1 - 20 of 16735 Works in Sans (Undertale)

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  1. Tags
    Summary

    Different Undertale monsters discover a variety of body modifications. Reactions vary.

    Language:
    English
    Words:
    1,064
    Chapters:
    5/7
    Comments:
    6
    Kudos:
    12
    Hits:
    103
  2. Tags
    Summary

    Things are settling down and finally everything seems fine after HOAG and FB. A true happy ending has been reached, Chara and Asriel are free and happy, the monsters are settling once again, and Frisk is just enjoying being a normal child. But are things ever that simple?
    There are monsters still in the Void that need freed, freedom comes at a cost though.
    Frisk is DETERMINED that everyone will have a true happy ending, but what will everyone's happiness cost them in the end?
    After all, in this world nothing is ever free.

    Series
    Language:
    English
    Words:
    229,932
    Chapters:
    48/?
    Comments:
    199
    Kudos:
    39
    Bookmarks:
    2
    Hits:
    676
  3. Tags
    Summary

    Steven falls into the Underground like a Fucking doofus.

    Language:
    English
    Words:
    6,819
    Chapters:
    5/?
    Comments:
    2
    Kudos:
    14
    Hits:
    124
  4. Tags
    Summary

    Monsters and humans are... sort of getting along. Although they technically have equal rights, things aren't exactly easy-peasy-lemon-squeazy. An anti-monster gang has sprung up and wreaked havoc around the country. Naturally, a race of monsters who live off of violence aren't exactly the type to shy away from a fight. Rumors are spreading about the possibility of another Monster vs. Human War, and things aren't looking good.

    Nevertheless, both sides are pouring into your clinic after their nightly brawls, but how does one heal a monster? It's a good thing you have a bit of magic up your sleeve, but careful! Mages aren't supposed to exist anymore.

    Let's not forget that there's a certain edgy skeleton who fell for you since the day you patched him up after hours. You had brains, looks, and one of the most stubborn SOULS he's ever seen. He thought you were an actual angel, and if anyone tried to clip your wings, well, he was gonna have a great time showing them what happens when they mess with his girl.

    It's only a matter of time before someone steps out of line. After all, in this world, it's kill or be killed. But one question remains: which side has the real monsters?

    Language:
    English
    Words:
    68,482
    Chapters:
    14/?
    Comments:
    280
    Kudos:
    510
    Bookmarks:
    80
    Hits:
    4836
  5. Tags
    Language:
    English
    Words:
    589
    Chapters:
    1/1
    Kudos:
    8
    Bookmarks:
    2
    Hits:
    41
  6. Tags
    Summary

    Wolf Skeletons are on the endangered species list, and Wolf Gaster wants to do something about it. Even if it means finding Wolf Red and kidnapping him and forcing him to carry a litter.

    Language:
    English
    Words:
    9,158
    Chapters:
    4/?
    Comments:
    2
    Kudos:
    17
    Bookmarks:
    1
    Hits:
    635
  7. Tags
    Summary

    Seven days out of the underground.

    Language:
    English
    Words:
    940
    Chapters:
    5/7
    Kudos:
    5
    Bookmarks:
    1
    Hits:
    80
  8. Tags
    Summary

    A human girl thinks she's ending her life when she throws herself down a crack on Mt Ebott but is found and healed by the skeleton brothers. It soon becomes clear that she might be a much anticipated priestess who has the power to summon the beast god that can free monsters from the underground. She must travel through timelines and alternate universes to find her guardians, skeleton monsters with strong souls who will aid her in her quest to break the barrier and maker her dreams come true.

    Fushigi Yuugi/Undertale hybrid fic written purely for readers wish fulfillment and reverse harem fantasies! ;) Gonna try to keep it pg 13 but I might do nsfw ficlets and short stories based on what if scenarios.

    Language:
    English
    Words:
    106,374
    Chapters:
    14/?
    Comments:
    296
    Kudos:
    509
    Bookmarks:
    103
    Hits:
    5308
  9. Tags
    Language:
    English
    Words:
    35,531
    Chapters:
    9/?
    Kudos:
    3
    Hits:
    361
  10. Tags
    Summary

    Set after the events of Hell is a Place on the Surface.

