1 - 20 of 37 Works in Alternate Universe - Core Frisk (Undertale)

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  1. Tags
    Summary

    Sometimes, you liked to imagine that Frisk was this kind and sweet because of you.
    That, maybe, you had lived up to your promise of being the best sister you could be when they were first born.
    That you taking the brunt force of your abusive father’s hits and drunk mother’s curses was worth it.

    You had protected them from the reality of your family and… you knew that you had to protect them now.

    You were Determined… To stay Kind.

     

    Arc 1 - Chapters 1-18
    Arc 2 - One Shots 19-22
    Arc 3 - Entries 23-36
    Arc 4 - Chapters 37-??

    Language:
    English
    Words:
    225,195
    Chapters:
    45/?
    Comments:
    377
    Kudos:
    1381
    Bookmarks:
    255
    Hits:
    26854
  2. Tags
    Summary

    When the ErrorCore siblings find a mysterious, lost child, they resolve to travel across the Multiverse, searching for her home AU. Along the way, they are joined by various alternate versions of themselves.

    When Ink agreed to babysit his friend's children, he could never have imagined the chaos they'd unwittingly cause. Embarking on his own desperate search for his lost charges, he always seems to end up one step behind them. If only he didn't also have to deal with the unhappy parents left behind...

    Language:
    English
    Words:
    11,328
    Chapters:
    4/?
    Kudos:
    15
    Bookmarks:
    4
    Hits:
    215
  3. Tags
    Summary

    !!NO ROMANTIC RELATIONSHIPS, NO SANSCEST, NO DREAMCEST AND NO INCEST!!!
    Dream and Nightmare are brothers and brothers only!!

    You yogurts.

    ~~

    When Nightmare goes on a solo mision, the gang take their chance, and sneak around Nightmare's room. They expected to find.. well.. nothing.

    What they didn't expect was a picture of Dream with another skeleton in a purple suit.

    Or the crown that looked identical to the one Dream had.

    Its time for Nightmare to see the truth about his past. Mainly, his brother.

    Series
    Language:
    English
    Words:
    40,750
    Chapters:
    19/?
    Comments:
    644
    Kudos:
    814
    Bookmarks:
    107
    Hits:
    18641
  4. Tags
    Summary

    A breakdown and 'guide' of sorts the the undertale multiverse series Underverse from a dedicated fan who knows all too much about it!

    (and a fan who's tired of everyone complaining that the story has no lore)

    Language:
    English
    Words:
    492
    Chapters:
    3/?
    Kudos:
    10
    Bookmarks:
    1
    Hits:
    164
  5. Tags
    Summary

    Underverse-Oneshot fanfic

    What if "Overwrite" was used to reset the whole multiverse?

    Language:
    English
    Words:
    728
    Chapters:
    1/1
    Kudos:
    14
    Hits:
    138
  6. Tags
    Summary

    Underverse-Oneshot fanfics

    ¿Qué pasaría si el poder de "Sobre-escribir" fuera utilizado para reiniciar el Multiverso entero?

    Language:
    Español
    Words:
    717
    Chapters:
    1/?
    Hits:
    26
  7. Tags
    Summary

    A collection of works spreading all across the many AUs, including many of my own invention, Frans centric~

    Language:
    English
    Words:
    80,423
    Chapters:
    31/31
    Comments:
    189
    Kudos:
    252
    Bookmarks:
    28
    Hits:
    8106
  8. Tags
    Summary

    1: Flirt
    2: Weather
    3: Puns
    4: Trust
    5: Work Day
    6: Kiss
    7: Valentine’s

    Cross posted to Tumblr

    Series
    Language:
    English
    Words:
    6,909
    Chapters:
    4/7
    Collections:
    1
    Comments:
    33
    Kudos:
    57
    Bookmarks:
    7
    Hits:
    1085
  9. Tags
    Summary

    Before the events of Underverse begin, before Sans loses half his soul and before Cross and Chara wreak havoc, seven people disappear from their Multiverse. Dream, Error, Fresh, Stretch, Outer, Core!Frisk and Cross!Chara are trapped in a new world that they can't leave until they watch everything they're given. They get one chance and have to choose carefully what they change, for better or worse...

    Language:
    English
    Words:
    26,207
    Chapters:
    10/15
    Comments:
    177
    Kudos:
    169
    Bookmarks:
    31
    Hits:
    3728
  10. Tags
    Summary

    The backstory of my 9 years old dark cream shipkid, Mimosa. And now also his little sister, Mu. I'm mostly posting that here so it's not lost. You can read if you want! But be aware that's just a collection of moments happening in the past of the boy and the girl. Yes Mimosa is a boy by the way. His reference is on my tumblr if someone is curious, username "bluepalleteuniverse".

    A part of it is just fluff, another is really angsty. I'll update the tags when the angsty part come.

    English isn't my first language, so sorry if I do errors!

