41 - 60 of 522 Bookmarked Items in Sans (Undertale) Has Issues

Navigation

List of Bookmarks

  1. 16

    Tags
    Summary

    Recollecting other timelines and alternate lifetimes causes Sans to slowly lose a grip on reality.

    Language:
    English
    Words:
    27,453
    Chapters:
    7/7
    Comments:
    64
    Kudos:
    115
    Bookmarks:
    16
    Hits:
    2,418
  2. *

    Tags
    Summary

    This is an AU in which Frisk is tiny compared to all the monsters, only a few inches tall.

    I first saw the idea for this AU at http://kuberish.tumblr.com/tagged/tiny!frisk-AU, and a lot of stuff can be found at http://rocko-newjeans.tumblr.com/tagged/tiny!frisk-au also.

    Because of the size difference between Frisk and the Monsters, several things in the game happen a bit differently. Or maybe not at all. I'll be using one-shots to show those differences.

    Series
    Language:
    English
    Words:
    30,565
    Chapters:
    13/?
    Collections:
    1
    Comments:
    161
    Kudos:
    907
    Bookmarks:
    119
    Hits:
    18,871
  3. 5

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

    Summary

    After the cracks in Sans' soul nearly kill him, Papyrus insists on routinely healing him.

    Trouble is, his soul cracks are about to be the least of his worries.

    Words:
    12,355
    Works:
    2
    Bookmarks:
    5
    • 15 Nov 2025

      Public Bookmark

    • 26 Aug 2025

      Public Bookmark

    • 30 Jul 2025

      Public Bookmark

      Bookmark Notes:

      to read

    • 21 Jul 2025

      Rec

      Bookmark Tags:
      Bookmark Collections:
      Bookmark Notes:

      AAAAAAA THIS IS THE GOOD SHIT CHEF 10/10 NO NOTES !!!!!!!
      i lovveeee love love fics that explore falling down AND. and your portrayal of it is fantastic!!!!!! sans' bones getting chalky as his soul gets worse is so creativ ei love it!!!!!!;;;;!
      red & sans' relationship is so so interesting im in love <3 sans being more easily mean to an alternate of himself just because its a verson himself???? DIVINE. ABSOLUTELY GORGEOUS BIT OF CHARACTERIZATION OOOH MY GOD IM ACTUALLY FLABBERGASTED AT HOW WELL IT SORTA BLENDS IN WITH A HC OF MINE TAHT SANS IS JEALOUS OF HIS AUS

    • 04 Jul 2025

      Public Bookmark

  5. 29

    Tags
    Summary

    After leaving Europe in a hurry, fleeing from the consecuences of some experiments on both bitties and animals that may not have been entirely legal, you buy yourself a big home and set a clandestine lab in your basement.

    Those faint-hearted want new medical discoveries, new ways to prolong life, new vaccines..... and have no guts to do some proper reseach.... You do it for them and suddenly you are the bad guy??

    Never in all the human history was the road to progress paved in flowers, your methods work, they give you fame and fortune, even if it turned to infamy when some sneaky busybody snapped a few pictures of your test subjects, you did it in the past, and you will do it again, and with all the new bitty hysteria, the pressing need to make new discoverings and the vast unexplored mysteries bitties still hide within themselves, it seems you have found a new purpose.

    Language:
    English
    Words:
    32,738
    Chapters:
    12/?
    Comments:
    301
    Kudos:
    294
    Bookmarks:
    29
    Hits:
    2,818
  6. 1

    Tags
    Summary

    Sans hadn’t always been as smart as he was, he knew that. As far as he could remember, he had been a pretty dumb little kid with little common sense and he had never been good at much of anything that wasn’t running away from people. Every now and again he would feel like something wasn’t right like his life had been moulded and he had no past.

    Set in before the events of Undertale, where Sans makes the discovery that a Basement is in his house. Spoiler everything he ever knew is thrown into the burning pile.

