1 - 20 of 47 Works in Alternate Universe - Monsters Weren't Sealed Underground

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  1. Tags
    Summary

    Ebott City, 191X. Fresh from university, Doctor Sans Gaster is ready to become an alienist. He studied hard, knows his facts, but lacks the experience that should go with it. Now working as an apprentice at Ebott City’s lunatic asylum, things are not going as he imagined. For what is insanity? What is madness? What is good? What is evil? Since meeting Frisk, everything he knew changes.

    Language:
    English
    Words:
    32,152
    Chapters:
    9/16
    Comments:
    2
    Kudos:
    51
    Bookmarks:
    4
    Hits:
    556
  2. Tags
    Summary

    your life is... strange, for a lack of better phrasing. you clearly weren't thinking anything through when you made your past decisions. that's probably how you ended up here.

    aka, comic goes through a lot in one month (or something like that).

    (phyre decides to do a whumptober challenge.)

    Language:
    English
    Words:
    6,688
    Chapters:
    8/31
    Comments:
    2
    Kudos:
    15
    Hits:
    135
  3. Tags
    Summary

    Mermaids are the social butterflies of the sea, living in sunny, shallow water together with the rest of their school. On the other end of the spectrum, meroctopuses are violent, antisocial fucks who like the cold and the dark, and who basically kill any competing predator they see.

    But they aren’t stupid.

    Red is proof of that, using his traps to hunt for food and saving his energy to ward off predators. So, how does he react when he finds the laziest creature in the ocean stealing his catch?

    Bribe him with more food in exchange for peaceful company, of course! The ocean is fucking lonely for giant predatory mer!

    Language:
    English
    Words:
    88,197
    Chapters:
    28/?
    Comments:
    819
    Kudos:
    643
    Bookmarks:
    117
    Hits:
    7935
  4. Tags
    Summary

    A few shorter chapters that show a glimpse into the lives of Sans and Papyrus before the events of Underbelly, focusing on all the things that went wrong, but made them into who they are.

    Please, please, please mind the tags. You don't need to read these for Underbelly to make sense, they're just for insight.

    Series
    Language:
    English
    Words:
    1,443
    Chapters:
    1/3
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    24
  5. Tags
    Summary

    Blue gets himself in a sticky situation a la 127 Hours. Will he be rescued before its too late?

    Language:
    English
    Words:
    930
    Chapters:
    1/5
    Comments:
    3
    Kudos:
    12
    Bookmarks:
    2
    Hits:
    107
  6. Tags
    Summary

    At the edge of the Monster Kingdom, lies the cottage of the Queen,
    Who is visited by a hooded girl, her face never seen.

    One day, while off the beaten path, she met a creature of bone,
    They told her he was a vicious wolf, but she could see he was alone.

    As the years went by, their bond grew and grew,
    'Till she told him that she loved him, and he confessed too.

    One day a human prince, power he wished to find,
    Stole away the hooded girl, so he could have a bride.

    So the wolf promised his Queen, soon after the girl was lost,
    That he'd bring back the hooded girl no matter what the cost.

    Language:
    English
    Words:
    5,231
    Chapters:
    4/?
    Comments:
    20
    Kudos:
    114
    Bookmarks:
    15
    Hits:
    1091
  7. Tags
    Summary

    It's a bit like Undertale, in that the characters are the same, and have all the same personalities and stuff. Except the monsters were never trapped underground. They work with humans, and in this particular case, they work with humans in a sturdy yet shitty little mining town.

    The AU that no one asked for - and that is so obscure "Mining Town" AU doesn't even generally exist as a tag on AO3 across any fandom
    Let me be the first to break that one in, shall we?

    Language:
    English
    Words:
    21,460
    Chapters:
    9/?
    Comments:
    37
    Kudos:
    127
    Bookmarks:
    13
    Hits:
    865
  8. Tags
    Summary

    Just Dumb drabbles all around that are too short to post on their own

    Language:
    English
    Words:
    5,522
    Chapters:
    10/?
    Comments:
    9
    Kudos:
    27
    Hits:
    224
  9. Tags
    Summary

    The city of Ebott was not one many humans resided in. It belonged solely to the Monsters, and was known as the Underground. The Dreemurr family had overseen the running of their cartel for decades, building themselves up as a fearsome group. There weren't many human families that even came close to the power and wealth they held, nor the formidable soldiers. Namely their two best hit-men; The Judge and The Executioner, known affectionately to most as the 'Bone Brothers'.

    Of course, many had tried and subsequently failed to stake claim to the long held throne. Things like that were usually swept under the rug fairly easily, but something about these latest challengers..

    Series
    Language:
    English
    Words:
    52,360
    Chapters:
    13/?
    Comments:
    74
    Kudos:
    332
    Bookmarks:
    79
    Hits:
    3726
  10. Tags
    Summary

    Sans gets a Bitty just like his worried brother asked. That should be the end of his magical creature adoptions right? Not so much, more creatures keep showing up! All he wants is some peace and quiet. Little does he know these creatures won't leave so easily.

    Language:
    English
    Words:
    35,407
    Chapters:
    17/17
    Comments:
    151
    Kudos:
    441
    Bookmarks:
    61
    Hits:
    4176
  11. Tags
    Summary

    In a world corrupted by humans, monsters rose from the ashes of their abused animal ancestors. A war hard-fought on both sides ended in a draw, and they came to a compromised that changed the world forever. In modern times, they live side-by-side in peace; the unrest that went with the earliest days of the compromise were gone, and humanity has learned to live with their new neighbors over the generations.

