41 - 60 of 249 Bookmarked Items in SOUL Mechanics (Undertale)

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  1. *

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    Summary

    You, as the owner of Bouquets and Bells, have run your boutique with love put into every stitch. When monsters had first broke onto the surface, you hadn't really thought too much about how it would effect you and your business in the long run. To your very welcome surprise you meet two monsters who are interested in having a wedding and need your help to make it perfect. Along with them, they bring a whole crew of skeletons who are DETERMINED to weave themselves into your heart. Your failed engagement years ago had left scars that still marred the surface of your SOUL, but maybe they'll just find that beautiful.

    Also way too many puns.

    Language:
    English
    Words:
    55,250
    Chapters:
    13/?
    Comments:
    98
    Kudos:
    326
    Bookmarks:
    122
    Hits:
    6,724
  2. 6

    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:
    6
    • 11 Dec 2025

      Public Bookmark

    • 15 Nov 2025

      Public Bookmark

    • 26 Aug 2025

      Public Bookmark

    • 30 Jul 2025

      Public Bookmark

      Bookmark Notes:

      to read

    • 21 Jul 2025

      Rec

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      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

  3. 23

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    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:
    188
    Bookmarks:
    23
    Hits:
    1,163
  4. 29

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    Summary

    It's been three moons since Night killed everyone in his village. Its been three agonizing, heartbreaking moons since he had killed his brother.

    There's not much to do in a soulless world. This changes, ever so slightly when he hears a desperate call from someone in the abyss.

    Night doesn’t know what to make of his new situation, and he can't bring himself to move on just yet from the horrors he's committed. But life demands his interaction and input, so he forces himself up anyways.

    Dream would do the same, if they were here. But they're not, so Night might as well pick up the slack.

    Series
    Language:
    English
    Words:
    94,882
    Chapters:
    54/?
    Comments:
    266
    Kudos:
    276
    Bookmarks:
    29
    Hits:
    7,864
  5. *

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    Summary

    Having discovered Dream was emotionally manipulating him with his aura, Blue leaves the Stars and bunkers down with Nightmare and the gang.

    Featuring Dream not knowing anything, Nightmare knowing everything but pretending his empathy is just him feeling territorial, touch starvation and Blue singlehandedly trying to solve everyone's problems, to varying degrees of success.

    Series
    Language:
    English
    Words:
    12,526
    Chapters:
    10/10
    Comments:
    114
    Kudos:
    915
    Bookmarks:
    139
    Hits:
    10,091
  6. 13

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    Summary

    Killer is so focused on the sight of his SOUL held — its glow, even as dull as it looks now that he's looking closely, lights up the corruption perpetually slithering along Nightmare's bones and makes it look almost green, instead of dull black — he almost misses the twitch of browbones on Nightmare's face. Almost, because it's hard to miss such an obvious frown. Unbidden, his SOUL quivers, and Nightmare lets out a harsh breath.

    "Oh, love," he says, in turn knocking the breath out of Killer.

    Language:
    English
    Words:
    4,667
    Chapters:
    1/1
    Comments:
    19
    Kudos:
    169
    Bookmarks:
    13
    Hits:
    1,132
  7. 47

    Tags
    Summary

    [Honestly..

    After everything you've been through you didn't expect to find yourself here, in the middle of a fight between two men you recognized too much to be normal, with your unconscious husband in your arms having a near death grip on both newborns while you could at least stand without feeling your legs numb.

    You lost hope of being able to hide when both turned to look at you and your dear still sleep in your arms, whom you quickly hid from sight with your cloak, covering him as much as you could.

    "Fuck.."]

    Or; After years of being responsible for making the impossible possible in a crumbling world, your people receives an unexpected but not less welcome peace. You don't plan on freeing your claws from this chance.

    Language:
    English
    Words:
    41,275
    Chapters:
    8/?
    Comments:
    25
    Kudos:
    168
    Bookmarks:
    47
    Hits:
    3,186
  8. 63

    Tags
    Summary

    The surface has never been the same since monster emerged.

    The humans weren’t prepared for the attack and were quickly brought to their knees.

    Those closest to the barrier when it collapsed were either killed by the shockwave or were unlucky enough to survive and become feral beasts.

    The humans farther out were irreversibly altered. Some grew gnarled horns. Some sprouted animal like tails and fur. Some grew massive fangs and deadly claws.

    And some lost it all.

    She was nothing but bones and magic now.

     

    Or: Post apocalyptic mash up of the UnderFell, FellSwap Red, SwapFell Purple, and FellSwap Gold universes on the surface where Pitch, a skeleton Altered, does her best to survive and keep hidden along with her growing number of dubiously acquired goat Altered children. But things can only go unnoticed by the Monsters for so long…

    Language:
    English
    Words:
    31,136
    Chapters:
    4/?
    Comments:
    49
    Kudos:
    230
    Bookmarks:
    63
    Hits:
    3,055
  9. *

    Tags
    Summary

    *Kris? What is that light?

    *...

    * Hey Kris, what's the deal with that red heart thing?

    *Is that... Your..?

