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  1. Tags
    Summary

    Snippets from a world where monsters can combine their forms and create something new--a being that fuses their powers and personality, and is stronger than either individual alone.

    But fusion is not always straightforward--not every possible combination works, and it might take special circumstances for some to consider fusing at all. And no fusion can last forever--even the best wear out after a time.

    And for all their strength, no fusion has ever been powerful enough to break the barrier.
    --
    Inspired by a post from tumblr user purblethinks/purblethinkin, and of course, fusion as presented in the show Steven Universe--but not an exact copy. I've sat on these ideas for a few years, and I think it's time to finally share them. It's a character study more than anything--it's fun to think about what two potentially very different characters would be like if they were combined. What would unite them? What would their magic be like? How do they solve problems?

    I have a lot more ideas for fusions than snippets, so who knows how long this'll end up--there's no overarching plot, each chapter is its own little story. Check chapter titles for the featured characters, and I hope you enjoy!

    Language:
    English
    Words:
    2,383
    Chapters:
    2/?
    Comments:
    15
    Kudos:
    46
    Hits:
    396
  2. Tags
    Series
    Language:
    English
    Words:
    92,920
    Chapters:
    92/?
    Kudos:
    14
    Bookmarks:
    1
    Hits:
    734
  3. Tags
    Summary

    After being forced into her role Frisk found herself locked into to what it truly meant to be a ambassador. She didn't want this. If only for a brief second she found herself wishing for Chara just to have a reason to restart it all. In the end, she had no one to blame but herself however. After all, despite his hatred for them and his usual unwillingness to agree to them, Sans always kept his promises.
    He promised her he would be happy. Upon the realization that this child was suffering in silence just as much or perhaps more than him from the events of the underground, he held firm. He would make sure they kept their happy ending as time moved forward and he would make sure she was alive to see it. That was the funny thing about hope; when you had it, it was easy to raise hell to keep it.

    Language:
    English
    Words:
    131,235
    Chapters:
    23/?
    Comments:
    62
    Kudos:
    153
    Bookmarks:
    28
    Hits:
    3956
  4. Tags
    Summary

    Once upon a time...
    A human fell underground.
    Beneath the surface, they made friends.
    Made enemies.
    Made mistakes.
    Made things right.
    After a long time, the human decided to stay, calling the underground home.
    The monsters, her family.
    One day, the underground was destroyed, but the monsters were able to escape, thanks to the human.
    For years, they have lived on the surface.
    Their story is far from over...

    Series
    Language:
    English
    Words:
    189,974
    Chapters:
    14/20
    Kudos:
    1
    Bookmarks:
    1
    Hits:
    128
  5. Tags
    Summary

    Stand up comedy by the comics and their content is you

     

    Swapfell:
    In which Papyrus is gossiping about his brother and his brother’s datemate. Which makes you and Sans more popular than Papyrus and the two of you don’t have any idea he was doing stand up comedy that was being aired worldwide.

    Underfell:
    In which Sans loves to show you off and loves to talk about you to strangers. Now you’re wondering who the fuck are these strangers and why are they trying to follow your footsteps as if you’re an influencer.

    Underswap:
    In which Papyrus lowkey brags bff goals between the two of you. Also highkey brags about the relationship goals between you and Sans.

    Undertale
    In which Sans can rely on you with coming up the most stupidest and also the most brilliant ideas. But talking about you eventually makes his own audience gravitate towards your beautiful brain that creates these ideas.

    Fellswap
    In which Papyrus does mischievous things to everyone may it be man or monster. So the both of you team up to torment his brother which is your datemate

    Series
    Language:
    English
    Words:
    11,742
    Chapters:
    38/?
    Comments:
    153
    Kudos:
    397
    Bookmarks:
    60
    Hits:
    7429
  6. Tags
    Language:
    English
    Words:
    4,914
    Chapters:
    4/100
    Collections:
    1
    Comments:
    1
    Kudos:
    2
    Bookmarks:
    1
    Hits:
    41
  7. Tags
    Summary

    When you were growing up, you didn't think you'd be living underground, falling for a living skeleton, or be a skeleton yourself, but... here you are! A camping trip gone awry has sent your life in a direction that you weren't one bit prepared for, thanks to a change in the Barrier that happened years ago, when the last human was able to leave. Being a monster and having the SOUL of one means there isn't a way out, but the more you grow used to your new life and make new companions... you doubt that's really a bad thing. Besides, can the surface say it has enchanted flowers, or sinks you need a ladder to use?

    Language:
    English
    Words:
    14,643
    Chapters:
    3/?
    Comments:
    11
    Kudos:
    50
    Bookmarks:
    13
    Hits:
    540
  8. Tags
    Summary

    A faulty Reset sends a wannabe gamer spiraling into the world of Undertale where she has only her memories of the game, her wits, and a healthy dose of sarcasm to help her survive until the end of the game. Self-Insert as Frisk. No romance except for what’s canon. Plenty of fourth-wall breaks.

    Language:
    English
    Words:
    62,614
    Chapters:
    16/41
    Comments:
    16
    Kudos:
    59
    Bookmarks:
    8
    Hits:
    1093
  9. Tags
    Summary

    Red, Edge’s brother, had been hiding away in the lab recently, messing with some sort of machine that he didn’t seem eager to tell Edge about. Edge, obviously, didn’t plan on letting this slide. 

    After yet another day of Red blocking himself in, Edge decided that he would put a stop to it.

    By breaking the door down. And nagging him, not letting Red get a word in, as he stepped closer to inspect this machine that Red kept hidden.

