1 - 20 of 8016 Works in Undyne (Undertale)

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  1. Tags
    Summary

    Frisk just thought it was a normal job. Steal the package and deliver, nothing she couldn’t handle. However, she quickly realizes her situation just got a whole lot more complicated. Now she is caught up in a gang war between monsters and humans, and all the while she tries to figure out who this mysterious “Judge” is.

    Language:
    English
    Words:
    28,171
    Chapters:
    17/?
    Comments:
    48
    Kudos:
    57
    Bookmarks:
    8
    Hits:
    882
  2. Tags
    Summary

    You decide to host a nice christmas party... too bad Sans have others plans.

    You can consider this my only enter for KinkTober/SmutTober.

    Language:
    English
    Words:
    1,113
    Chapters:
    1/1
    Hits:
    1
  3. Tags
    Summary

    (TAGS WILL BE UPDATED DEPENDING ON THE CHAPTERS. THE SPICY STUFF WON'T HAPPEN UNTIL LATER CHAPTERS)

    He looks at you, running a tongue over his gold tooth. His gaze washes over you, making you feel sheepish. He chuckles and leans back.
    "Ya think I'd let you out of my sight so easily?" He purrs.

    Series
    Language:
    English
    Words:
    22,765
    Chapters:
    7/?
    Comments:
    29
    Kudos:
    92
    Bookmarks:
    28
    Hits:
    1578
  4. Tags
    Summary

    IT'S OCTOBER, GUYS! YOU KNOW WHAT THIS MEANS FOR AUTHORS!

    You know how this goes, right? Whole bunch of reader inserts about special fun times with your favorites. And I have no regrets posting this, whatsoever.

    If you are under the age of 18, I would prefer you not read this. Period. If you do, I don't wanna know.

    So...shall we start the Sin Train?

    Language:
    English
    Words:
    62,301
    Chapters:
    18/31
    Comments:
    67
    Kudos:
    237
    Bookmarks:
    33
    Hits:
    7754
  5. Tags
    Summary

    After returning to the surface, Frisk now lives with Toriel in a new home, they work with Alphys to revive Asriel. But also meets Chara, who was their guardian and narrator in the underground, Frisk brings them back to life, and Chara doesn't want to show themselves yet, so decides to live in Frisk's closet.
    The two eventually fall in love.

    Follow my tumblr @goatboyalex if you have any questions or wanna see their designs :)

    Language:
    English
    Words:
    41,264
    Chapters:
    28/?
    Comments:
    54
    Kudos:
    135
    Bookmarks:
    16
    Hits:
    3395
  6. Tags
    Summary

    After making it to the surface after the horrors of the underground, Sans is happy with his human mate.

    This is their first October.

    Series
    Language:
    English
    Words:
    13,535
    Chapters:
    17/32
    Kudos:
    17
    Bookmarks:
    1
    Hits:
    260
  7. Tags
    Summary

    The barrier is broken, the monsters are free, now bring me some cake.

    A majority of the population were scared of monsters. Twenty-three year old Caroline Cooper, an unemployed secondary school graduate, welcomes them. As a result, they welcome her right back. She gets thrown into an outrageously ridiculous dance class, hosted by the Underground's one and only star, and ends up finding someone that hates those classes more than she does. So what happens when she immediately falls for her new friends, one that has convinced himself that a RESET is coming and doing anything in life is pretty much pointless?

    ...Well, at least the monsters seem to welcome her right back, so far. But how long until they realise she's actually an immature five year old? How how long afterwards until they get as far away from her as possible?

     

    Or a mildly depressed Sans meets a human that just doesn't seem to be with the program. Said human has a crush on him and apparently was never taught to wait and think things over before you run off and act.

    Series
    Language:
    English
    Words:
    59,097
    Chapters:
    15/?
    Comments:
    44
    Kudos:
    70
    Bookmarks:
    7
    Hits:
    1203
  8. Tags
    Summary

    Monsters have burst from underneath Mount Ebott. and have slowly gotten their rights over the last three years since they've emerged. A program to allow the monsters to move farther out into the states from Mount Ebott has been established but has set boundaries almost like foreign exchange students, where they must live with a family that is willing to host. Four sisters were entered into this program by their mother before she passes from unfortunate circumstances. Toriel, Queen of the monsters, feels a deep love for the words entered by the mother and moves to have the four sisters host a band of skeletons in a large mansion. She hopes that with one close family of sisters can warm the hearts of these skeletal brothers into trusting humanity just a bit more.
    How will the sisters keep these monsters together in harmony when dealing with a dark trama they all secretly share? Find out!