    Series
    Language:
    English
    Words:
    6,545
    Chapters:
    4/4
    Comments:
    85
    Kudos:
    1,713
    Bookmarks:
    169
    Hits:
    19,812
  10. 2

    Tags
    Summary

    y/n is the soul of determination. They've traveled a lot to get here, going through all sorts of universes and such, but now they've found a very peaceful world and plan to stay here for the rest of their "life". However, they are foreign to this world's magics and way of nature. How will this world react? Can they find a place to fit in? And most importantly, how will they get a body of their own? All this and more is coming now.

    A slight warning, the plans I have for y/n makes it so we can't have this world be the normal MLP Friendship is Magic world. So we're gonna need to make the characters of this world anthro, if that's the right word.

    Language:
    English
    Words:
    14,608
    Chapters:
    3/?
    Kudos:
    11
    Bookmarks:
    2
    Hits:
    120
  11. *

    Tags
    Summary

    The arrival of monsters from Mt. Ebott threw society into disarray. Not only was a previously unknown species discovered, but the shattering of the barrier released centuries of magic back into the world. As society struggles to move forward from their bad history with monsters, MOPA, “The Monster Obligated Placement Act” was formed. As such, all mages must provide housing for a minimum of one year for a MOPA designated monster family.

    Having jumped through enough hurdles to kill a horse, you are finally forced to house a family of your own.

    Between eight skeletons of varying color schemes, your reluctant past, forgotten dreams, and a desire to make up for your sins, you are forced to use your wits in a world breaking at the seams.

    Language:
    English
    Words:
    84,632
    Chapters:
    11/?
    Comments:
    88
    Kudos:
    504
    Bookmarks:
    121
    Hits:
    10,813
  12. *

    Tags
    Summary

    Sans finally gets some fucking therapy.

    And apparently some of his alternates.

    Lucky you.

    Series
    Language:
    English
    Words:
    19,601
    Chapters:
    15/30
    Comments:
    396
    Kudos:
    816
    Bookmarks:
    158
    Hits:
    11,016
  13. *

    Tags
    Summary

    You were like any other person, if not a bit more reclusive. After all, you couldn't imagine many other people jumping on the opportunity to work on an isolated island for a year.

    You also couldn't imagine anybody else being so welcoming to these sirens.

    And maybe that was for good reason.

    Language:
    English
    Words:
    34,286
    Chapters:
    9/9
    Comments:
    122
    Kudos:
    676
    Bookmarks:
    165
    Hits:
    13,314
  14. 16

    Tags
    Summary

    Killer agrees to a roleplay, never one not to try something new.

    He doesn't like it. He thinks. He has no emotions to confirm.

    Language:
    English
    Words:
    2,351
    Chapters:
    1/1
    Comments:
    17
    Kudos:
    220
    Bookmarks:
    16
    Hits:
    1,714
  15. 30

    Tags
    Summary

    A collection of ficlets for Kross Week, based on the prompts from here.

    Language:
    English
    Words:
    4,827
    Chapters:
    7/7
    Comments:
    36
    Kudos:
    335
    Bookmarks:
    30
    Hits:
    3,675
  16. 3

    Tags
    Summary

    Mr. (Ant) Tenna lives with Mettaton after Kris and their friends introduce the two of them. They hit it off immediately but thanks to Tenna’s past, he is struggling in a healthy and secure relationship.

    Yet, when he is ready to move on, his past seems to catch up with him.

    Language:
    English
    Words:
    5,499
    Chapters:
    2/?
    Comments:
    4
    Kudos:
    40
    Bookmarks:
    3
    Hits:
    835
  17. 17

    Tags
    Summary

    Kris’ voice was different than what most people thought. Most people had never heard them utter a word, so they started theorizing about what their voice sounded like. Some people thought that they couldn’t speak at all, some felt that they were just shy, and others thought that they were ashamed of their voice. But it was none of those.

    Or
    A fic about Kris talking and Noelle being concerned.

    Language:
    English
    Words:
    2,762
    Chapters:
    1/1
    Comments:
    7
    Kudos:
    207
    Bookmarks:
    17
    Hits:
    1,492
  18. 24

    Words:
    838,742
    Works:
    4
    Bookmarks:
    24
  19. 7

    Tags
    Summary

    Sans isn't stupid — they want something new, but he knows that something won't benefit him. That something is meant to change him, and the only benefit is for Chara.
    -
    A little study on how Sans became Killer.

    [takes place before stacked deck, but stands alone just fine]

    Series
    Language:
    English
    Words:
    1,816
    Chapters:
    1/1
    Comments:
    8
    Kudos:
    57
    Bookmarks:
    7
    Hits:
    314
  20. 19

    Tags
    Summary

    That golden sunset is always temporary.

    Frisk doesn’t know why, but every time they get their “happy ever after,” the timeline...

    It just… stops.

    No light.
    No sound.
    No sensation.
    Just oblivion.

    It all turns

    D A R K

    D A R K E R

    Y E T‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ D A R K E R

    And they reset.

    Over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and over and

    What's even the point?

    They tried everything.

    It's hopeless.

    They should just give up.

    *But it refused.

    Language:
    English
    Words:
    12,939
    Chapters:
    6/?
    Comments:
    30
    Kudos:
    75
    Bookmarks:
    19
    Hits:
    923

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