    Language:
    English
    Words:
    1,757
    Chapters:
    1/1
    Kudos:
    35
    Bookmarks:
    1
    Hits:
    699
  7. 72

    Tags
    Summary

    After countless resets, Sans is tired. He’s lost his last bit of hope that some day, this will all be over. Living life outside of the script is pointless. But, when one deviation causes Grillby to remember the current genocide run and all future resets, Sans gains a friend and a confidant. Going through Groundhog Day alone is hell, but together, they’ll make it work, confusing the heck out of their friends and family along the way.

    Language:
    English
    Words:
    7,665
    Chapters:
    4/?
    Comments:
    37
    Kudos:
    465
    Bookmarks:
    72
    Hits:
    4,196
  8. *

    Tags
    Summary

    Part 1: Ch.1-13
    Harry Potter is six years old when he dies, but his magic isn't quite ready to give him up just yet.
    Sans is still pretty young in monster terms, but he's raised one baby bones already, so one more couldn't hurt.
    Papyrus has always wanted to be a big brother.

    Part 2:Ch.14-18
    The monsters have made it to the surface, but their journey isn't over just yet.

    Series
    Language:
    English
    Words:
    38,448
    Chapters:
    18/18
    Collections:
    2
    Comments:
    509
    Kudos:
    1,668
    Bookmarks:
    261
    Hits:
    28,293
  9. 60

    Words:
    429,557
    Works:
    8
    Bookmarks:
    60
  10. 22

    Tags
    Summary

    They say, when you're starting to Fall Down, you should start carrying around something you love. Not so that whoever has the misfortune of needing to scatter your dust has something you love on hand, but so that you have something close-by to stave off the inevitable while you get your affairs in order.

    Sans doesn't really have anything he loves that's small enough to just carry around. He doesn't love things.

    --

    OCT 13: Black cat

    Series
    Language:
    English
    Words:
    4,048
    Chapters:
    1/1
    Comments:
    13
    Kudos:
    187
    Bookmarks:
    22
    Hits:
    1,138
  11. 12

    Tags
    Summary

    Sans has never hated anything more than his own damn SOUL now. Chara, on the other hand, is hardly disappointed with her new toy. Now all that's left is to train him. Wouldn't all that power be lovely to use against the monsters? Or, better yet, the surface? Sans is pretty far gone, but not enough to do her dirty work. Especially not if his friends… if his family’s lives are on the line. Still, he’d do anything for Papyrus...

    Language:
    English
    Words:
    4,295
    Chapters:
    2/?
    Comments:
    23
    Kudos:
    157
    Bookmarks:
    12
    Hits:
    4,790
  12. *

    Tags
    Summary

    The Barrier is broken. Monsters are free, and are slowly but surely integrating into a society that has changed a lot in their absence. The war is over. Everyone is struggling to settle in, but they are happy, as much as they can be.

    Except the one who isn’t.

    Good thing his brother is there be happy enough for both of them.

    … right?

    Language:
    English
    Words:
    31,329
    Chapters:
    10/10
    Collections:
    2
    Comments:
    413
    Kudos:
    1,453
    Bookmarks:
    268
    Hits:
    20,944
  13. *

    Tags
    Summary

    The Bystander Effect dictates that the more people that are present to an emergency situation, the less likely it is that anyone will step up and do something unprompted.

     

     

     

     

     

     

    Bravery is for story book heroes, in your opinion. Fantastic tales of daring do have never been your cup of tea. You're not brave, after all -- anxiety has made terror flow under your skin with as much familiarity and regularity as your heartbeat. You much prefer to stay in your own lane, keep to yourself, and try not to trouble anyone unnecessarily with your problems. If the world needs a hero, you're pretty sure it won't ever be you.

    But then again, sometimes the world has other ideas. After all, how can you remain a bystander when you think a kid is about to do something terribly sad and stupid?

    You never imagined you'd find answers to questions you had never let yourself ask.

    What makes a person Brave, anyway?