    Just because there's laws trying to limit them, however, doesn't mean monsters won't break them.

    Language:
    English
    Words:
    9,447
    Chapters:
    2/?
    Comments:
    12
    Kudos:
    52
    Bookmarks:
    8
    Hits:
    409
  12. Tags
    Summary

    Space travel could be incredibly boring truth be told.

    At least Mutt has found himself some entertainment in the form of two cute twins that have no idea they are caught in his cross hairs.

    Language:
    English
    Words:
    4,478
    Chapters:
    1/1
    Comments:
    6
    Kudos:
    66
    Bookmarks:
    9
    Hits:
    1089
  13. Tags
    Summary

    The streets were quiet in the Under-City, as it was still barely dawn. The slowly brightening sky casted wisps of oranges and pinks over the cobblestones, and stained the window panes of the sleepy town, a telltale sign of the quickly approaching sunrise. At first, this sight would appear quite serene, maybe even tranquil to the ignorant outsider, or the casual passerby. Frisk new better,however, then to trust the peaceful illusion presented by the empty streets of the Under- City as she stuck to the shadows of the back alley ways, refusing to so much as touch the light of the new dawn. This was Ebbot after all, and no amount of peaceful sunrises could bathe away the true grime of the Under- City that existed in the form of organized crime and corruption which clung to Ebbot like thick black tar. Though it might look pretty from a distance life was hard here, and making an honest living was a concept really only found in fairy tales.

    Language:
    English
    Words:
    431,798
    Chapters:
    80/?
    Comments:
    2442
    Kudos:
    3293
    Bookmarks:
    306
    Hits:
    56984
  14. Tags
    Summary

    This universe shouldn't exist, but it does. You shouldn't be in it, but you are. Life is just unpredictable like that, no matter how infuriating it can be.

    In a universe where monsters won the war, humans were hunted down and either killed or tamed. They were then split into the two classes of pets and workers. Workers do manual labour and pets are basically what they sound like. You've ended up here as a pet. Not by choice. Things happened and you ended up in an animal shelter where you've gained the attention of four short skeletons. You have no idea what they want from you, and you're definitely not sure you're ready, but life won't wait for you to be ready. It's time to see what they have in store for you.

    Series
    • Part 1 of PAP
    Language:
    English
    Words:
    132,261
    Chapters:
    34/?
    Comments:
    258
    Kudos:
    666
    Bookmarks:
    72
    Hits:
    8989
  15. Tags
    Summary

    Just some drabbles with Undertale and Underswap Sans, motivated by Elegantfolly who complained long ago that there isn't enough appreciation for this ship

    Language:
    English
    Words:
    4,603
    Chapters:
    6/?
    Kudos:
    32
    Bookmarks:
    2
    Hits:
    321
  16. Tags
    Summary

    What happens when a human soul stays after death, plus a curious scientist, PLUS a lab filled with all the necessities to do experiments on said human soul? Bad times. Oh, yeah. Here's the kicker, the Human soul used is someone very close to a beloved skeleton.

     

    I'm like trash at summaries.

    Original Title was: Tale As Old As Time.

    Language:
    English
    Words:
    53,276
    Chapters:
    23/?
    Comments:
    48
    Kudos:
    150
    Bookmarks:
    19
    Hits:
    2896
  17. Tags
    Summary

    Sans is a veterinarian working at an aquatic animal rescue and rehabilitation center, though due to their facilities they sometimes end up acting as an ER for monsters of a more watery persuasion. So when a monster rarely seen on the ocean's surface is found injured and insensible, where else would they be taken?

    Series
    Language:
    English
    Words:
    2,533
    Chapters:
    1/1
    Comments:
    40
    Kudos:
    133
    Bookmarks:
    22
    Hits:
    699
  18. Tags
    Summary

    The monsters and the humans are all above ground. The lands are split into three different factions. Monster, Mage, Human. Humans are allowed to live in any of the three factions. Monsters and Mages must ask the respected kings and queens to live anywhere other than their faction. Some monsters and mages give up their faction and roam the streets as merchants. There was one other faction, the Elemental Mages. In fear of their power they were killed to near extinction. You are one of the last and hides your magic to stay alive.

    Updates Once a Month~

    Language:
    English
    Words:
    20,621
    Chapters:
    8/?
    Comments:
    71
    Kudos:
    376
    Bookmarks:
    79
    Hits:
    3570
  19. Tags
    Summary

    Sometimes you just want to watch your OTP meet and fall in love over and over and over again. A collection of oneshots of Sans and Grillby meeting for the first time. Rather than clog the tags up, detailed tagging and descriptions in each chapter.

    Language:
    English
    Words:
    14,537
    Chapters:
    9/?
    Collections:
    1
    Comments:
    84
    Kudos:
    152
    Bookmarks:
    16
    Hits:
    1165
  20. Tags
    Summary

    What happens if seven demons, each of them representing one of the Seven Sins, are bored and want to settle their long argument about which of them is the best? They make a bet of course, one where they can show their true power!

    aka: they decide to harass one mortal until they succumb to one of the Sins presented to them, declaring that demon with that Sin the true winner and the strongest of Sins. In another word, Slim is about to have a bad time, or at least that's what the demons think, and not that this story will be half of slice of life moments, with occasional dark tones.

    Language:
    English
    Words:
    5,571
    Chapters:
    1/43
    Comments:
    9
    Kudos:
    10
    Bookmarks:
    3
    Hits:
    89

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