1 - 20 of 350 Works in Papyrus & Undyne (Undertale)

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  1. Tags
    Summary

    When this woman appears in the life of two patients and a scientist at first the scientist saw her as an apprentice, an amateur to be frank. Yet she criticizes him and the others, psychologists are meant to heal their patients not tell a scientist how to do his job. Yet she became captivating in the immaculate view of the monster: what a strange concept to have….

    A scientist and a psychologist.

    Language:
    English
    Words:
    711
    Chapters:
    1/1
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    73
  2. Tags
    Summary

    Red didn't expect Sans's apprenticeship to lead to so many opportunities for conversation. He's definitely not complaining, though - he's learned more about Sans sitting in a sentry station than he ever expected to.

    The skeletons had been given many good things. Several opportunities for peace.
    Of course they couldn't last.

    Series
    Language:
    English
    Words:
    29,024
    Chapters:
    7/7
    Comments:
    16
    Kudos:
    66
    Bookmarks:
    6
    Hits:
    700
  3. Tags
    Summary

    It's been a year and four months since the Barrier was broken for good and all Resets have come to an end. Life has been far better than anyone could have hoped for! Everyone is doing their own thing and living their best lives. Sans and Toriel have even become the parental caretakers of Frisk, Chara and Asriel. At long last, the nightmare is over.

    ...

    Unfortunately, one cannot escape their past. Sooner or later everything has to come out. The children and their genocidal past, Resets, Asgore's mishandling of the Underground...

    Then, there's Sans. A skeleton with many secrets. He's not doing so well. One could say he's the DEATH of the party. Fortunately, a certain skeleton outside of space and time knows what to do.

    "If you want to save Sans, all of you must be willing to pay the mental and emotional cost."

    In order to keep Sans alive, those closest to him must learn his secrets.

    LAST UPDATED: 11/11/21

    Artwork by Nightmaremoon999, who is translating the story to spanish!

    Series
    Language:
    English
    Words:
    142,330
    Chapters:
    17/?
    Comments:
    557
    Kudos:
    316
    Bookmarks:
    65
    Hits:
    10586
  4. Tags
    Summary

    Monsters have been freed from the Underground and are now living on the Surface, thanks to the brilliant work of Dr. Alphys. Sans feels hopeful for the first time in his life; his friends are happy, and he's been making progress coping with his past, too. With things looking up, Sans thought he may finally be able to put his darkest days behind him.

    He should have known better.

    When Alphys asks Sans for some help gathering some old research papers from the old Underground lab, Sans finds out the hard way that Alphys isn't the only Royal Scientist to thank for Monsterkind reaching the Surface.

    Language:
    English
    Words:
    8,709
    Chapters:
    1/1
    Comments:
    9
    Kudos:
    46
    Bookmarks:
    5
    Hits:
    379
  5. Tags
    Summary

    You will take care of this child. Someone needs to. Children should be allowed to loiter around fights.
    Or, How Undyne grew up.

    Series
    Language:
    English
    Words:
    6,215
    Chapters:
    6/6
    Kudos:
    14
    Bookmarks:
    2
    Hits:
    171
  6. Tags
    Summary

    exactly as the title says. self indulgent shenanigans.

    Language:
    English
    Words:
    41,399
    Chapters:
    27/?
    Comments:
    384
    Kudos:
    311
    Bookmarks:
    53
    Hits:
    6231
  7. Tags
    Summary

    It started with Undyne being introduced to the idea of a pet agility course. Happily, it didn't end in explosions!

    ...None serious enough to count!

    Language:
    English
    Words:
    1,954
    Chapters:
    1/?
    Collections:
    1
    Comments:
    3
    Kudos:
    9
    Bookmarks:
    1
    Hits:
    57
  8. Tags
    Summary

    Before waking up in a bed of Golden flowers, you remember falling asleep in your bed. The scenery you see now is all to familiar, until suddenly it clicks.
    You know where you are and who these beings are… but, how did you get here?

    This world that is all to familiar to you, is now your home. It’s up to you to help the monsters and people there, but the strange machine in Sans’s garage doesn’t seem to be helping. New - or are they the same? Monsters keep appearing underground, a little too similar to the skeleton brothers that appeared recently.