    Language:
    English
    Words:
    22,116
    Chapters:
    10/10
    Comments:
    3
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    227
  11. Tags
    Summary

    Ink has everything he could want.
    He has an incredible job. He is loved and adored. He has an extremely cute boyfriend. Great friends. The ability to create anything. Oh, and of course, he is also immortal.
    Basically everything necessary to live well and happy.

     

    But he still feels empty.
    And worse, the only person who could understand his situation wants to kill him

    Language:
    English
    Words:
    11,456
    Chapters:
    5/?
    Comments:
    16
    Kudos:
    75
    Bookmarks:
    12
    Hits:
    1375
  12. Tags
    Summary

    Error has lived a long and lonely life, doomed by fate to bad the dreaded destroyer of universes, whose home is the endlessly maddening Anti-void where time nor space have meaning. It is a monotonous cycle of Undernovella, destruction, and avoiding the Star Sanses.

    Until one day, when a Sans uses his machine to hunt down his Gaster and tears a crack in the realm Error calls home, he makes a choice.

    What if he goes down there and makes a casual visit to that Universe to cure his boredom?

    Surely this wouldn't change too much about the future of the Multiverse, right?

    (It absolutely does, and he never once regrets it.)

    Series
    Language:
    English
    Words:
    1,918
    Chapters:
    1/?
    Comments:
    4
    Kudos:
    124
    Bookmarks:
    33
    Hits:
    805
  13. Tags
    Summary

    You died, and the next thing you know is that you're below a tree and next to a kid skeleton who you recognize of many hours reading and watching fan works.

    You are Nightmare Sans now. Let's see how much you can survive in his story.

    Language:
    English
    Words:
    14,783
    Chapters:
    12/?
    Comments:
    14
    Kudos:
    135
    Bookmarks:
    24
    Hits:
    1872
  14. Tags
    Summary

    Where are you? You shouldn't be here. You shouldn't be this... shape. What happened?

    Series
    Language:
    English
    Words:
    1,088
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    23
    Bookmarks:
    5
    Hits:
    526
  15. Tags
    Summary

    Just like Error, Ink does not have a birthday.

    The god hadn't even known what a birthday was until Dream had explained.

    But he knows he doesn't have a birthday. Ink wasn't a mortal, he wasn't born, and he had been stuck in the anti-void for too long to remember. He didn't have a birthday. Its fine. Its fine. Its. Fine.

    Its not fine.

    Not for the Star Sanses, anyway.

    Series
    Language:
    English
    Words:
    2,167
    Chapters:
    1/1
    Comments:
    21
    Kudos:
    106
    Bookmarks:
    8
    Hits:
    629
  16. Tags
    Summary

    It wasn't an uncomment thing, that Ink would accidently overdose on one of his paints.

    Sometimes it could be funny. Other times it was just heartbreaking.

    Out of them all, he hated having too much blue the most.

    Or

    Ink accidently took too much of sadness, now trying to hide away from the other two Star Sanses until its effects wear off. But Blue and Dream won't leave their friend in pain like that.

    No romantic relationships.

    Series
    Language:
    English
    Words:
    3,292
    Chapters:
    1/1
    Comments:
    12
    Kudos:
    116
    Bookmarks:
    6
    Hits:
    842
  17. Tags
    Summary

    I always liked the image of ink being a homeless hobo skeleton creature with no sense of shame or social norms, having no idea how to math because they have no actually education and basically clinical insane, I also like to imagine that by following his rule of "don't interfere with the goings on of the multiverse" he would act feral as fuck

    So this is exactly what this is, dream and blue basically trying to tame the multiverse guardian ink.

    Language:
    English
    Words:
    4,456
    Chapters:
    3/?
    Comments:
    27
    Kudos:
    103
    Bookmarks:
    18
    Hits:
    1191
  18. Tags
    Summary

    You wake up. Your brother is gone. Of course he is. He did all this to you, he wouldn't wait. What to do? Maybe save people. You think you want to do that.

    Series
    Language:
    English
    Words:
    3,092
    Chapters:
    1/1
    Comments:
    7
    Kudos:
    25
    Bookmarks:
    4
    Hits:
    319
  19. Tags
    Summary

    Error gets bored of Ink's incessive creation when he discovers something fascinating growing on the far edges of the doodle sphere.

     

    AU Timestrings twist and knot into an unholy amalgamation of universes, spiralling with every new AU that Ink gives form. The Multiversal Singularity twisting and blending in unspeakable colors, a corrupted ruination of a universe that Error can't HeLP but feel proud of.

    Language:
    English
    Words:
    1,083
    Chapters:
    1/?
    Comments:
    1
    Kudos:
    45
    Bookmarks:
    4
    Hits:
    222
  20. Tags
    Summary

    Sans is lost outside his timeline with some lost souls. Where is he supposed to go from here?

    Language:
    English
    Words:
    1,282
    Chapters:
    6/6
    Comments:
    18
    Kudos:
    22
    Bookmarks:
    2
    Hits:
    418

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