1 - 20 of 42 Bookmarked Items in Alternate Universe - Altertale (Undertale)

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  1. *

    Resonance by

    Fandoms: Undertale (Video Game)  

    30 Jun 2018

    Tags
    Summary

    A story of Undertale AU self-indulgence.

    LOVE, love, smut, angst, edginess, and self reflection. A story about teamwork and friendship, with lots of puns, ships, and feels. Full of head-canons what might deviate from the original story and/or AU ideas.

    Worlds collide when shortcuts resonate. Will they be able to find their way home?

    Series
    Language:
    English
    Words:
    241,287
    Chapters:
    55/55
    Collections:
    1
    Comments:
    1,842
    Kudos:
    792
    Bookmarks:
    146
    Hits:
    25,136

  2. 18

    Forgotten Doodles by

    Fandom: Undertale (Video Game)

    16 Feb 2025

    Words:
    11,076
    Works:
    10
    Bookmarks:
    18

  3. 34

    Yandecember 2019 by

    Fandoms: Undertale  

    24 May 2020

    Tags
    Summary

    A challenge that took place in December of 2019 with Yandere as its theme.

     

    Lingeringchaos and ZionKilse's Yandecember

    Series
    Language:
    English
    Words:
    23,852
    Chapters:
    25/25
    Comments:
    15
    Kudos:
    293
    Bookmarks:
    34
    Hits:
    5,618

  4. 9

    Clean Up by

    Fandoms: Undertale (Video Game)  

    10 Jul 2019

    Tags
    Summary

    Asgore finds something very strange about his sister's behavior. Once he realizes the cause, it's so obvious. But he's rooting for her.

    Language:
    English
    Words:
    1,791
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    69
    Bookmarks:
    9
    Hits:
    640

  5. *

    It Started As A Tug by

    Fandoms: Undertale (Video Game)  

    20 Mar 2025

    Tags
    Summary

    It’s been eight months since your skeletal roomies and protectors disappeared and you’re pretty sure they’re dead.

    Then, a tugging sensation starts in your chest and it pulls you to another world, with other versions of your friends.

    …You might be a little too calm about this.

    14.05.25 - I’m editing chapters 1-9. Chapters currently edited: 2.
    I recommend reading these edited chapters. This isn’t spelling mistakes, this is new lines, added conversations etc.

    Language:
    English
    Words:
    55,688
    Chapters:
    10/?
    Comments:
    195
    Kudos:
    432
    Bookmarks:
    123
    Hits:
    9,338

  6. 6

    The Sins of Mara by , ,

    Fandom: Undertale (Video Game)

    19 Jun 2024

    Words:
    1,370
    Works:
    1
    Bookmarks:
    6

  7. 1

    IT "Trailer" by

    Fandoms: Undertale (Video Game), Deltarune (Video Game)  

    04 May 2025

    Tags
    Summary

    With her new friends, Toriel found herself finally at peace. They were on a lake, just goofing off. She was sitting on edge with Lucida, just two girls, chatting away.

    But it was broken when they heard zipper and a laugh from behind.

    Alphys : News flash, Tori. School's out for summer!

    Toriel : Oh, that? That's not school stuff.

    Not believing, the girl pulled out a big book.

    Alphys : What's with the history project?

    Toruel, sighing out : Oh... Well, when I first moved here, I didn't really have anyone to hang out with, so I just started spending time in the library.

    Chara, rasing eyebrow, amused : You went to the library? On purpose?

    But before Toriel could respond, there was the same laugh, she heard so much inher dreams at this point. Lucida rose from her spot, walking up to them.

    Lucida : Hey! Don't make fun of her! Let me see...

    Series
    Language:
    English
    Words:
    907
    Chapters:
    1/1
    Kudos:
    1
    Bookmarks:
    1
    Hits:
    15

  8. 9

    Just Here to Say Thank You by

    Fandoms: Undertale (Video Game)  

    05 Aug 2017

    Tags
    Summary

    Baking pies and storytime. And Sans has some tales to share…

    Language:
    English
    Words:
    3,871
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    75
    Bookmarks:
    9
    Hits:
    714

  9. *

    From Stranger To Stranger by

    Fandoms: Undertale (Video Game)  

    23 May 2021

    Tags
    Summary

    “Odd request coming from a stranger I know- but... can I have a hug?”

    You were just a normal human living in Ebott city. Life was simple- until a bunch of skeletons that look like each other start asking for hugs

    Language:
    English
    Words:
    7,278
    Chapters:
    16/?
    Comments:
    223
    Kudos:
    846
    Bookmarks:
    128
    Hits:
    12,660

  10. *

    Kinktober-2019 by

    Fandoms: Undertale (Video Game)  

    02 Nov 2019

    Tags
    Summary

    My first time doing Kinktober. Oh boy. Rest assured, this will not be organized. I'm flying by the seat of my pants, as usual.