    “WHAT EVEN IS THIS, ANYWAYS? WHAT MAKES IT SO IMPORTANT-”

    There was a click, a snap, and a whir.

    And then Edge was gone in a flash of light.

    Series
    Language:
    English
    Words:
    9,223
    Chapters:
    4/?
    Comments:
    14
    Kudos:
    23
    Bookmarks:
    2
    Hits:
    250
  10. Tags
    Summary

    A fairly dark tale, but it gets better.
    Borrow the eyes of Reed, a depressed security guard, as she falls Underground and settles among monsters. What adventures will she live? Will she notice the glitches in the timeline before it's too late? Read and find out.

    Language:
    English
    Words:
    94,621
    Chapters:
    14/?
    Comments:
    12
    Kudos:
    33
    Bookmarks:
    7
    Hits:
    497
  11. Tags
    Summary

    *Howdy! I’m flowey! No this isn’t a roleplay, this is a story about me! I’m not a very good writer, but if you were curious how my life was before frisk fell, and after we went to the surface, then this might be of interest to you!
    *I’ll try and update this occasionally, but if im being honest i dont even know if ill get to post pacifist run. I dont remember a lot before frisk though, so maybe i will! who knows! ;p
    *another thing to note: I remember chara using they/she, frisk using they/he, and most monsters using they/them along with their canon pronouns.

    Language:
    English
    Words:
    1,502
    Chapters:
    1/1
    Kudos:
    2
    Hits:
    7
  12. Tags
    Summary

    Living, in Chara's opinion, is highly overrated. Humanity seems determined to prove them right.

    Language:
    English
    Words:
    1,589
    Chapters:
    3/?
    Comments:
    7
    Kudos:
    9
    Bookmarks:
    2
    Hits:
    65
  13. Tags
    Summary

    Eva was only 13 when monsters emerged from the Underground and the world turned upside down. Since that day, she’s made it her life’s mission to study them and their biology. When she’s accepted into the one university in the country that monsters can attend, she’s given her opportunity. As Eva starts to get up close and personal with certain lizard and skeleton monsters, she has to decide what’s more important: scientific discovery or friendship (or something more than friendship?).

    Language:
    English
    Words:
    2,763
    Chapters:
    1/?
    Kudos:
    1
    Hits:
    8
  14. Tags
    Summary

    What's the point of falling in love if at any moment your world can be reset and everything ripped away? That's how Red feels, anyway.

    Language:
    English
    Words:
    34,704
    Chapters:
    12/?
    Comments:
    113
    Kudos:
    117
    Bookmarks:
    17
    Hits:
    2301
  15. Tags
    Summary

    Frisk did it. He killed everyone he knew and loved. Everyone was either dust or in hiding, thanks to him. When all was said and done, he traded his SOUL, the very culmination of his being, to bring back the world.

    But there was an interference with the trade.

    Will Frisk be able to complete this new timeline, even when cut off from the RESET?... Even when he is no longer human, but a skeleton instead?

    Arc I - Nameless: Chapters 1 - 21
    Arc II - Knowledge: Chapters 22 - 42
    Arc III - Evacuation: Chapters 43 -??

    Language:
    English
    Words:
    72,969
    Chapters:
    51/?
    Comments:
    35
    Kudos:
    194
    Bookmarks:
    30
    Hits:
    4402
  16. Tags
    Summary

    After the true pacifist ending, everything changes when sans and frisk go back to the underground when no one's looking and bring someone back. There's also an entity who has very powerful magic lurking around,who takes the form of a 13 year old boy.

    Language:
    English
    Words:
    1,215
    Chapters:
    1/1
    Hits:
    0
  17. Tags
    Summary

    It's Muffet's goal to become Queen of the Pirates! In a world of Pirates vs Government in the year of 1512, The Golden Age of Pirates! With spiritual power, Soul Power, and with the mysterious power of Devil Fruits; Muffet strives to get a crew to find the UnderPiece! Who will stop her, who will join her, and who will die along the way? Find out for yourself! (Original World One Piece AU)

    Language:
    English
    Words:
    264,131
    Chapters:
    55/1000
    Comments:
    14
    Kudos:
    21
    Bookmarks:
    3
    Hits:
    856
  18. Tags
    Summary

    After two-thousand years, an unexpected consequence of the Human-Monster War emerges with a seductive promise. [Sequel to Frisk: God of the World / New Life]

    Series
    Language:
    English
    Words:
    97,963
    Chapters:
    12/12
    Comments:
    39
    Kudos:
    89
    Bookmarks:
    4
    Hits:
    3198
  19. Tags
    Summary

    Papyrus would give anything and everything for his friends.

    What he did not anticipate, however, were the enemies he made along the way.

    Papyrus remembers things that he should not. Conflicting memories that obfuscate the truth.

    But as he swiftly learns, there are simply some questions that should not be answered.

    Series
    Language:
    English
    Words:
    46,506
    Chapters:
    12/?
    Comments:
    46
    Kudos:
    58
    Bookmarks:
    17
    Hits:
    1278
  20. Tags
    Summary

    A place to collect extra works that fit into the Essenceswap AU, but not the story of Essenceswap as it's being posted here (https://archiveofourown.org/works/17535503). Extra/cut chapters, other POVs, prequel chapters, and anything else I think of!

    Language:
    English
    Words:
    7,723
    Chapters:
    4/4
    Collections:
    1
    Comments:
    2
    Kudos:
    10
    Bookmarks:
    1
    Hits:
    168

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