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  1. Tags
    Summary

    Juggling the burden of forgetting about his past, Sans is trying to cope with his life of nihilism. This is all made complicated when Frisk falls into the underground and a fallen child named Chara is attached to her soul. Is Frisk the key in helping monsters go free or will she leave the underground in a trail of dust?

    Series
    Language:
    English
    Words:
    3,726
    Chapters:
    2/?
    Kudos:
    1
    Hits:
    64
  2. Tags
    Summary

    After shenanigans and dark mysteries, the Narrator has returned to the universe of Monsters! With a Void Being on their shoulder and a world now used to the Monsters themselves this is the slice-of-life adventures that only Undertale could (maybe) provide!

    And absolutely nothing bad is on the horizon! Nothing at all!

    What, you don't believe me?

    Series
    Language:
    English
    Words:
    57,094
    Chapters:
    14/?
    Comments:
    78
    Kudos:
    127
    Bookmarks:
    13
    Hits:
    1390
  3. Tags
    Summary

    You, a lazy, jobless young adult who was still bumming in their parent's house, woke up in a bed of golden flowers.
    That scenario was oddly familiar to you, and the reason for that became apparent when one of those flowers greeted you with an overly enthusiastic "Howdy!"
    Next thing you know, you see your SOUL, and you are made painfully aware that you are destined to die, because it wasn't red.

    A generic Reader-insert fandom-metta Undertale fanfiction piece.

    #NaNoWriMo2017

    Language:
    English
    Words:
    88,361
    Chapters:
    47/?
    Comments:
    706
    Kudos:
    785
    Bookmarks:
    131
    Hits:
    10478
  4. Tags
    Summary

    Under sexed tale? Undertale sex? Get it?..

    Who am I kidding? This story is anything but undersexed! Still, it's so hard to find a title for an AU that hasn't already been used more than once. Heck, I'm sure this has been used somewhere too.

    I just don't want to get this confused with something like UnderHerTail.

    It all starts when Frisk finds a 'File Editor' in San's Lab and spends several runs hacking files and editing details... until everything goes 'wrong'.

    There is a plot of some kind in here somewhere. Good luck finding it.

    Language:
    English
    Words:
    8,679
    Chapters:
    6/?
    Comments:
    12
    Kudos:
    12
    Hits:
    490
  5. Tags
    Summary

    Before reading this, you might want to read this first; (Mr.Trager Mira x Trager) https://archiveofourown.org/works/15542304/chapters/36080211

    And this; (Lampenis) https://archiveofourown.org/works/15463350

    Both works done by my dear friend; One_sarcastic-bitch

    Series
    Language:
    English
    Words:
    629
    Chapters:
    1/?
    Kudos:
    3
    Hits:
    20
  6. Tags
    Summary

    Two small skeleton monsters live their childhood in the shadows of the underground.

    Language:
    English
    Words:
    6,500
    Chapters:
    8/?
    Comments:
    16
    Kudos:
    50
    Bookmarks:
    3
    Hits:
    964
  7. Tags
    Summary

    "Oh now you're just being hurtful." His bony hand rests against the freezer door.

    You chuckle as you stand upright. You manage to turn before he slams the fridge door shut and shoves you against it. You smile lustfully up at him as he bares his teeth in a hungry leer. His hand pins you by your collar bone, just inches from your neck.

    "Maybe I want to try the hurting for a change?" You ask as he leans closer.

    He freezes. "What?" He asks in disbelief.

    You shrug as he steps back. "I mean, I'm constantly covered in bruises, bites and blood. Not that I mind. But I wonder sometimes..." His face falls as you push against his chest until he takes another step back. You blink and look up at him. "What you would look like tied up, bruised, begging for release?"

     

     

    *playlist of the chapter titles: https://www.youtube.com/playlist?list=PLlsnUBc5D3oaVUyGPmqhkf-qQ5oey4Icf

    Series
    Language:
    English
    Words:
    77,354
    Chapters:
    20/20
    Comments:
    268
    Kudos:
    498
    Bookmarks:
    62
    Hits:
    9393
  8. Tags
    Summary

    When your housemate did a genocide route on Undertale, you admittedly should not have gotten drunk just because you got angry that they decided to go on an animated killing spree in your favorite game. You know that wasn’t the adult thing to do but you did it anyway. You also knew better than to make deals with anyone while drunk, but it was a computer, it shouldn’t have done anything. Now you were stuck in Undertale. But hey you convinced them to take your humanity instead of your soul, so maybe you might survive.

    Language:
    English
    Words:
    18,038
    Chapters:
    9/?
    Comments:
    94
    Kudos:
    188
    Bookmarks:
    33
    Hits:
    1674
  9. Tags
    Summary

    Sans has started to fall down, give into his depression. The kid continues to reset and kill his friends and Papyrus, and his feelings towards Papyrus are becoming stronger. Papyrus doesn't let him fall though. He shows Sans that he can look after him.

    Based on a conversation with Silverryu25

    Language:
    English
    Words:
    3,725
    Chapters:
    2/2
    Comments:
    52
    Kudos:
    165
    Bookmarks:
    16
    Hits:
    2086
  10. Tags
    Summary

    Frisk had to be either really brave, or a special kind of stupid to stick her nose where it didn't belong. That's what everyone thought when she got herself involved with the Conway Case. Where the police had left it alone, Frisk saw rage, and an opportunity. An opportunity to give justice to a family through the written word.

    But the deeper she searches, the darker the tunnel gets, filled with sharp twists and betrayal. Everything she thought she knew is turned on it's head, and her life is on the line. Things certainly don't get easier when she attracts the attention of the most notorious crime boss, or when Death himself begins to chase after her. Will Frisk unearth the truth of the Conway Murder? Or will she join the ranks of bodies at the bottom of Ghost lake?

