1 - 20 of 71 Works in The Underground (Undertale)

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  1. Tags
    Summary

    Frisk is a 18 year-old young man who just graduated high school. He arranges a hiking trip with his best friend Jack, which leads to him falling in a mysterious hole. Now he has to live in a completely new world, filled with monsters, both good and bad. Can he escape the monster realm?

    Series
    Language:
    English
    Words:
    39,324
    Chapters:
    18/?
    Comments:
    6
    Kudos:
    8
    Bookmarks:
    2
    Hits:
    248
  2. Tags
    Summary

    You stumble across a secret.

    Series
    Language:
    English
    Words:
    811
    Chapters:
    1/1
    Kudos:
    25
    Bookmarks:
    4
    Hits:
    94
  3. Tags
    Summary

    You are a chef with your own restaurant. Your one true love is food, however, that is going to change the moment you lay eyes on a certain man engulfed in flames.

    Language:
    English
    Words:
    33,786
    Chapters:
    15/?
    Comments:
    99
    Kudos:
    263
    Bookmarks:
    53
    Hits:
    3717
  4. Tags
    Summary

    After a teenage thug Frisk Curtis is forced to flee the city due to an incident, he ends up in a mysterious world called the underground. It seems like he needs to leave but…he doesn’t want to

    Language:
    English
    Words:
    4,788
    Chapters:
    2/?
    Kudos:
    6
    Hits:
    117
  5. Tags
    Summary

    What was the reason for the monsters being banished from the surface world? There must have been one, right? Humans wouldn’t have put all that time and effort into forcing them into the underground if there wasn’t some kind of need for it, right?

    Right?

    “HUMAN! YOU APPEAR TO BE PREOCCUPIED BY SOMETHING. IN FUTURE, PLEASE PAY ATTENTION TO MY COOKING LESSON, OR YOU CAN NEVER BE AS GREAT AS THE GREAT PAPYRUS! NYEH HEH HEH!”

    But everyone they had met had been so nice to them? Was it just an act? Were they hiding something?

     

     

    Frisk is enjoying their time in the underground, but is starting to get curious about why monsters were trapped there in the first place.

    Why were they banished?

    Why, the hunt, of course.

    Language:
    English
    Words:
    1,463
    Chapters:
    2/?
    Comments:
    9
    Kudos:
    10
    Bookmarks:
    2
    Hits:
    102
  6. Tags
    Summary

    A long time ago in a undisclosed AU....

    Dr. W. D. Gaster was always heralded as a Kind SOULed scientific genius... creator of such breakthroughs as the CORE, Dimensional Boxes, and much much more... helping Monsterkind find new HOPE after being suddenly trapped under a Mountain...

    So why does Sans fear him as the devil incarnate... a Monster among Monsters that made his early years a nightmare... a complete polar opposite of how everyone else perceived him...

    ...almost like they were two different Monsters...

    .........what if... what if... they WERE two different Monsters?

    ................what if... there was TWO Monsters named W. D. Gaster?

    Series
    Language:
    English
    Words:
    27,035
    Chapters:
    6/?
    Comments:
    34
    Kudos:
    7
    Bookmarks:
    3
    Hits:
    107
  7. Tags
    Summary

    Failure. Reset.
    Failure. Reset.
    Failure. Reset.

    This time, you fall into the Underground, weeks before the last human child arrives.

    Not many monsters expected to see an adult human in the Underground after all this time... not even Sans. You definitely weren't supposed to be here.... or maybe you are? Maybe you’re 'the anomaly' that can finally stop this endless cycle of resets?

    Or maybe you'll just get stuck in it with the rest of them.

     

    The story is told through the second person. This was done to keep the story's POV similar to the game's POV.

    Language:
    English
    Words:
    40,101
    Chapters:
    17/?
    Collections:
    4
    Comments:
    179
    Kudos:
    693
    Bookmarks:
    123
    Hits:
    9356
  8. Tags
    Summary

    /!\ Mention of former suicide/!

    Another AU of Undertale. But this time it is not a story centered on a modified Sans. No Ink, no Error, no multiverse... This story focuses on one question: What would have happened if the resident of the underground had known the fallen children?

    Due to an experience by Alphys, the six souls imprisoned in the palace of Asgore were scattered all over the underground. Unable to survive without bodies, they merged with souls of monsters passing by. This situation does not seem to suit anyone, each one being afraid of the other... But they will have to learn to help each other, because the bond that unites them is deeper than they think...

    What will happen when the fused ones have to separate? What choice will they make? Let Alphys recover the souls? Or become fugitives to protect their new companion?

    Language:
    English
    Words:
    6,965
    Chapters:
    10/?
    Comments:
    13
    Kudos:
    18
    Bookmarks:
    1
    Hits:
    230
  9. Tags
    Summary

    /!\Mention d'un ancien suicide/!\

    Encore un énième AU d'Undertale. Mais cette fois ce n'est pas une histoire centrée sur un Sans modifié. Pas de Ink, pas de Error, pas de multivers... Cette histoire est centrée sur une question : Que se serait-il passé si les habitants de l'underground avaient connu les enfants tombés ?

    À cause d'une expérience d'Alphys, les six âmes emprisonnées dans le palais de Asgore se sont éparpillées aux quatre coins de l'underground. Ne pouvant survivre sans corps, elles ont fusionné avec des âmes de monstres qui passaient par là. Cette situation ne semble convenir à personne, chacun ayant peur de l'autre... Mais ils devront apprendre à s'entraider, car le lien qui les uni est plus profond qu'ils ne le pensent...

    Que se passera-t-il quand les fusionnés devront se séparer ? Quel choix feront-ils ? Laisser Alphys récupérer les âmes ? Ou devenir des fugitifs pour protéger leur nouveau compagnon ?

