1 - 20 of 192 Works in W. D. Gaster & Sans

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  1. Tags
    Summary

    Sans is facing one of the last exams in Theoretical Magic, the only subject alongside Physics he could be considered quite decently good at, and what would an exam be without a massive blackout?

    He cannot disappoint the doc in failing the exam, so he considers...different methods. The doc however does not approve of those.

    Language:
    English
    Words:
    15,724
    Chapters:
    8/?
    Comments:
    4
    Kudos:
    142
    Bookmarks:
    1
    Hits:
    315
  2. Tags
    Summary

    This was the moment where Destiny's gears had spun. Where Error had, in his agony and despair, tore a rift within the world and flew off the edge. Or to be more specific, this is what should have happened. But with a single glance, a single staying thought, their gentle grip on their child had faltered, and Error had truly ripped the strings that both higher Deities had tried to ensnare him with. In a second of clarity, Error had turned toward Ink, and his distant soul so many worlds away filled with HATRED.

    If we must suffer, then so will you!

    When Error fell, he took Ink with him.

    Language:
    English
    Words:
    30,351
    Chapters:
    14/?
    Comments:
    23
    Kudos:
    204
    Bookmarks:
    35
    Hits:
    3297
  3. Tags
    Summary

    Glitchtale.
    Everyone knows it, and it’s hell.
    But in this timeline, Betty never betrayed them. Betty is a nice girl. And Betty …

    …Made a group chat.

    Series
    Language:
    English
    Words:
    10,208
    Chapters:
    21/?
    Comments:
    54
    Kudos:
    63
    Bookmarks:
    5
    Hits:
    1381
  4. Tags
    Summary

    "There is a prophecy. The Angel... The One Who Has Seen The Surface... They will return. And the underground will go empty."

    Frisk only had one goal, and that's to SAVE everyone. And that meant everyone. No matter how many RESETs it took.
    With all the determination she had in her SOUL, she would make that prophecy come true.

    “heh heh heh…i’m sorry, but i really gotta ask.” Sans opened his eyes, and there was nothing but blackness in them, accompanying his grim smile.

    "What kind of game do you think you're playing here, huh kid?"

    [Re-edited]

    Series
    Language:
    English
    Words:
    69,519
    Chapters:
    23/23
    Collections:
    1
    Comments:
    90
    Kudos:
    198
    Bookmarks:
    27
    Hits:
    6885
  5. Tags
    Summary

    Goodness.

    Why do people strive to be good?

    Is it because they wish to be good for goodness’ sake alone?

    Or, are they only good because they fear the punishment that might come as a result of acting otherwise?

    Moreover, if done out of fear, are those individuals truly good, or are they just pretending in order to protect themselves from recompense?

    It is too early to say with certainty, but it does make one wonder what would happen if an individual who'd been subjected to such rules was suddenly shed of them and allowed do to as they pleased without care.

    For example, if a subject(s) were placed into a situation where the concept of morality no longer applied, how would they behave in the face of this new information? What would happen, then? Would they attempt to retain their previous behavior held in conjunction with what was considered to be ‘ethical’ and have that helm their decisions, or would they seek out new pathways previously thought outside their reach and pursue their darkest desires without fear?

    For, as is commonly known, anyone can be a good person if they just try.

    Conversely, however…

    Anyone can be a bad person if they’re not careful.

    Language:
    English
    Words:
    25,109
    Chapters:
    4/?
    Comments:
    4
    Kudos:
    29
    Bookmarks:
    3
    Hits:
    720
  6. Tags
    Summary

    Long ago, Humans and Monsters lived across the surface in peace. However, the Human King believed that monsters were inferior and didn't deserve the surface. He decided to declare war on monsters.
    The war waged on for 3 years, until the Monsters had won. The Monsters had banished the humans to the ocean, but not without a fight. The final push the Humans gave was to curse all of Monster kind. This curse made it so no monster could set foot in the ocean without sinking like lead.
    Most would think that made it so the ocean was unexplored by monsters, right? No, that is not the case. Monsters made ships and boats to explore the sea. Why? There are many reasons. Exploration, profit, adventure, no one has just one reason anyways.
    The humans, however, adapted to their situation. Slowly over the thousands of years that had passed, humans evolved into Merfolk. Some were fish, some were eels, some were whales, any aquatic creature you can name has a Mer counterpart.
    Each Kingdom now lives apart, forgotten by the other. That was until now.

    Language:
    English
    Words:
    108
    Chapters:
    1/1
    Kudos:
    18
    Bookmarks:
    2
    Hits:
    195
  7. Tags
    Summary

    An unknown door in Waterfall leads the two brothers, sans and Papyrus, leaves them housing their long lost father, Dr. W. D. Gaster, who was shattered across time and space.

    Everyone else starts to remember Gaster as well, including his old lover. Gaster, and the Underground, must adapt to having him back.

    Series
    Language:
    English
    Words:
    9,554
    Chapters:
    3/?
    Comments:
    11
    Kudos:
    16
    Bookmarks:
    3
    Hits:
    283
  8. Tags
    Summary

    Just a collection of all the art I ever made for the Undertale fanfic series I'm making in my other pseud. That's all there is to it :)

    Find more from me here: https://vh-marchmallow.tumblr.com/ [I take requests! :)]

    Series
    Language:
    English
    Words:
    0
    Chapters:
    24/?
    Comments:
    21
    Kudos:
    49
    Bookmarks:
    2
    Hits:
    1025
  9. Tags
    Summary

    sans and alphys had been friends for forever, and through lab internships, deaths of friends, mental breakdowns, and questionable experiments, they will always have each others backs.