    Timelines get more confusing, universes seem to collide, and magic and machines go haywire causing people to end up in worlds that are not their own. Is there a way to give everyone that happy ending they desire?

    One things for sure, falling in love was not part of the plan. But neither was traveling Universes, so what’s new?
     

    ————————————————

    I couldn’t fit all the tags a wanted, but Underfell, Underswap, SwapFell, FellSwap, Horrortale, and probably other AU Sans and Papyrus’ will show up. Some of those AU worlds will be used to. Deltarune will also make appearances and relevance to plot in much later chapters.

    Language:
    English
    Words:
    69,231
    Chapters:
    21/100
    Comments:
    157
    Kudos:
    137
    Bookmarks:
    35
    Hits:
    2601
  9. Tags
    Summary

    Papyton being adorable as always, regardless of the universe.

    Disclaimer: I do not own Undertale or any of its AUs.

    Thank you for reading! :)

    Language:
    English
    Words:
    20,971
    Chapters:
    7/?
    Comments:
    19
    Kudos:
    35
    Bookmarks:
    2
    Hits:
    636
  10. Tags
    Summary

    A collection of one-shots, presented in no particular order, from a half-Swapped version of Undertale.

    Chapter 7: In which Papyrus has a  B a d   T i m e. (And so does everyone else, for that matter.)
    Chapter 9: In which four friends gather to enjoy an evening of anime and each other's company.
    Chapter 11: In which Wingdings watches over a human child trapped in the Underground. Death was inevitable from the start.

    Series
    Language:
    English
    Words:
    46,871
    Chapters:
    15/?
    Comments:
    29
    Kudos:
    86
    Bookmarks:
    7
    Hits:
    1599
  11. Tags
    Summary

    TW: Angst, self-harm

    THERE'S A LOT OF SAD OK. IT'S ALL I WRITE.

    Mostly Sans and Papyrus. Other characters will show up every so often.

    Language:
    English
    Words:
    3,751
    Chapters:
    3/30
    Kudos:
    9
    Hits:
    142
  12. Tags
    Summary

    What if Frisk stuck to their no-killing ideology, and tried to find a way to spare Asgore without resetting?

    Series
    Language:
    English
    Words:
    8,434
    Chapters:
    4/4
    Comments:
    16
    Kudos:
    16
    Bookmarks:
    3
    Hits:
    219
  13. Tags
    Summary

    You never expected to be tugged through your computer screen, much less deposited into the most crime-ridden city you had ever seen.

    And look, you're pretty sure the skeleton in the alley beside your crummy apartment building is everywhere you go, but someone could be setting up props everywhere. Right? Right, and dealing with the real world is easy.

    Why isn't there something to get you out? Why can't you stop seeing weird aura thingies around people's torsos? Why is that cat following you around like it knows something?

    Pretty sure you're not high. You need a nap...

     

    ...annnd now you're running from a Chicago Mafia with the help of Mr. Skeletor. Fuck.

    Language:
    English
    Words:
    291
    Chapters:
    1/?
    Kudos:
    11
    Bookmarks:
    2
    Hits:
    101
  14. Tags
    Summary

    The reconciliation of monsters and humans is a slow process, but one that Frisk has very high hopes for. With Negotiations underway, and a future spreading out before them, she can only believe that their happy ending has finally played out to fruition. But when Sans, still haunted by the fear of the resets, takes matters into his own hands as a means of 'keeping his family safe', he unwittingly sends them all spiraling down toward a dangerous conclusion.

    When a happy ending is all at once a nightmare, Frisk and her family are faced with either saving one of their own, or saving the world as they know it. And saving both might not be an option.

