1 - 20 of 311 Works in Alternate Universe - Underlust (Undertale)

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  1. Tags
    Summary

    She wanted nothing more to be at peace, to be "safe" finally but she never could because her heart was too big for her own good. Gave everything to everyone until she was beyond repair...then one day, "they" found her broken.

    Language:
    English
    Words:
    82,087
    Chapters:
    54/?
    Comments:
    378
    Kudos:
    245
    Bookmarks:
    45
    Hits:
    7404
  2. Tags
    Summary

    It's easy to get blinded by your success when you're wearing rose colored glasses. But after they're ripped off and stomped on, you realize you're lost in the maze while everyone else walks out scot free. An eccentric group of skeletons, however, believe you deserve better than that.

    [NO LONGER ON HIATUS WITH UPDATED SUMMARY!]

    Language:
    English
    Words:
    113,343
    Chapters:
    20/?
    Comments:
    152
    Kudos:
    377
    Bookmarks:
    98
    Hits:
    12926
  3. Tags
    Summary

    What if you also got into an otome game that you recently passed? So you don't know either. God, you're not even the protagonist, but just a background character who flashed through the story a couple of times!
    "... Although, it's even better..." - you thought. After all, it's better for you to watch everything than to participate in a love drama.
    However, things don't always go the way you want them to. And now love interests are sticking to you
    "Leave me alone! Go to the protagonist!"
    "Baby, we only need you."
    What's wrong with this game?

    Language:
    English
    Words:
    18,194
    Chapters:
    10/?
    Comments:
    144
    Kudos:
    203
    Bookmarks:
    51
    Hits:
    3853
  4. Tags
    Summary

    Deep into the city Ebott, just past the entrance trails to the mountain, there is an abandoned house. Though, is it abandon, or just gave up on?

    Most locals of Ebott know of the three-story home with a beautiful Victorian build. The gardens that seem to remain in a constant state of perfection, the vines that creep up walls and through the one broken window out front- said to have been broken during what led to the haunting… Ebott’s very own haunted house.

    That’s where you come in, SPIRIT, you are the haunter of Ebott’s spooky stories and the original crypted before monsters broke to the surface.

    ( based of my {monster?} sona, spirit. but this is an /reader. you don't remember your name or life, so you are just called Spirit. )

    Language:
    English
    Words:
    11,172
    Chapters:
    7/?
    Comments:
    70
    Kudos:
    111
    Bookmarks:
    27
    Hits:
    750
  5. Tags
    Summary

    5 years
    The past 5 years my entire life has changed. Whether it was when I sat on my couch with my parents as we watched the news. "Monsters exist and they lived under the mountain for an unknown amount of time!"

    When I graduated from collage the same year monsters were allowed schooling. Or popular monsters becoming actors and partaking in films.

    Or working as a waitress for a spider monster who is the sweetest women I've met. Then meeting her brother who soon became my husband.

    But the worst thing I've seen happen is watch my husband get shot on a hit and run, and watch his body turn to dust. All well I was pregnant with his child.

    It was a hard time after that. But I managed. I managed it all well taking care of a newborn.

    Almost a year later though, I had moved in with a group of 6 skeletons at the least with my daughter. Oh boy has my life gone become crazy.

    Language:
    English
    Words:
    38,452
    Chapters:
    14/?
    Comments:
    55
    Kudos:
    429
    Bookmarks:
    109
    Hits:
    7330
  6. Tags
    Summary

    A kiss after a declaration such as this is exactly what one needs.

    ///

    Rated TEEN for discussed sexual content.

    Series
    Language:
    English
    Words:
    588
    Chapters:
    1/1
    Kudos:
    6
    Hits:
    37
  7. Tags
    Summary

    An alternative universe of Deltarune set on the underlust timeline. This universe was created in the end of a genocide route after lust!frisk sold their soul. Many things have changed but the lust curse is still out there affecting all older monsters. To counter this threat the government of a city instaured a puritan kind of religion, mixing elements of the monster religion with puritan christianity. since the concept of sin didn't exist in their religion the monsters of Hometown begin to be paranoid, because now they have to pay attention to every thing they do so they don't fall in sin and don't be affected by the lust curse. In this scenario a boy named kris finds himself possesed by the demon of lust claiming to be his own soul,What Will the boy do?

    I'm also helping mike_isolado with grammar a bit, but feel free to ignore me--- VoidBlood

    Language:
    English
    Words:
    23,748
    Chapters:
    10/?
    Comments:
    8
    Kudos:
    17
    Bookmarks:
    1
    Hits:
    516
  8. Tags
    Summary

    Mama was always there.

    When they were sad, cold, hungry, scared...

    She was there. Especially after he left them.

    Left her.

    And that made him mad. In his fit of rage, he also sent them to another dimension.

    "Oops... sorry Mama."

    ----

    When babybones Sans has a temper tantrum that sends his family to another dimension.

    Language:
    English
    Words:
    1,420
    Chapters:
    2/?
    Kudos:
    27
    Bookmarks:
    5
    Hits:
    133
  9. Tags
    Summary

    A bunch of Babybones- and some adult boys- shorts with Momma Reader and different AU Sans and Papyrus!

    Series
    Language:
    English
    Words:
    19,012
    Chapters:
    20/20
    Collections:
    2
    Comments:
    46
    Kudos:
    556
    Bookmarks:
    76
    Hits:
    8567
  10. Tags
    Summary

    Just a bunch of Sans x Sans oneshots. These are not for people who don't like them. They have rape, fluff, angst, lemons, etc. If you don't like it, don't read it.

    I don't condone any of the actions in this book nor encourage or suggest them.

    I'm NightKiller0185 on Wattpad. My book is pretty much called the same thing.

