1 - 20 of 3079 Works in Alternate Universe - Underswap (Undertale)

Pages Navigation

Listing Works

  1. Tags
    Summary

    “What, suddenly I’m in the wrong for defending myself?”

    Timelines, timelines, timelines; it’s a way for someone to go insane, that’s for sure. Good thing that you’re NOT insane (and rather, it’s someone else that needs the checking). It’s a shame that you remember what happened in your past life—you’d like to not remember those events.

    Language:
    English
    Words:
    5,442
    Chapters:
    1/?
    Comments:
    9
    Kudos:
    28
    Bookmarks:
    11
    Hits:
    94
  2. Tags
    Summary

    A collection of inane nonsense (ranging from Error being reincarnated as Palette to Dust finding a new love for the color pink) circling around the many AUs and Multiverses of the Undertale world. Some stories will be connected; Others will be random one-shots.

    Stop by and see what treasures, or horrors, you can find.

    Series
    Language:
    English
    Words:
    160,331
    Chapters:
    213/?
    Comments:
    2297
    Kudos:
    1209
    Bookmarks:
    105
    Hits:
    37797
  3. Tags
    Summary

    ~Ava’s Guide to Invading the Multiverse~
    Step One - Go Fishing

    Language:
    English
    Words:
    311,435
    Chapters:
    110/?
    Comments:
    2864
    Kudos:
    1685
    Bookmarks:
    206
    Hits:
    37177
  4. Tags
    Summary

    I was in a silly goofy mood and decided to make profiles for a swap AU fic that I wanna work on. I decided to post the profiles here as I make them. These are the Hunters as survivors

    Language:
    English
    Words:
    2,750
    Chapters:
    6/25
    Comments:
    1
    Kudos:
    10
    Hits:
    110
  5. Tags
    Summary

    Once Milord was satisfied, Mutt finally gets to meet his alternative counterparts. In doing so, he meets someone tall, dark and actually interested in him? its unknown territory for him but luckily he's got a good guide.

    Language:
    English
    Words:
    4,420
    Chapters:
    2/?
    Comments:
    7
    Kudos:
    41
    Bookmarks:
    5
    Hits:
    374
  6. 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:
    15,773
    Chapters:
    15/?
    Comments:
    32
    Kudos:
    33
    Bookmarks:
    9
    Hits:
    460
  7. Tags
    Summary

    Sans was so in his head that the resets would start back again, he didn't want to even try. Papyrus put in work to convince Sans that he needed to come to the surface with him, and not continue staying in the underground. Sans agreed to pick out a home with his brother, and began packing his things.

    With only a week left, Sans decided to try pulling his older brother back with the machine one last time, only to have to watch it sputter and stop.
    Sans gave up and packed his stuff, ready and moving out to stay with undyne until their new home was bought.
    His life and a few others really went out of whack because of the machines malfunction, with his sudden influx of brothers and the soulmate bonds that were slowly making themselfs known.

    Even after settling the chaos, shit still hits the fan every time he gets done untangling one mess.

    And the woman that is helping his strange family isn't making anything easier by making things easier!

    Language:
    English
    Words:
    65,599
    Chapters:
    10/?
    Comments:
    124
    Kudos:
    323
    Bookmarks:
    99
    Hits:
    8374
  8. 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:
    103,021
    Chapters:
    13/?
    Comments:
    142
    Kudos:
    195
    Bookmarks:
    56
    Hits:
    4409
  9. 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:
    51,513
    Chapters:
    20/?
    Comments:
    11
    Kudos:
    216
    Bookmarks:
    18
    Hits:
    6950
  10. Tags
    Summary

    You hate monsters.

    Because of some of the things you’ve heard, and simply because of the way they all seem to dislike you, you hate them. They could kill you in an instant, and the idea persistently haunts you.

    But how can you ignore this fact when they’re suddenly everywhere around you? They’ve infiltrated your workplace, your favorite coffee shop, and you might not know it at first, but a certain few have even started to work their way into your life.

    Language:
    English
    Words:
    4,724
    Chapters:
    1/?
    Comments:
    3
    Kudos:
    22
    Bookmarks:
    6
    Hits:
    164
  11. Tags
    Summary

    You didn't know what eating those people could do to you. You didn't know how falling into the underground would change you. You can't bring yourself to regret it, either way.

     

    Series
    Language:
    English
    Words:
    26,060
    Chapters:
    15/?
    Comments:
    189
    Kudos:
    562
    Bookmarks:
    110
    Hits:
    7225
  12. Tags
    Summary

    Hello there Reader! Your name is Dee! And you have just moved back to your hometown of Ebott! Though after 17 years it sure looks different! As you return to your beloved hometown, now a capable 24 year old human being, you can't seem to shake the chill of your past and the effects it's having on your mental state. Oh! But maybe those nice skeleton monsters can help chase away these pesky memories.