    Language:
    Français
    Words:
    7,155
    Chapters:
    10/?
    Kudos:
    2
    Bookmarks:
    1
    Hits:
    85
  10. Tags
    Summary

    The last route was a genocide, and it does not fill frisk with determination. Sans has to deal with hate issues. Napstablook is there for frisk. Sorry if this is confusing.

    Series
    Language:
    English
    Words:
    29,612
    Chapters:
    59/59
    Comments:
    213
    Kudos:
    29
    Bookmarks:
    2
    Hits:
    926
  11. Tags
    Summary

    When a little kid asked you for help, telling you their friend was hurt on the mountain, you didn’t ever expect that little shit to push you down the hole where their ‘friends were stuck’.

    What really got you fucked up was the fact that the kid's ‘friends’ really were stuck in the mountain. Now, you were the only human, and you had a very large target on your head with a heavy bounty for your capture.

    And then there was those annoying skeletons that were always on your case. both were menaces to society and a rather large pain in the ass since you ran into them at every turn- even when they weren’t trying to capture you, they were hanging around you and bickering.

    Well. Maybe they grow on you a little...but its not your fault you were fated to be apart of their lives! blame that weird goop man that told you what 'the universe wanted'.

    Language:
    English
    Words:
    14,056
    Chapters:
    6/?
    Comments:
    65
    Kudos:
    129
    Bookmarks:
    34
    Hits:
    1767
  12. Tags
    Summary

    During a trip to Ebott City on Drillers Association business, Susumu decides to investigate the stories of Mt Ebott. Now stuck in the Underground, Mr. Driller and his friends find themselves on a new adventure.

    With the fate of all monsterkind on their shoulders, will Susumu and his friends be able to return home and free those trapped beneath the mountain?

    Language:
    English
    Words:
    290
    Chapters:
    1/?
    Hits:
    9
  13. Tags
    Summary

    You don't know who you are or who these people are, but you do know what a prison is.

    Things that make us human:
    #2 Memory

    Series
    Language:
    English
    Words:
    2,674
    Chapters:
    1/1
    Comments:
    5
    Kudos:
    29
    Bookmarks:
    1
    Hits:
    342
  14. Tags
    Summary

    You'd fallen down into the Underground, a huge cave under the mountain that cages all of monsterkind.

    One monster attempts to solve everyone's problems.

    ... And he needs you.

    Language:
    English
    Words:
    2,318
    Chapters:
    1/2
    Comments:
    13
    Kudos:
    155
    Bookmarks:
    26
    Hits:
    1617
  15. Tags
    Summary

    'She kept her eye on the obscured, bottomless pit below and sighed. Someone was calling her. Before she could respond she felt a tight grip on her shoulder'

    Underfell Undyne finds herself trapped between her own reality and that of Undertale, and learns a lot about herself as a result. She learns how to truely love and appreciate those that you care about.

    Language:
    English
    Words:
    1,786
    Chapters:
    1/1
    Kudos:
    6
    Bookmarks:
    1
    Hits:
    40
  16. Tags
    Summary

    "Can I help you?" you gruffly ask the tallest skeleton you'd ever seen. Not that it's saying much, anatomical models notwithstanding.

    Motherfucker is at least six-five and STILL wears heeled boots. It made for good intimidation, you guessed. Too bad it didn't do shit for you. He just looks like someone in high school that blasts five finger death punch in their car.

    Series
    Language:
    English
    Words:
    3,199
    Chapters:
    1/1
    Comments:
    20
    Kudos:
    169
    Bookmarks:
    30
    Hits:
    918
  17. Tags
    Summary

    In the war between humans and monsters, the hybrids were forced to choose a side. By the time the war ended, all were dead- all except for one, who had refused to choose a side. As punishment, the victorious humans threw the hybrid down into the Underground after the surviving monsters. Filled with anger, the hybrid used his magic to place a curse upon the Underground: Only children could Fall, and when they did, they were Bound to a monster there. An hourglass pendant filled with sand the colour of the child's soul would be hung around their neck, and if the child could not escape the Underground in time both monster and human would die.

    It's Frisk's turn now, but they are not alone. The seven who came before will guide them- and they are not willing to give up on their freedom. No matter the cost.

    Language:
    English
    Words:
    2,230
    Chapters:
    3/?
    Comments:
    2
    Kudos:
    11
    Bookmarks:
    2
    Hits:
    222
  18. Tags
    Summary

    Dans un univers où les moments déterminants de la vie d’une personne apparaissent sous forme d’images et de marques sur la peau, Frisk se retrouve piégée dans une série sans fin de répétitions, et peine à se définir alors que ses Marques de Vie menacent de la définir en retour.

    Language:
    Français
    Words:
    35,228
    Chapters:
    7/7
    Kudos:
    4
    Bookmarks:
    1
    Hits:
    89
  19. Tags
    Summary

    Since she was Five years old, Ten year old Frances "Frisk" suffered from frequent Epileptic seizures after being diagnosed with Epilepsy. One day, whilst out with her parents, a seizure causes Frisk to fall into a hole in Mt Ebbott, leaving her trapped in the world of monsters. Now Frisk has to survive this new world whilst having to deal with a medical condition at the same time. This is based on the Neuteral-Pacifist route only this time, Frisk has a medical condition which makes her more vulnerable and although she is a scared little girl in this story, she is still determined.

    Language:
    English
    Words:
    37,777
    Chapters:
    19/?
    Comments:
    10
    Kudos:
    71
    Bookmarks:
    13
    Hits:
    1898
  20. Tags
    Summary

    There once was a man who was wiped from existence because of one mistake. No one remembers him, but he is still there watching. This is his story.

    Series
    Language:
    English
    Words:
    2,444
    Chapters:
    3/?
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    108

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