     

    Currently Written to: Hotland

    Series
    Language:
    English
    Words:
    179,214
    Chapters:
    57/?
    Collections:
    2
    Comments:
    891
    Kudos:
    2,811
    Bookmarks:
    499
    Hits:
    52,797
  14. 10

    Tags
    Summary

    Sans suffers from a bad day as the depression from the Underground catches up with him. It's not quite a Bad Day, but it's bad enough to make him reminisce and think deeply on his lost wings. Frisk teaches him that he doesn't have to go through it alone.

    Series
    Language:
    English
    Words:
    2,850
    Chapters:
    1/1
    Comments:
    7
    Kudos:
    183
    Bookmarks:
    10
    Hits:
    1,956
  15. 52

    Summary

    Every monster has their own wings, and they reflect their emotional state. Wings are affected whenever their soul is affected, and vice versa. These wings are unable to lift them, and instead are often used as ways of showing affection, comfort, and protection, of their loved ones, while also used to intimidate or threaten enemies. In battle, these wings take any damage that the monster would have taken, as they are used as shields. The removal of a monster’s wings is a cruel and unspeakable thing. To do so would be to remove a monster’s defenses entirely and to reduce both their health and the strength of their attack to one. They turn to dust upon removal, and then dissolve into nothingness within the next minute, leaving behind only a couple of feathers. Wings cannot be grown back; a monster only has one pair their entire life.

    Words:
    21,319
    Works:
    4
    Bookmarks:
    52
  16. 20

    Tags
    Summary

    UNDERFELL

    Papyrus is dead, so Sans goes through his stuff.

    Series
    Language:
    English
    Words:
    841
    Chapters:
    1/1
    Comments:
    12
    Kudos:
    245
    Bookmarks:
    20
    Hits:
    1,981
  17. 20

    Tags
    Summary

    You are bartender, ex-competitive swimmer at a local bar for monsters that just opened up, Grillby's. It's been a half a year since the monster's you consider myths came to the surface from the Underground.

    Tensions are high, with monsters trying to integrate themselves into human society. You and a certain skeleton are acquainted as Sans is a frequent patron at the bar. Until one day, he randomly asks you to marry him.

    Reader is named for story, and is an OC. The story can be read as a reader though.
    Inspired by something, but I forgot

    Language:
    English
    Words:
    35,941
    Chapters:
    22/22
    Comments:
    31
    Kudos:
    114
    Bookmarks:
    20
    Hits:
    2,130
  18. 13

    Summary

    Sans loves his brother more than anything else in the world. He'd do anything to keep him happy and safe.

    It's too bad that of all the things he's told himself, the universe decided to test him on that one.

    Words:
    156,470
    Works:
    3
    Bookmarks:
    13
  19. 1

    Tags
    Summary

    Sans realizes he goes through the same events over and over again but doesn't care, right?

    Language:
    English
    Words:
    1,161
    Chapters:
    1/?
    Kudos:
    8
    Bookmarks:
    1
    Hits:
    107
  20. 27

    Tags
    Summary

    Red was seriously done with today, and it had only just started. He overslept, again, which led to his Boss being late, again. That seriously pissed him off, Red might not care about his reputation, but he did. Blah blah blah. On top of that, Red forgot to clean and repair Edge’s battle body the night before, meaning he was not only late, but had to go around “LOOKING LIKE A SLOB LIKE YOU!!!”. The last words Red heard as his Boss stomped out of the house was to pick up his filthy sock pile after work, and to “NOT FALL ASLEEP AT YOUR POST AGAIN YOU LAZY-” before he grew too far away to hear.
    Red was seriously done with today.

    Language:
    English
    Words:
    2,132
    Chapters:
    1/1
    Comments:
    12
    Kudos:
    307
    Bookmarks:
    27
    Hits:
    1,711

Filters

Filter results:
Submit

Include

?
Include Ratings
Include Warnings
Include Categories
Include Fandoms
Include Characters
Include Relationships
Include Additional Tags
Include Bookmarker's Tags

Exclude

?
Exclude Ratings
Exclude Warnings
Exclude Categories
Exclude Fandoms
Exclude Characters
Exclude Relationships
Exclude Additional Tags
Exclude Bookmarker's Tags

More Options

Bookmark types
Submit

Clear Filters

Navigation