1 - 20 of 2816 Works in Alternate Universe - Underswap (Undertale)

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  1. Tags
    Summary

    "Yugi..."

    "...If you continue being my assistant, I'll tell you a story... one day." Hanako had a light smile on her face, "But for now.. promise me you'd still be my assistant by then, okay?"

    "Of course. I'll keep my promise, Hanako-chan..."

    They then intertwined their pinky fingers together to signify a promise. This was the day, a promise was made between an apparition and a human.

    Language:
    English
    Words:
    540
    Chapters:
    1/1
    Hits:
    5
  2. Tags
    Summary

    After the Fall of Atlas, Remnant huntress Weiss Schnee finds herself in a very strange world where everything is different, and huntsmen have never existed. As she struggles to find out what has happened to her (and the Relic of Knowledge that came with her), six strange, magical (and... rather demanding) skeleton monsters take her in, though they know nothing about her or what's happened to her, offering her protection from a world she knows nothing about.

    Of course, only in exchange for her services as a... maid?! A Schnee heiress, working as an indentured servant?!

    But there's yet another problem: in this world, humans don't have anything like Aura or Semblances. And if these skeletons find out that Weiss has them, they might think she's a mage.

    Given how... antagonistic these skeleton monsters are towards humans in general, and monsterkind's history with mages...

    Well, Weiss has quite a balancing act to keep up in this mansion.

     

    (NOTE: This work assumes that you are up-to-date with RWBY Volume 8 - if you haven't finished that volume, a lot of stuff I've written here will not make sense. I make some minor canon changes to get to the setup, but very minor.)

    Language:
    English
    Words:
    8,164
    Chapters:
    1/40
    Kudos:
    15
    Hits:
    16
  3. Tags
    Summary

    You're awake, but you're also not. You fade into the inky black, not quite knowing what to expect of this.

    Despite it all, you weren't scared. It was comforting. It felt like peace.

    But there was a deep part of you that burned. You wanted to live. You wanted to survive.

    And now? Now you had to deal with the consequences of cheating death.

    Language:
    English
    Words:
    459
    Chapters:
    1/1
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    7
  4. Tags
    Summary

    Woah! Fennec's original self (Underswap) going through his journey

    Language:
    English
    Words:
    4,091
    Chapters:
    11/?
    Kudos:
    2
    Hits:
    43
  5. Tags
    Summary

    Reader is in a bit of bind. Brother is missing in action and assumed dead. Leaving behind two kids and a sister in law that has vanished with his life insurance. Reader having the burden of her feelings at having lost her brother. Now has to face trying to take care of her niece and nephew alone with limited funds. Searching around and desperate for jobs... Reader comes across a unique little store at the end of her list... and a swarm of skeletons that might just be what she needs... a means to take care of her family... and emotional support in such fine gentlemen.

    Language:
    English
    Words:
    4,191
    Chapters:
    1/?
    Comments:
    4
    Kudos:
    28
    Bookmarks:
    7
    Hits:
    105
  6. Tags
    Summary

    Rei is a man with many secrets and is known by many names.

     

    He is the soul of Patience.

    Language:
    English
    Words:
    3,431
    Chapters:
    3/?
    Kudos:
    6
    Bookmarks:
    2
    Hits:
    27
  7. Tags
    Summary

    Being held prisoner in a shed has honestly been one of the best things to happen to you in like-ten years? Also you're pretty sure you can't leave.

    Series
    Language:
    English
    Words:
    3,019
    Chapters:
    3/3
    Comments:
    2
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    44
  8. Tags
    Language:
    English
    Words:
    3,501
    Chapters:
    10/?
    Kudos:
    13
    Hits:
    1804
  9. Tags
    Summary

    Are you up to some sin today? These two totally are!
    NSFW Underswap Papara, grown ups only!
    Updates every two weeks, usually on weekends.

    Language:
    English
    Words:
    39,447
    Chapters:
    21/?
    Comments:
    31
    Kudos:
    27
    Hits:
    970
  10. Tags
    Summary

    The Coroner's Report says that the cause of death was asphyxiation. Which means Basil was the one who had killed Mari. How can he ever face Sunny again knowing what he'd done? How can he ever face anyone?

    One night, Basil goes to sleep.
    One night, he is not who wakes up.

    (A non-linear collection of tidbits and stories from the CHRYSanthemum AU, which is your typical 'Omori but make it Basil' situation. The Omori equivalent is, of course, Chrys, which I hope isn't too confusing for anyone! Canon-typical OMORI warnings apply to this work.)

    Language:
    English
    Words:
    1,898
    Chapters:
    2/?
    Comments:
    10
    Kudos:
    16
    Bookmarks:
    2
    Hits:
    130
  11. Tags
    Summary

    Well, you know the saying, no good deed goes unpunished. While searching Mt Ebott for a missing child, you and your friends fall into the UNDERGROUND, a place full of monsters, ruled over by an angry queen who wants human souls. A place that, long ago, you yourself had been trapped in. Your choices now will affect the lives of everyone around you, and you’ll learn that the best lost and found stories are not about things, but about people.

    Language:
    English
    Words:
    13,281
    Chapters:
    12/?
    Comments:
    22
    Kudos:
    14
    Bookmarks:
    6
    Hits:
    173
  12. Tags
    Summary

    You had long forgotten what you used to be like before the war. Who you were before Sans.

