humans and Fae are shaken once more…However…Something is strange…

    Language:
    English
    Words:
    12,766
    Chapters:
    4/?
    Collections:
    1
    Comments:
    89
    Kudos:
    154
    Bookmarks:
    39
    Hits:
    861
  12. Tags
    Summary

    You're fighting a losing war for the survival of humanity, but your magic may help turn the tides. That is, only if you and your partner can successfully infiltrate the Sidhe army.
    ====
    To strengthen the ties of the kingdom and get control over the many small clans loyal to Grillby, Flowey accepts her mother's order to marry Papyrus Flamesman.
    ====
    The bitterness of the thousands of dreemurrs wronged for thousands of years rises in several souls. Toriel can feel their souls pulsing as one. Her vengeance will not be denied.
    ====
    Wherein polycules are love, polycules are life, and relationships are only as healthy as the participants putting in the effort to keep them that way. Relationships evolve and grow as people do.

    Series
    Language:
    English
    Words:
    6,525
    Chapters:
    2/?
    Comments:
    4
    Kudos:
    3
    Hits:
    15
  13. Tags
    Summary

    Even more drabbles from the BAON universe!

    Series
    Language:
    English
    Words:
    3,643
    Chapters:
    4/?
    Comments:
    95
    Kudos:
    81
    Bookmarks:
    2
    Hits:
    482
  14. Tags
    Summary

    In a world where nearly everyone has magic, there is a peaceful island where people live in harmony with the sea and its creatures.
    Except for you, because clearly in a past life you offended some random god and now you are cursed to be the only person relegated to the land on an island full of fishers. And despite all of that, you still managed to catch the murderous attention of a hungry mermaid. Merman. Merskeleton. Mersomething.
    Whatever. If he thinks that you're going to be an easy prey, better for him to keep fishing, because you're not going down without a fight.

    Series
    Language:
    English
    Words:
    9,481
    Chapters:
    5/?
    Comments:
    215
    Kudos:
    465
    Bookmarks:
    89
    Hits:
    3067
  15. Tags
    Summary

    DISCONTINUED

    -

    You had been living in a cabin within the middle of the woods for awhile now. It was nice. Not much, but nice. You had a job at a bakery in a town only a few minutes away, were familiar with a couple friendly faces in the town, and you were known by the nickname Ray(or, lesser known as Tai).

    However, one day you hear voices outside of your cabin. Whatever. You've had campers mess with your cabin before.

    But, in the shadows, it looks like...it looks like...

    ...a skeleton?

    Language:
    English
    Words:
    26,415
    Chapters:
    18/?
    Comments:
    76
    Kudos:
    385
    Bookmarks:
    53
    Hits:
    5631
  16. Tags
    Summary

    Compilation of Kustard fanfics

    NSFW will be applied to the Title of Chapter with appropriate warnings in the notes.

    Series
    Language:
    English
    Words:
    64,390
    Chapters:
    110/?
    Comments:
    332
    Kudos:
    638
    Bookmarks:
    54
    Hits:
    12759
  17. Tags
    Summary

    The kink and pairing will be put in the notes of every chapter as well as in the chapter title.

    Series
    Language:
    English
    Words:
    25,693
    Chapters:
    21/31
    Collections:
    1
    Comments:
    20
    Kudos:
    201
    Bookmarks:
    19
    Hits:
    6958
  18. Tags
    Summary

    Just some of my outlines, deleted chapters, and other random bits from my book "Her and Her Bones"

    Language:
    English
    Words:
    7,638
    Chapters:
    3/?
    Bookmarks:
    1
    Hits:
    57
  19. Tags
    Summary

    You didn't know what eating those people could do to you. You didn't know how falling into the underground would change you. You can't bring yourself to regret it, either way.

     

    Or, I wanted to read a fic where; Sans and Reader were already in a relationship with none of that waffling back and forth nonsense, surface monsters exist and reader is one of them, Horrortale Sans and Papyrus healing, and Reader becoming a Wendigo via eating humans and exposure to magic. This sort of popped into existence.

    Language:
    English
    Words:
    9,980
    Chapters:
    6/?
    Comments:
    76
    Kudos:
    110
    Bookmarks:
    27
    Hits:
    889
  20. Tags
    Summary

    So, it seems as if I've found myself committing to kinktober. I was so beyond pissed that I missed 2018, so I'll try my hardest, but some days might end up being delayed because I'm really talented at procrastinating and having depressive episodes.

    The prompts used here are from the Undertale specific list created by damnedxfate and vex-bittys on tumblr.

    The days will vary greatly in length from just a few hundred to a more rare few thousand words. I'm only doing as much as I feel inspired to write.

    You can see in the tags all the pairings that will eventually be featured in one or more of the days, but I'll just tell you now that you're going to find yourself with a lot of Cherryberry if you choose to sift through this shit once everything's all said and done.

    Language:
    English
    Words:
    29,775
    Chapters:
    23/31
    Comments:
    49
    Kudos:
    105
    Bookmarks:
    10
    Hits:
    3198

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