    Language:
    English
    Words:
    28,175
    Chapters:
    5/?
    Comments:
    15
    Kudos:
    17
    Bookmarks:
    4
    Hits:
    218
  11. Tags
    Summary

    You have worked in Safe Haven, a place for monsters to go during their heat, for a while now with little question about your status or position. However, when prostitutes start going missing more and more often than usual, you begin to worry about your safety and the true notion of your workplace. Perhaps there is more to this Monster-Only brothel than you first thought.

    Language:
    English
    Words:
    23,131
    Chapters:
    7/?
    Comments:
    82
    Kudos:
    253
    Bookmarks:
    45
    Hits:
    3146
  12. Tags
    Summary

    Tired of seeing his children suffer in underfell Gaster does something cruel to the swap bros.

    The swap brothers now find themselves thrown into a world of kill or be killed with their dark copies watching their every move. It is unsure if they are friends or foe. They struggle to find a balance living in the Fell brothers' dark world when there already seems to a hatchet between the dark brothers themselves.

    Language:
    English
    Words:
    62,837
    Chapters:
    26/?
    Comments:
    4
    Kudos:
    117
    Bookmarks:
    11
    Hits:
    1603
  13. Tags
    Summary

    Uh-oh Sans may have goofed up too much this time.

    Series
    Language:
    English
    Words:
    2,451
    Chapters:
    4/?
    Comments:
    6
    Kudos:
    19
    Bookmarks:
    1
    Hits:
    159
  14. Tags
    Summary

    The balance within the world was now broken, but as with such universal constants it always finds a way to right itself through natural means. A balance of magic and science is required. The humans prior tried to exterminate the existence of magic to no avail. Every death of a mage would bring forth another as the magic buried itself deep into a new soul creating latent abilities in a chosen human child. The Seven: justice, bravery, patience, kindness, perseverance, integrity, and DETERMINATION would live on. If one perished then the magic would attach itself to another chosen soul. The lone town that knew the truth of their past was their only sanctuary. A place for them to escape from those that wished them harm, but absolute power corrupts absolutely and thus this is how our story… begins.

    Frisk clambered up the mountain. The mountain of so many horror stories, myths, and legends. She refused to be frightened by such things, but her heart was still racing as she ascended the peak of Mt. Ebott. It was rumored to be the home of bloodthirsty monsters that were cast into the mountain as punishment for their loss against humanity. It became nothing more than a scary story. Her hands convulsed when she prepared to jump.

    Series
    Language:
    English
    Words:
    196,829
    Chapters:
    27/?
    Comments:
    55
    Kudos:
    100
    Bookmarks:
    23
    Hits:
    3396
  15. Tags
    Summary

    Two worlds collide and so many shattered in the mix. Undertale finds itself shattered all the pieces are now mixed with a new and dark universe. Underfell. The monster are cruel and dark and surprisingly they are tolerating the undertale monsters. Their dark king going as far as to promise his protection to ALL the monster within this newly expanded underground. But something doesn’t seem right, starting with Asgore’s dark cloaked advisor and lead scientist, Gaster. He seems a little too interested in the undertale monsters.
    The underfell monsters are sure the seventh human will fall soon and all of monsterkind must be ready to fight. Gaster’s oldest son Papyrus is the new leader of the joined royal guard and he’s a monster like no other. He is a living breathing killing machine with powerhouse magic to put any normal monster to shame. Now a gentle Papyrus must figure out these dark monsters’ plan before it’s too late.

    Language:
    English
    Words:
    1,756
    Chapters:
    1/?
    Comments:
    2
    Kudos:
    9
    Hits:
    39
  16. Tags
    Summary

    What happens when a good underfell Papyrus meets a not so good version of himself?
    Edge, a fell papyrus, has been living with his boyfriend Blue in a peaceful timeline for a while now so what happens when another tall dark skeleton shows up? Instant hatred.
    Fell is the other version of Fell papyrus and he's one mean son of a gun. The skeleton is a living embodiment of all the things Edge hated about his own timeline. Worse yet this other skeleton is a killer and a half with a higher LV than Edge has seen before.

    Language:
    English
    Words:
    4,192
    Chapters:
    3/?
    Comments:
    2
    Kudos:
    22
    Bookmarks:
    1
    Hits:
    145
  17. Tags
    Summary

    Go home, little skeleton. Someone is lusting for you.

    Language:
    English
    Words:
    20,897
    Chapters:
    20/?
    Comments:
    42
    Kudos:
    489
    Bookmarks:
    46
    Hits:
    11723
  18. Tags
    Summary

    Long ago, two races ruled over Earth: Monsters and Humans. One day, war broke out between the two races. After a long battle, the humans were victorious. They sealed the monsters underground with a magic spell. Legends say that those who climb the mountain never return.

    Between Chara and Frisk, there were six others to fall into the underground. This is the Second.

    Series
    Language:
    English
    Words:
    1,900
    Chapters:
    5/5
    Comments:
    2
    Kudos:
    2
    Hits:
    37
  19. Tags
    Summary

    You shouldn't have left home...You never should have went to the mountain in search of monsters...
    You should have left well enough alone...
    You need to escape, you need to get out of here...out of this hell hole you now call a home...if not for you but for them, the monsters, your soul mates, for your children...

    Language:
    English
    Words:
    14,765
    Chapters:
    5/?
    Comments:
    44
    Kudos:
    189
    Bookmarks:
    41
    Hits:
    2269
  20. 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:
    405,837
    Chapters:
    76/?
    Comments:
    2257
    Kudos:
    2619
    Bookmarks:
    230
    Hits:
    45357

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