61 - 80 of 128 Bookmarked Items in Sans is Having a Bad Time (Undertale)

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  1. 1

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    Summary

    Cambria wasn’t supposed to survive the fall. But she did. And now the Underground won’t let her leave. Every time she dies, she doesn’t reset—she overwrites.

    A slow-burn Undertale canon divergence featuring glitchcore, found family, emotional trauma, and a girl the world keeps trying to delete.

    ✧ Angst-heavy | OC-centric | Soft horror | Sans x OC | Overwrite mechanics | Sad girls who don’t stay dead ✧

    Language:
    English
    Words:
    2,493
    Chapters:
    2/?
    Kudos:
    9
    Bookmarks:
    1
    Hits:
    102
  2. 28

    Tags
    Summary

    Some days are worse than others.

    He hasn't had a good one in a long time.

    --

    OR: After Sans kills Frisk at the end of a Genocide Run, they never Reset, and Sans is left to live with the fact that everyone he ever loved is dead.

    Series
    Language:
    English
    Words:
    13,818
    Chapters:
    1/1
    Comments:
    21
    Kudos:
    167
    Bookmarks:
    28
    Hits:
    1,813
  3. 5

    Tags
    Summary

    Sans goes through his normal day until Papyrus tells him something unexpected.
    "I killed them." Those were words he never thought Papyrus would say. But Don't worry, he'll take care of this, like the good older brother he is.

    Language:
    English
    Words:
    5,997
    Chapters:
    1/1
    Kudos:
    34
    Bookmarks:
    5
    Hits:
    489
  4. 4

    Words:
    14,258
    Works:
    3
    Bookmarks:
    4
  5. 9

    Tags
    Summary

    Sans is tired, he's been through so many of the player's runs that he's had to start doing runs of his own (in the literal sense). He's been picking up on clues he's left himself through his computer to help him find a way to keep him and his brother safe. The player's constant unwavering determination is putting too much strain on the structure making up reality itself. The Core can not reasonably function in these conditions so their collective magic has been weakening. It's on him to carry the burden of the Underground's situation and worsening conditions because no one else has seemed to notice.

    Sans has to put on his big boy pants and finally give a shit. You've forced his hand.

    Language:
    English
    Words:
    3,663
    Chapters:
    3/?
    Comments:
    1
    Kudos:
    62
    Bookmarks:
    9
    Hits:
    731
  6. 8

    Tags
    Summary

    A group of oneshots and story excerpts about Sans having a bad time, all revolving around pregnancy/childbirth in some way. It gets very graphic and there is death in several of the stories. No one is okay.
    There is occasional fluff though, so don't get too sad.
    DO NOT READ IF YOU WILL BE TRIGGERED BY ANY OF THE SENSITIVE CONTENT WITHIN. PLEASE READ THE TAGS

    Language:
    English
    Words:
    3,935
    Chapters:
    2/?
    Comments:
    3
    Kudos:
    76
    Bookmarks:
    8
    Hits:
    2,885
  7. 1

    Tags
    Summary

    Sans is actually from another world, after a failed attempt to get to his world after defeating Giygas. The young boy wakes up in another world, as a monster with a human soul that he desperately tries to hide. Throughout constant resets, his mind and heart break down until he becomes almost unrecognizable as the emotionless but jovial monster we know him as.

    Then elements of his past turn up and he begins to break from the inside out.

    Old fanfic, will be getting a complete and total revision once I finish revising my other fanfic. This writing is nine years old. I was 22 then.

    Language:
    English
    Words:
    1,747
    Chapters:
    2/6
    Comments:
    4
    Kudos:
    9
    Bookmarks:
    1
    Hits:
    95
  8. 11

    Tags
    Summary

    This is going to be where I drop the rest of my Sanster bits. It's all awful, cruel Gaster doing awful, cruel things to his creation.

    I wanted to write it. So I did.

    Language:
    English
    Words:
    30,059
    Chapters:
    12/?
    Comments:
    64
    Kudos:
    165
    Bookmarks:
    11
    Hits:
    5,633
  9. 14

    Tags
    Summary

    A bunch of oneshots related to my band au.

    Not necessarily consecutive

    Series
    Language:
    English
    Words:
    33,638
    Chapters:
    26/?
    Comments:
    70
    Kudos:
    104
    Bookmarks:
    14
    Hits:
    2,032
  10. 4

    Tags
    Summary

    Sans always expects to wake up on the same roof but when he wakes up as a brother of ten sisters, well he really has mixed feelings about it.
    or sans reborn as lincon loud

    Language:
    English
    Words:
    286
    Chapters:
    1/?
    Comments:
    3
    Kudos:
    15
    Bookmarks:
    4
    Hits:
    196
  11. 9

    Tags
    Summary

    They say that the void is silently judging you sins.