     

    (sans and alphys centric but ill focus on all characters as much as i can.)

    Series
    Language:
    English
    Words:
    1,918
    Chapters:
    2/?
    Comments:
    2
    Kudos:
    8
    Bookmarks:
    1
    Hits:
    138
  10. Tags
    Summary

    It’s an AU based on the selection of Frisk,sans and Gaster.
    基于Frisk,sans和Gaster的选择所产生的AU。

    Language:
    中文-普通话 國語
    Words:
    98,608
    Chapters:
    38/38
    Kudos:
    11
    Bookmarks:
    1
    Hits:
    271
  11. Tags
    Summary

    Three monster kids are having fun in the underground, when nothing disturbs them (wink wink.) How do kids cope with problems? Cry.

    Language:
    English
    Words:
    3,013
    Chapters:
    1/1
    Kudos:
    13
    Bookmarks:
    1
    Hits:
    103
  12. Tags
    Summary

    Gaster has been found and saved, everything seems to be going well at first… until a sudden issue lands him in the hospital.

    Series
    Language:
    English
    Words:
    14,549
    Chapters:
    13/13
    Comments:
    32
    Kudos:
    35
    Bookmarks:
    5
    Hits:
    816
  13. Tags
    Summary

    Disoriented and emotionally frayed from decades spent in the void, W.D Gaster suddenly finds himself at the mercy of a cold and arrogant alternate self. His doppelganger promises to return him to the void once his research is complete but before he can make good on his threat, Gaster is introduced to this world’s variant of his son and he is forced to make a quick, spur of the moment decision.

    This sole act sends unforeseen ripples throughout the Multiverse and hurdles Gaster on a perilous journey across it to find his way home.

    or

    Dadster plays hopscotch across the multiverse, unintentionally and intentionally acquires children, tentatively reciprocates Grillby's feelings, engages in actual literal custody battles with copies of himself, somehow steals a Bad Sans™, narrowly avoids death at the hands of Error and somehow flies under Ink’s radar for a shocking amount of time.

    Language:
    English
    Words:
    58,989
    Chapters:
    15/?
    Comments:
    157
    Kudos:
    201
    Bookmarks:
    59
    Hits:
    4058
  14. Tags
    Summary

    Comic realizes he's in heat, and he dreads Sans and Gaster inevitably noticing. After so many weeks of treating him with nothing but kindness, they're finally going to hurt him, just as Comic always knew they would. After all, why would any real monster be kind to something that was always made to be a toy?

     
    (Rescued Sanster Experiment AU. Written for Addy. Happy Birthday!! 💙💜💙✨)
    (Also a prompt fill for Sanster Week Day 1: Wartime / Hurt. The Sanster Week 2022 prompt list can be found here.)

    Series
    Language:
    English
    Words:
    1,797
    Chapters:
    1/1
    Comments:
    5
    Kudos:
    26
    Bookmarks:
    2
    Hits:
    305
  15. Tags
    Summary

    yeah yeah fanart of chap 24 from the brilliant fic by talkingsoup. very cool

    Language:
    English
    Words:
    0
    Chapters:
    1/1
    Comments:
    1
    Kudos:
    39
    Bookmarks:
    1
    Hits:
    306
  16. Tags
    Summary

    In a half-Swapped Fell-verse, Captain Sans of Her Majesty's Royal Guard unexpectedly finds himself with custody of his younger brother.

    Series
    Language:
    English
    Words:
    17,605
    Chapters:
    10/?
    Comments:
    49
    Kudos:
    78
    Bookmarks:
    5
    Hits:
    934
  17. Tags
    Summary

    People are coming to help. Might be a bit late, though.

    Series
    Language:
    English
    Words:
    2,109
    Chapters:
    5/?
    Kudos:
    12
    Hits:
    248
  18. Tags
    Language:
    中文-普通话 國語
    Words:
    3,634
    Chapters:
    1/1
    Kudos:
    3
    Hits:
    98
  19. Tags
    Summary

    I really hope you like it! Something sweet and silly with Dadster and babybones.

    Language:
    English
    Words:
    19
    Chapters:
    1/1
    Collections:
    1
    Comments:
    2
    Kudos:
    38
    Bookmarks:
    2
    Hits:
    278
  20. Tags
    Summary

    Light at the tunnel. Darkness all around her. It was so dark. Dark yet darker. Her once normal home and usual family life as a child broken by the disappearance of her sister. The only things left to be known of her existence was an old letter and a shining heart locket engraved with her name. Her sister planned to leave and laid out a plan for her little sister to one day find her.

    Was that her destined future? To follow in the steps of the letter and discover her sister one day? No. All her life she was consumed with the name “Chara”. That’s all she ever heard and even her parents set a plan for her to become what Chara was to be.

    Once the day came to move out and she was an adult…was the day everything changed for her. She decided to move to a small town in Florida. Cheap affordable living but once she got there things from her past only began to make more sense. The blurs from the message her sister was trying to deliver became more clear as the most unusual and frightening situation would happen to her. She would soon meet the person who would change both their fates.

    Language:
    English
    Words:
    4,106
    Chapters:
    3/?
    Kudos:
    1
    Bookmarks:
    1
    Hits:
    69

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