    Series
    Language:
    English
    Words:
    118,450
    Chapters:
    11/39
    Comments:
    181
    Kudos:
    1057
    Bookmarks:
    94
    Hits:
    36186
  15. Tags
    Summary

    Gaster didn't die, nor got erased from existence, he started to experiment with reality itself and teamed up with other Gasters... Well in the end Gaster isn't able to control such a big things like reality and some slips up happens with the many worlds, and for as much as things seems to be in his favor there are forces that can be more powerful then him... As you knows Worldtale rapresent such a thing, from within the main cluster that Gaster use for experiments, but have you ever wondered why exactly such a thing happened? Or if you are here and have read this now you know the reality why Gaster is truly a danger, the man is to curious, and even if it seems he can see and listen everything, there are limits for him as well... This is a world that broke free before it was to late, Gaster couldn't control all of them, so Asriel has his way before it's to late... No real happy endings are in this story, monsters will be met with a tremendous time, characters will die and relationships won't see the light of day. (RIP. ALPHYNE) Even still you still want to see, to proceed and learn, well who am I to stop you? After all... It's not like your choices matter.

    Series
    Language:
    English
    Words:
    18,231
    Chapters:
    7/7
    Comments:
    1
    Kudos:
    3
    Hits:
    106
  16. Tags
    Summary

    “Look, Paps, it’s just… You didn’t do anything wrong; you didn’t know any better, and besides, I might even be wrong. Maybe I’m just projecting here, because I’ve been dealing with it with Alphys and thinking about it a lot, so it’s been on my mind practically all the time—“

    And now she’s rambling. You interrupt her with a firm, “UNDYNE,” and she instantly stops.

    “Okay,” she says. “So, I might be totally wrong here, and I’m the farthest thing from a doctor, but there— I think there might be something wrong with your brother.”

    Language:
    English
    Words:
    3,160
    Chapters:
    1/1
    Comments:
    10
    Kudos:
    64
    Bookmarks:
    7
    Hits:
    262
  17. Tags
    Summary

    Flowey aka Asriel Dreemurr finds out of a concerning truth, apparently he is the only one in the entire existence that could fix this, and he silently curse on how he has to intervene... Especially with how no one can actually help without the world crashing...

    Series
    Language:
    English
    Words:
    6,587
    Chapters:
    3/?
    Comments:
    1
    Kudos:
    5
    Hits:
    212
  18. Tags
    Summary

    Realization when it come crush you hard, that is something Asriel knew, he experienced it long ago in a sense, he watched as he made every monster life hell in his reset, watching how with it he could make everyone fall down in despair, suicide or do things normally they never do, however he himself always denied an inevitable truth, he always projected a lie, hoped and tried to make sure realization never reached it as he desperately tried to believe in something while everything failed him, but after Frisk saved him realization fully settled in...

    Series
    Language:
    English
    Words:
    5,005
    Chapters:
    2/?
    Kudos:
    2
    Hits:
    141
  19. Tags
    Summary

    Papyrus is gentle and kind-hearted, yet loud and lively, almost totally innocent of the woes of the world. At least that’s what most people think. In reality, he is underestimated and infantilized by his family and even his own brother, who refuses to reveal the secrets of their past to him. Increasingly depressed by the actions of his peers, Papyrus turns to drugs to get away from it all.

    Mettaton is glamorous and egotistical, yet loving and generous, assumed by fans to be untroubled both in and out of the spotlight. However, he too is plagued by a dark past–including the worst possible betrayal by a close friend. All in all, the abuse he’s suffered has left him craving for love in the worst of places... so he's given his heart to the very man who shattered it.

    When Papyrus and Mettaton meet, sparks fly, and they begin to find in each other the love and respect they’ve needed all along. There’s only one thing standing in the way of true love, and that’s the walls they’ve built around their own hearts. Can they knock them down in time to save themselves and each other from the demons within and without?

    (PLEASE see beginning note for trigger warnings and other information.)

    Language:
    English
    Words:
    177,165
    Chapters:
    51/?
    Collections:
    1
    Comments:
    342
    Kudos:
    531
    Bookmarks:
    53
    Hits:
    11322
  20. Tags
    Summary

    Sans and Grillby have been friends for a very long time, but what if it's more than friends? Read and find out!

    IM REWRITING IT SO ALL THE CHAPTERS THAT ARE HERE ARE NOT FINAL! THE ONLY REASON IM NOT DELETING THEM IS CAUSE I DON'T WANT TO GET RID OF THEM YET :sob:

    Series
    Language:
    English
    Words:
    4,876
    Chapters:
    3/?
    Comments:
    2
    Kudos:
    9
    Bookmarks:
    2
    Hits:
    260

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