    You had resigned yourself to dying like the rest of the rotting corpses on the battlefield, the glorified title of the "Judge" nothing more than another meaningless name to be forgotten like the rest. Everyone you cared about was dead and gone, and Papyrus no longer looked you in the eye anymore. You were ready for it all to end in a blaze of glory.

    You hadn't anticipated you and your brother to be caught in the crossfires of a malfunctioning machine, bringing you both to an alternate, peaceful universe with other versions of yourselves.

    We need more sans!reader fics, so I decided to take things into my own hands and make one. Check out my tumblr at 'ataintedcure' for more content!

    Language:
    English
    Words:
    43,714
    Chapters:
    11/?
    Comments:
    204
    Kudos:
    505
    Bookmarks:
    93
    Hits:
    5689
  13. Tags
    Summary

    Somewhere, somehow, they knew everything would be okay. Their soul was purple, after all.

    AKA

    A 7 foot skeleton with a box of crayons and little to no knowledge of the outside world manages to stumble upon the skeleton crew.

    Series
    Language:
    English
    Words:
    16,515
    Chapters:
    11/?
    Comments:
    56
    Kudos:
    315
    Bookmarks:
    86
    Hits:
    4406
  14. Tags
    Summary

    Starting in Underfell , you the reader is a lizard- monster who's second in command of the royal guard. Your superior The Terrible Papyrus is your crush. He's strong and cruel to those who are in his way.

    In the world of kill or be killed your crush and his brother disappears from the underground without a trace, the underground goes in a bit of chaos, your promoted.

    Language:
    English
    Words:
    52
    Chapters:
    1/1
    Comments:
    1
    Bookmarks:
    1
    Hits:
    16
  15. 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:
    221,081
    Chapters:
    44/?
    Comments:
    371
    Kudos:
    1366
    Bookmarks:
    251
    Hits:
    26253
  16. Tags
    Summary

    Sometimes life throws you a curveball. For you, your curveball was going to bed looking like a human, and waking up looking like a monster.

    A skeleton monster to be precise.

    With the barrier breaking, a large surge of magic descended on the town you live in, and transformed you overnight. Unsure what to do with you, and the others changed, you're ushered into a facility until a monster with similar magic can take you to teach you how to wield the now uncontrollable magic you've been given. After waiting in this place for four years, you'd given up hope that anyone would ever want to take you.

    What a surprise for you when you find out that someone does. A lot of someones.

    Language:
    English
    Words:
    296,338
    Chapters:
    41/?
    Comments:
    2378
    Kudos:
    2323
    Bookmarks:
    471
    Hits:
    77464
  17. Tags
    Summary

    Disoriented and emotionally frayed from decades spent in the void, W.D Gaster suddenly finds himself at the mercy of a cold and arrogant alternate self. His doppelganger promises to return him to the void once his research is complete but before he can make good on his threat, Gaster is introduced to this world’s variant of his son and he is forced to make a quick, spur of the moment decision.

    This sole act sends unforeseen ripples throughout the Multiverse and hurdles Gaster on a perilous journey across it to find his way home.

    or

    Dadster plays hopscotch across the multiverse, unintentionally and intentionally acquires children, tentatively reciprocates Grillby's feelings, engages in actual literal custody battles with copies of himself, somehow steals a Bad Sans™, narrowly avoids death at the hands of Error and somehow flies under Ink’s radar for a shocking amount of time.

    Language:
    English
    Words:
    51,250
    Chapters:
    13/?
    Comments:
    135
    Kudos:
    152
    Bookmarks:
    40
    Hits:
    2387
  18. Tags
    Summary

    After your little sister ran away, you decided to strike out on your own. Nine months later, nothing was different except for the fact you slept in your car. Living in a 1997 Honda Civic in the parking lot of your local Walmart was not ideal, but it was better than rotting away under the same roof as your mother. You could have run far away, but you were bound here. Bound by blood and obligation. There was no escaping family.

    The machine was broken, and it would never work again. It was a mistake Sans would never live down, ripping alternate versions of himself and Papyrus away from their home and into a strange new world with no way back. They moved to this town far from Ebott hoping to create something new. To plant roots, find meaning or tie themselves to this world with Papyrus and Sans following at their heels. Out of guilt or obligation, no one was sure. There wasn't anyone else but each other, after all. It’d be an awkward tango wading through guilt and resentment, but everyone was trying. Family wasn’t built overnight.

    The classic eight skeletons set up with a very heavy focus on building relationships between the characters, so prepare for the world's slowest burn.

    Language:
    English
    Words:
    30,095
    Chapters:
    10/?
    Comments:
    92
    Kudos:
    220
    Bookmarks:
    61
    Hits:
    2846
  19. Tags
    Summary

    Harry is found in a state park while hiding from his abusive relatives. A pair of skeletons take him in, leading to a very different life than what was planned...

    Language:
    English
    Words:
    21,247
    Chapters:
    8/?
    Comments:
    125
    Kudos:
    157
    Bookmarks:
    43
    Hits:
    3034
  20. Tags
    Summary

    You are a normal person.

    You wake up
    Brush your teeth
    Comb your hair
    all that jazz.

    One day, you do the same thing
    And on that same day, you don't notice that a Huge ass skeleton has fallen out of your closet.

    Amazing.

    Language:
    English
    Words:
    5,311
    Chapters:
    3/?
    Comments:
    5
    Kudos:
    50
    Bookmarks:
    15
    Hits:
    476

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