    *Reader is an AFAB She/Them. Not your cup of tea then move on. :)

    **Updates are ever Friday or Sunday at 5PM EST!

    Language:
    English
    Words:
    153,585
    Chapters:
    48/?
    Comments:
    157
    Kudos:
    259
    Bookmarks:
    69
    Hits:
    12433
  13. Tags
    Summary

    Emira, Edric, and Amity are tired of their abusive, homophobic, evil parents, so they run away. When their parents are close behind, they decide to hide in an abandoned shack. To their surprise, they end up in a dimension full of witches, demons, magic, and, for Amity, a beautiful tan skinned witch named Luz.

    Language:
    English
    Words:
    32,155
    Chapters:
    37/38
    Comments:
    198
    Kudos:
    242
    Bookmarks:
    29
    Hits:
    9471
  14. Tags
    Summary

    Want to sex up a skeleton...again? Sure you do! Come back on in and let's get boning!

    -

    Prompt fills for Kinktober 2019, will contain the following AUs: UT classic, US, UF, SF, and HT

    If you like your kink with a side of feels, you're in the right place!

    Series
    Language:
    English
    Words:
    24,947
    Chapters:
    25/31
    Comments:
    237
    Kudos:
    1349
    Bookmarks:
    127
    Hits:
    31767
  15. Tags
    Summary

    Amity Blight just wanted to be a normal human girl, not the daughter of the richest couple in Connecticut, weighed down by her Mother’s expectations. Chasing after an owl that stole one of her only outlets from that life leads her to the Boiling Isles, where she’s pretty sure she’s forever lost her chance to be normal, but she supposes she can handle being weird instead.

    Or, a Swap Fic where Amity is the Human, and Luz is the Witch.

    Humor, drama, fluff, and a considerable amount of changes to the story as we know it.

    Check out the TVTropes page!

    Language:
    English
    Words:
    449,587
    Chapters:
    43/43
    Collections:
    2
    Comments:
    1159
    Kudos:
    955
    Bookmarks:
    198
    Hits:
    56301
  16. Tags
    Summary

    Fresh is Admin of the Multiverse!? This can't end well ... or can it?

    This is an alternate universe - er, multiverse - where Fresh is responsible for the monitoring and disciplining of Players and Hackers as well as hunting down and eradicating any virus or external threat to the multiverses balance systems.

    When not doing his job he's causing mass confusion and chaos with his radical pranks across the multiverse ... and with the power of Admin, these pranks can get pretty weird.

    Welcome to AVFreshVerse (sure - let's call it that)
    ***
    Feel free to give suggestions in the comments for this silly little idea of mine XD

    Language:
    English
    Words:
    112,564
    Chapters:
    59/?
    Comments:
    556
    Kudos:
    558
    Bookmarks:
    94
    Hits:
    12588
  17. Tags
    Summary

    Then I see them. The Seventeens. While the rest of us at the bottom, The Seventeens float above it all. They’re at the top of the food chain.

    Kurt Kelly. He’s the quarterback for our school team. He’s not the brightest of the bunch but can still be a prick.

    Ram Sweeny. He’s also on the football team, but plays as linebacker. He really has no discernible personality, but rumor has it that his dad paid for his chin augmentation.

    Then there's Jason “JD” Dean, the almighty.

    He is a mythic bitch.

    What happens if The Heathers, weren't the Heathers?
    ----------------------------------------------
    Tries to update very Friday, Saturday or Sunday at 5:00 PM EST
    **REPOST**

    Language:
    English
    Words:
    3,313
    Chapters:
    3/?
    Comments:
    10
    Kudos:
    29
    Bookmarks:
    3
    Hits:
    348
  18. Tags
    Summary

    It’s total drama, but the characters have swapped personalities, well more like took aspects of their personalities and mix them together. Eh I’m still calling it a swap au none the less, Hope you enjoy.

    Series
    Language:
    English
    Words:
    4,527
    Chapters:
    1/27
    Comments:
    2
    Kudos:
    11
    Hits:
    147
  19. Tags
    Summary

    Sammy finds himself nestled deep in thick Ink as he begins his journey into Act One of the Play. He finds that a "certain someone" has rearranged a few things, and is sent consequentially on a journey unlike any he has gone thru before with the help of a series of mysterious "cue cards", and axe, and enough spite to roast a turkey.

    Language:
    English
    Words:
    8,142
    Chapters:
    1/38
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    28
  20. Tags
    Summary

    Determination is one of the strongest things in the whole world that can allow you to mess with the time itself. But what if somewhere exists counter to such power? Somewhat... Even more dangerous than it.

    (P.S. This fanfiction is about post-genocide Storyshift with new human in it. Hope you'll like it since english - not my primary language. Also you're free to think that MC = Reader if you like such a thing, but there will be no "Y/n" in it)

    Language:
    English
    Words:
    128,245
    Chapters:
    58/?
    Comments:
    8
    Kudos:
    38
    Bookmarks:
    1
    Hits:
    1197

Filters

Filter results:
Submit

Include

?
Include Ratings
Include Warnings
Include Categories
Include Fandoms
Include Characters
Include Relationships
Include Additional Tags

Exclude

?
Exclude Ratings
Exclude Warnings
Exclude Categories
Exclude Fandoms
Exclude Characters
Exclude Relationships
Exclude Additional Tags

More Options

Crossovers
Completion Status
Word Count
Date Updated
Submit

Clear Filters

Pages Navigation