    Language:
    English
    Words:
    58,581
    Chapters:
    31/31
    Comments:
    591
    Kudos:
    1,884
    Bookmarks:
    204
    Hits:
    79,287

  11. 3

    The Queen by

    Fandoms: Undertale (Video Game)  

    01 Oct 2023

    Tags
    Summary

    Error y Nightmare viven su vida como reyes de Trébol pero una nueva bendición vendrá a sus vidas... aunque... ¿Por cuánto tiempo podrán protegerse?

    Language:
    Español
    Words:
    7,605
    Chapters:
    2/?
    Comments:
    1
    Kudos:
    17
    Bookmarks:
    3
    Hits:
    406

  12. 25

    Love In The Time Of Quarantine by

    Fandoms: Undertale (Video Game)  

    18 Feb 2025

    Tags
    Summary

    Staying confined inside your house was stressful, even with your mates around you.
    You were having a down-day. The skeletons took upon themselves to take care of you!

    Language:
    English
    Words:
    3,452
    Chapters:
    3/3
    Comments:
    23
    Kudos:
    174
    Bookmarks:
    25
    Hits:
    2,515

  13. 43

    Bitty and the Skeletons by

    Fandom: Undertale, Undertale (Video Game)

    21 Jan 2021

    Words:
    145,134
    Works:
    4
    Bookmarks:
    43

  14. 37

    Bitty in a Universe of Skeletons by

    Fandoms: Undertale  

    09 Aug 2019

    Tags
    Summary

    Bunny is slowly getting her life back together. Two years have passed since she grew back from being a bitty to her normal human size and said good bye to her skeleton friends. Now she's back in school, working as a paralegal to help bitties and monsters, and is loving life with her two housemates, Sans and Papyrus.
    But a terrible accident puts her inside Sans's multiverse machine and suddenly Bunny is small again and being tossed through the multiverse. There are old friends, new acquaintances, and a very dangerous skeleton hunting her down. Can Bunny make it through and get back to her world in one piece?

    This is a direct sequel to 'Bitty in a House of Skeletons.'

    Bonus smut chapters are included in this story. These are non-canon and for reader enjoyment.

    Series
    Language:
    English
    Words:
    43,945
    Chapters:
    10/10
    Comments:
    56
    Kudos:
    247
    Bookmarks:
    37
    Hits:
    3,925

  15. 2

    Invaluable gift (Бесценный дар) by

    Fandoms: Undertale (Video Game)  

    17 Feb 2021

    Tags
    Summary

    Кошмары - сборище одиночек, безумцев и маньяков под крылышком (тентаклей) самого главного сумасшедшего. Хаос, террор, убийства - для них постылая обыденность, способ бороться со скукой. Все меняется в одночасье, когда кошмаров, одного за другим, как чума - косит сексуальный голод настолько сильный, что остатки разума сметает под натиском озверевшей магии. Но все не так плохо, ведь благодаря этим обстоятельствам все кошмары обретут нечто большее, чем когда-либо имели прежде.

    Language:
    Русский
    Words:
    178,612
    Chapters:
    43/?
    Comments:
    7
    Kudos:
    38
    Bookmarks:
    2
    Hits:
    2,032

  16. 35

    Between Royal Puns and Pie Pranks by

    Fandoms: Undertale (Video Game)  

    15 May 2016

    Tags
    Summary

    After meeting with the skeleton guardian of the Ruins, Toriel comes to terms with her feelings for him. But why would he care for a silly young monster like herself?

    Language:
    English
    Words:
    3,836
    Chapters:
    1/1
    Comments:
    21
    Kudos:
    272
    Bookmarks:
    35
    Hits:
    2,647

  17. 5

    Relationship Problems by

    Fandoms: Undertale (Video Game)  

    09 Aug 2017

    Tags
    Summary

    Sans had been acting strange as of late and Toriel is determined to find out what's wrong.

    Language:
    English
    Words:
    8,103
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    69
    Bookmarks:
    5
    Hits:
    1,207

  18. 10

    Franstastic's Scenarios and Headcanons by

    Fandoms: Undertale (Video Game)  

    16 Nov 2019

    Tags
    Summary

    A compilation of written scenarios and headcanons from my Tumblr

    Language:
    English
    Words:
    15,086
    Chapters:
    7/?
    Comments:
    7
    Kudos:
    76
    Bookmarks:
    10
    Hits:
    2,125

  19. *

    Living with Skeletons by

    Fandoms: Undertale (Video Game)  

    07 Dec 2019

    Tags
    Summary

    You're an artist and singer, you live at home alone.
    One commission from an Undertale fan sends your home into chaos when uninvited skeletons invade your home.

    Will they get back to their world and will you fall in love?

    Language:
    English
    Words:
    65,829
    Chapters:
    66/?
    Comments:
    952
    Kudos:
    732
    Bookmarks:
    120
    Hits:
    26,157

  20. 15

    Sans x Reader Oneshots by

    Fandoms: Undertale (Video Game)  

    03 Apr 2020

    Tags
    Summary

    The title says it all! I have in mind some short stories featuring multiple AUs.
    Don't be afraid to make some requests!

    Language:
    English
    Words:
    8,410
    Chapters:
    11/?
    Comments:
    38
    Kudos:
    155
    Bookmarks:
    15
    Hits:
    5,280

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