    Language:
    English
    Words:
    5,330
    Chapters:
    1/1
    Kudos:
    88
    Bookmarks:
    9
    Hits:
    1,352
  12. 2

    Tags
    Summary

    'Good' and 'bad' are just words, and people... Are just people.

    --

    OR:
    A peek into the lives of a particular set of brothers, in a particular AU within the "world's end" multiverse.

    Series
    Language:
    English
    Words:
    6,754
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    6
    Bookmarks:
    2
    Hits:
    388
  13. 1

    Words:
    91,463
    Works:
    2
    Bookmarks:
    1
    • 14 Apr 2025

      Rec

      Bookmark Notes:

      Love and pain and hope and fear

  14. 3

    Tags
    Summary

    You want to give up. You want to kill them all. You can't do it. You can't kill Papyrus. He is the only good thing left.

    Series
    Language:
    English
    Words:
    696
    Chapters:
    1/1
    Collections:
    1
    Comments:
    7
    Kudos:
    65
    Bookmarks:
    3
    Hits:
    1,079
  15. 10

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    Summary

    A follow up AU to K8's Asylum for Two, but with one major difference. Gaster doesn't belong here. This Universe's Gaster is gone like all the rest. Then this mad, delusional monster just showed up one day, claiming to be the Royal Scientist and demanding access to the Core.

    Now, Doctor Sans has found himself at the mercy of his clearly deranged, very dangerous patient.

    Language:
    English
    Words:
    4,698
    Chapters:
    1/1
    Comments:
    14
    Kudos:
    95
    Bookmarks:
    10
    Hits:
    1,513
  16. 3

    Tags
    Summary

    A Sans no le habría importado mucho ser confundido con su contraparte alterno, no, de hecho, Sans lo tomaría usualmente con gracia. Si… Bueno, eso no es algo que pueda aplicar a esta misma extraña situación en la que se metió “accidentalmente”.

    Series
    Language:
    Español
    Words:
    7,489
    Chapters:
    6/?
    Comments:
    2
    Kudos:
    28
    Bookmarks:
    3
    Hits:
    445
  17. 5

    Tags
    Summary

    Chara knows Sans blames her for what happened, even if he doesn't fully understand who or what she is. That she's more than just a shapeless blob of hate leeching off of Frisk, that she was once a friend.

    The demon that comes when people call its name. It didn't matter, as she was just a tether and pawn to Frisk, but maybe the usually mild tempered and sweet child was actually being controlled... Just not by her, up until the very end where their rise in stats gives her complete control in order to stop the madness. Corrupted by this entity's desire to gain power, she believes erasing the world is all that's left for them, but they refuse, and she's bewildered. She destroys it anyways, but they come back and force her hand to give the world back. Chara ends up caving in, and as Frisk completes another happy ending, they seem to go back to themself.

    She's confused, but happy as Frisk finds a way to bring her and her brother back. All that's left is to reconcile with her childhood friend.

    Language:
    English
    Words:
    4,392
    Chapters:
    2/?
    Comments:
    10
    Kudos:
    44
    Bookmarks:
    5
    Hits:
    1,272
  18. 12

    Tags
    Summary

    Necromancy (nɛkrəmænsi)
    The practice of magic involving communication with the dead by summoning their spirits as apparitions or by resurrection for the purpose of divination; to foretell future events; discovery of hidden knowledge; returning the dead person to life or to use the dead as a weapon.

    ***

    What if skeleton monsters weren't born as natural monsters?

    [PLEASE NOBODY ASK FOR MORE CHAPTERS! THIS FANFIC IS OFFICIALLY OVER AND I AM NOT WRITING ANY MORE] thank you.

    Language:
    English
    Words:
    64,399
    Chapters:
    17/17
    Comments:
    46
    Kudos:
    70
    Bookmarks:
    12
    Hits:
    1,756
  19. 3

    Summary

    This is about my Undertale AU called UnderControl!
    The Sans from this fic is called Control!Sans. He's an AT of Sans and he has Agoraphobia and Controlling tendencies!
    Control is at LV 2 as well.

    Also he can HACK.

    Words:
    42,392
    Works:
    2
    Bookmarks:
    3
  20. 1

    Summary

    Readers dealing with the effect of the UTMV---which is, essentially, having an existential crisis at meeting another version of yourself.

    The skeletons are tired of it, so why can't the reader be, too?

    Words:
    36,747
    Works:
    3
    Bookmarks:
    1

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