    In the aftermath of the fiasco at the penthouse of one Victor Masters, the Surface is in greater turmoil then before. Monsters—collared or not—are treated with suspicion and many are being sold to government funded ‘shelters’ where the monsters are never heard from again…

    You have been busy handling the fallout in your own way. The matters of the surface hardly make it all the way to Snowdin, where you, Sans, Frisk, Papyrus and the mysterious Lyris currently reside. You have your hands full managing this house so things don’t collapse in on themselves.

    Soon, something will surface that will force you to face the horrors of the Surface once again, but all you want is to find peace.

    Series
    Language:
    English
    Words:
    32,913
    Chapters:
    18/?
    Comments:
    221
    Kudos:
    267
    Bookmarks:
    48
    Hits:
    4789
  11. Tags
    Summary

    Little drabbles of alternative timelines to the TrioBlasterSet AU. Wanna see the one timeline where Fellby got turned into a kid again? Or the one where the skeletons were the adults and the flames the children? You will see it here! :D

    Series
    Language:
    English
    Words:
    20,183
    Chapters:
    10/?
    Comments:
    16
    Kudos:
    92
    Bookmarks:
    5
    Hits:
    913
  12. Tags
    Summary

    "...Fuhuh... So you want to hear my story, eh? Well, it's not exactly a happy-go-lucky story, so now's your chance to back out now if you're squeamish about violence and the like."

    *LEAVE. ("...Good choice.")
    *STAY. ("...Fine. Remember I warned you, though.")

    "I know you came to hear MY story, but... It's best if we go to the very, very beginning. July tenth, eighteen-thirty-eight, to be exact. One last time: are you sure about this?"

    *YES, I WANNA HEAR! ("Okay, okay, sheesh!")
    *NO, I DON'T WANNA HEAR! ("Then leave. Simple as that.")

    "Alright, fine. Exactly one-hundred and eighty-seven years ago, there were two races: MONSTERS and HUMANS..."

    Language:
    English
    Words:
    1,813
    Chapters:
    2/?
    Comments:
    16
    Kudos:
    8
    Hits:
    86
  13. Tags
    Summary

    Your life has been relatively normal for a while now. You have a good education, a decent job, and a beautiful house. One day, you wake up to find a strange artifact on your nightstand. Later that same day, Monsters return to the surface after being trapped in the underground for thousands of years. These two events have to be related, right?

    You're not certain, but you do know one thing for sure; Your life will never be the same.

    Language:
    English
    Words:
    118,877
    Chapters:
    46/?
    Comments:
    607
    Kudos:
    938
    Bookmarks:
    152
    Hits:
    13533
  14. Tags
    Summary

    After's Toriel's sudden death, a grieving Asgore appoints Sans, originally his Advisor, as Queen. Having no choice in the matter, Sans takes up the mantle, unaware of just how insane things will become. While trying to survive the madness of his king, Sans finds a large door with no handles, but there is someone on the other side, someone named Red. According to Red, there's a kingdom's worth of monsters underneath Asgore's kingdom, it's existed for hundreds of years and there's a very good chance Sans could be forced to see it soon....

    A&B/ Attic and Basement
    Original AU
    Updates Tuesday and Thursday
    !!!PLEASE MIND THE TAGS!!!

    Language:
    English
    Words:
    25,563
    Chapters:
    7/?
    Comments:
    126
    Kudos:
    103
    Bookmarks:
    18
    Hits:
    1108
  15. Tags
    Summary

    Separate to my usual drabble collection to make this lot easier to navigate! Celebrating Bday and followers on tumblr!
    Each chapter will have ship and the prompt, Tags in chapter notes! <3

    Language:
    English
    Words:
    7,064
    Chapters:
    4/?
    Comments:
    29
    Kudos:
    58
    Bookmarks:
    4
    Hits:
    314
  16. Tags
    Summary

    Edgy x Frisk pregnancy smut

    __

    Edgy goes away for the holidays and is horrified by what he comes home to.

    Which leads up to smut, and more S M U T .