    Language:
    English
    Words:
    66,466
    Chapters:
    24/?
    Comments:
    22
    Kudos:
    254
    Bookmarks:
    21
    Hits:
    9040
  11. Tags
    Summary

    You used to play a dating sim called Lonely Souls.

    You stopped when you had your son.

    Why’d you come back?

    (Enter the world of Lonely Souls with your son by your side.)

    Suggested you read ‘Mama’ first.

    Series
    Language:
    English
    Words:
    26,642
    Chapters:
    15/?
    Comments:
    303
    Kudos:
    167
    Bookmarks:
    50
    Hits:
    3234
  12. Tags
    Summary

    Frisk ends up falling Underground after an unfortunate situation, but now...will she survive?

    ...or at least handle all these unholy monsters? Stars help her.

     

     

    This is my AU. Underlust NT is a completely rewritten and redesigned Underlust AU that I (Naturethiga)created.
    This au is meant to be a safe and consensual world with more LGBTQ+ elements thrown into the mix. So be aware that since this is written by me, I have my own headcanons here too
    But since I want to make this a good story... CRITICISM AND SUGGESTIONS ARE ACCEPTED!
    I want this to feel like a community project of sorts since it's still in the beginning stages, with only a few concepts I have already established. So your help would be amazing!!

    Language:
    English
    Words:
    1,295
    Chapters:
    1/?
    Comments:
    1
    Kudos:
    4
    Hits:
    30
  13. Tags
    Language:
    English
    Words:
    1,587
    Chapters:
    5/?
    Comments:
    4
    Kudos:
    4
    Hits:
    338
  14. Tags
    Summary

    You would assume Y/N is just a regular waitress, but is she really? Pfft nah, nobodys normal in this book! I mean I have you seen the title? its the bad guys for crying out loud!! who knows what random shit they're gonna get up to! are you interested yet? well why wouldn't you be?! Have a read for yourself and tell me what you think!

    Language:
    English
    Words:
    57,458
    Chapters:
    32/?
    Comments:
    3
    Kudos:
    36
    Bookmarks:
    10
    Hits:
    1678
  15. Tags
    Summary

    You find yourself out of a job, on the verge of getting kicked out of your apartment because you can't pay the rent and no where to go. Until your newest skeleton friend suggests you move in with them and their cousins until you get back on your feet again. You didn't expect to like living with this many people at once so much though...

    Language:
    English
    Words:
    226,216
    Chapters:
    57/?
    Collections:
    1
    Comments:
    1247
    Kudos:
    2928
    Bookmarks:
    519
    Hits:
    82108
  16. Tags
    Summary

    The ship (Louter) is something I've been aching to write about ever since my friend and I created it around 2018. Thanks to the friend in question, PaintedImagery, for editing and beta-reading this.
    This is just a pre-relationship exploration of a world where the aus are conjoined on the surface. It features Lust, whom I explore as a character, and Outer at the end. I do have an idea of a future for this story, but I'm leaving it as a one shot for the moment.

    Language:
    English
    Words:
    3,014
    Chapters:
    1/1
    Kudos:
    4
    Hits:
    28
  17. Tags
    Summary

    "Don't be surprised if this doesn't end the way you want it to."

    "Oh do not worry, it will. This is what brought them here, and if it wants them back, who am I to stop it?"

    He only worries for their safety, but who is he to judge the other's decision?

    A malfunction of this magnitude is improbable, but not impossible:
    That was when they saw it, two beings, one larger and one smaller. While the machine had once spat out skeletons on a regular basis, it was deemed derelict after the last two came through over 6 months ago. It seemed other universes lacked the means or the will to travel elsewhere, thus it was shut off for good; the safety of the skeletons and the city was considered more important than the possibility that untamable beings traveled through. How could it have produced two more if it was unplugged? And why had it exploded in the first place, it was unpowered! All of their minds filled with fear, curiosity, and gloom.

    Language:
    English
    Words:
    39,303
    Chapters:
    15/?
    Comments:
    7
    Kudos:
    13
    Bookmarks:
    4
    Hits:
    713
  18. Tags
    Summary

    You are in a club at a friend's insistence and escape the crowd after a riot happens, not realising you leave with a new friend.

    Language:
    English
    Words:
    52,763
    Chapters:
    49/49
    Comments:
    34
    Kudos:
    152
    Bookmarks:
    26
    Hits:
    5243
  19. Tags
    Summary

    You've hit rock bottom, or perhaps hell's bottom. You are now surrounded by hordes of lustful monsters that crave to woo humans into their beds, for the chance to take their virginity is sought after, like a one of a kind rare gem.

    Though the creatures of the underground treat you with respect, like a royal princess, it doesn't stop them from trying to take advantage of you, nor being bribed or sweet talked into submission. The worst of them is a tall lanky skeleton who laughs oddly. He vows to have you one way or another, even if it kills him. He has to, if he wants to reach his life long dream. But he wants his cake and eat it too, for he soon after wants you to fall for him as well.

    What are you to do? Is there any chance of escape? What risk do you take? And how far are you from becoming a fallen human? Just what will become of you then?

    Language:
    English
    Words:
    25,207
    Chapters:
    6/?
    Comments:
    60
    Kudos:
    359
    Bookmarks:
    72
    Hits:
    6770
  20. Tags
    Summary

    Barista by day and DJ by night (Gigs only). Sadly, that’s not enough for you to get by and you are put out of your home suddenly. You have nowhere to go but you get picked up by a regular customer that you see every day. He offers you a helping hand and you accept. Moving into his place until you’re back on your feet. But you weren’t expecting to live in a full house of skeleton monsters.

    Language:
    English
    Words:
    112,209
    Chapters:
    14/?
    Comments:
    150
    Kudos:
    223
    Bookmarks:
    58
    Hits:
    5454

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