    Language:
    English
    Words:
    12,918
    Chapters:
    4/?
    Comments:
    1
    Kudos:
    13
    Bookmarks:
    3
    Hits:
    1058
  17. Blank Slate by , , , , , ,

    Fandoms: Katekyou Hitman Reborn!, Harry Potter - J. K. Rowling, Black Cat (Anime & Manga), Final Fantasy VII, Yu-Gi-Oh!, Undertale (Video Game), Pet Shop of Horrors, Disgaea (Games), Catch Me If You Can (2002), The Legend of Zelda & Related Fandoms, 幽☆遊☆白書 | YuYu Hakusho: Ghost Files, Gundam Wing, Samurai Jack (Cartoon), World of Warcraft, Rockman X | Mega Man X, Supernatural, The 100 (TV), Digimon Tamers, Norse Religion & Lore, Naruto, Deadpool - All Media Types, Steven Universe (Cartoon), Chronicles of Narnia - All Media Types, Elder Scrolls V: Skyrim, Young Wizards - Diane Duane, Hellsing, Sing (2016), Hetalia: Axis Powers, Pocket Monsters | Pokemon - All Media Types, Kuroshitsuji | Black Butler, Red vs. Blue, Tales of the Abyss, Incarnations of Immortality - Piers Anthony, Splatoon, Digimon - All Media Types, Creepypasta - Fandom, Teen Titans (Animated Series), Teen Titans - All Media Types, RWBY, Gravity Falls, LoliRock (Cartoon), Percy Jackson and the Olympians & Related Fandoms - All Media Types, Kingdom Hearts, Assassination Classroom, Monster Prom (Visual Novel), Pocket Monsters: Sun & Moon | Pokemon Sun & Moon Versions, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga), Angry Video Game Nerd (Web series), 光神話 | Kid Icarus (Video Games), The Nightmare Before Christmas (1993)  

    16 Aug 2018

    Tags
    Summary

    Skull had woken with no memory. Who had he been before Skull when no one found anything?

    Would you like to join in writing who Skull is, if you want to be a co-writer please leave a message in the reviews

    Series
    Language:
    English
    Words:
    27,400
    Chapters:
    71/?
    Collections:
    1
    Comments:
    428
    Kudos:
    310
    Bookmarks:
    39
  18. Tags
    Summary

    Various short snippets set in the 'ain't this the life' series that didn't fit elsewhere. Rating and content warnings may vary.

    Series
    Language:
    English
    Words:
    11,716
    Chapters:
    4/?
    Comments:
    93
    Kudos:
    139
    Bookmarks:
    7
    Hits:
    1093
  19. Tags
    Summary

    Once upon a time humans and monsters went to war.

    Once upon a time humans lost.

    Once upon a more recent time Papyrus' brother Sans got a promotion. And now Papyrus was off to buy him a human. His new lord only deserved the best and with that he brought home what most would have deemed the worst.....

    And Sans couldn't have asked for anything more.

    Fighting was her only grace in a world where she was never the one in control. But now faced with these two new adversaries... even that may be torn away from her. Just like everything else she has tried to keep and protect.

     

    (Swapfell Surface AU) (kinda Swapfell) (mostly Swapfell)

    Language:
    English
    Words:
    16,616
    Chapters:
    7/?
    Comments:
    14
    Kudos:
    20
    Bookmarks:
    2
    Hits:
    479
  20. Tags
    Summary

    It's been three long years since the barrier was broken, the monsters are still struggling to make lives for themselves under the open sky, and Sans has managed to screw up one thing after the other since they got up there. Like seriously. What in the hell was wrong with him?

    He's trying though. Somehow, someway, he still wants to make things on the surface work. He has to make it work. Good thing he's got a plan to make it happen and has it all figured out...ish.

    He could use a little help and you could be just what he needs to get the ball rolling. Or you might be the one thing that finally blows the whole shebang up in his face. Knowing his luck...

    Language:
    English
    Words:
    64,155
    Chapters:
    12/?
    Comments:
    161
    Kudos:
    242
    Bookmarks:
    51
    Hits:
    2244

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