    Language:
    English
    Words:
    59,863
    Chapters:
    10/10
    Comments:
    6
    Kudos:
    25
    Bookmarks:
    5
    Hits:
    229
  9. Tags
    Summary

    While UF Papyrus is busy getting oriented in the Undertale Universe, UT Papyrus finds himself taking the edgy skeleton's place. He has his work cut out for him, what with everyone out to get him. But with the help from some unlikely allies, maybe he's the necessary element to change the 'kill or be killed' nature of this harsh universe.

    Arc 1 - 80% Cocoa: ch 1-7 (Complete)
    Arc 2 - 60% Cocoa: 8-15 (Complete)
    Arc Final - 40% Cocoa: 16-??

    Series
    Language:
    English
    Words:
    62,437
    Chapters:
    21/?
    Comments:
    116
    Kudos:
    338
    Bookmarks:
    40
    Hits:
    5791
  10. Tags
    Summary

    Sans is tired of the resets. He decides to do something about it to change things for the better.
    Everything just sort of goes downhill from there.

    Language:
    English
    Words:
    270,175
    Chapters:
    50/50
    Comments:
    307
    Kudos:
    498
    Bookmarks:
    52
    Hits:
    13210
  11. Tags
    Summary

    After reports of a small skeleton arose everyone grew curious as to who it was since skeleton monsters have been thought to havw been extinct a long time ago. Well.... Other than papyrus and gaster.

    So when a small orphanage finally helps the skeleton they try to get answers which thr smaller one advoid to answer. He shys away from monsters very easily.

    But the great papyrus cannot let that side! Not on his watch.

    Language:
    English
    Words:
    17,845
    Chapters:
    8/?
    Comments:
    1
    Kudos:
    41
    Bookmarks:
    9
    Hits:
    799
  12. Tags
    Summary

    Dream and Cross are total opposites. Dream being the quiet, friendly, semi-nerdish type, and Cross being the total weeaboo introvert. Most of the other freshmen, including themselves, think that they could never get along. So when their English teacher pairs the both of them up for a group project, you can only imagine their reactions.

    But they do have things in common. And one of their secrets might just bring them closer together.

    Language:
    English
    Words:
    55,530
    Chapters:
    19/?
    Comments:
    153
    Kudos:
    119
    Bookmarks:
    13
    Hits:
    1280
  13. Tags
    Summary

    "Welcome back to Multiverse High, everyone!!!!!!"
    The intercom rang as the students swarmed the hallways, freshmen staring in awe at the giant school.
    Some grouped with friends and people they recognized.
    And others disappeared, bored of the introduction and going to find something else to do.
    A few monsters in particular hung out in the back.
    For these monsters in particular, high school would be another ride in life.

    But lets start with one in particular, shall we?

    Language:
    English
    Words:
    4,583
    Chapters:
    3/?
    Comments:
    4
    Kudos:
    5
    Bookmarks:
    4
    Hits:
    33
  14. Tags
    Summary

    You're in a gang situated near Ebbot City, and you live for the violence. You're not without your morals, they're just... flexible. But when one of your monster friends invites you to Grillbys, they might have accidentally brought you into a world of trouble. Can you keep your new skeleton friends from learning of your gang affiliations? What will their brothers do when they see your LV and EXP? And why are the amalgamates disappearing one by one, including your best friend Reap?

    Featuring friendly amalgamates, drama, high tensions, and traumatized skeletons, what will you do as your list of people to protect grows far faster than you ever expected?

    Series
    Language:
    English
    Words:
    119,871
    Chapters:
    46/?
    Comments:
    703
    Kudos:
    915
    Bookmarks:
    195
    Hits:
    13885
  15. Tags
    Summary

    You are a human raised by Asgore, who found you when you were just a baby. You’ve lived your entire life in the Ruins, and your boredom has recently become unbearable. You want to venture out into the rest of the Underground, just to see what it’s like! You strike out on your own, but aren’t alone for long. Sans, a low-ranking member of the Royal Guard, offers to take you on a guided tour of everything worth seeing in the Underground [which, admittedly, isn’t very much.]
    On your trip, you’ll see things you never thought you’d see, become friends with Monsters you never thought you’d meet, and learn things you didn’t want to know. You’ll finally figure out your place in the Underground...but you might not like it.

    Swap!Sans X Reader

    Lighthearted and filled with goof-em-ups [and some pining].

    Updates Fridays starting 10/25/19

    Language:
    English
    Words:
    825
    Chapters:
    1/15
    Kudos:
    7
    Bookmarks:
    2
    Hits:
    43
  16. Tags
    Summary

    Alternate universe: UnderFell

    A kill or be killed world. Love is the ultimate weakness. Everybody has LV and only the strongest can survive. Nobody cares about each other. Same with the skeleton brothers. No love, no caring. Only hate.

    ...right..?

    Language:
    English
    Words:
    1,303
    Chapters:
    3/?
    Comments:
    8
    Kudos:
    9
    Hits:
    67
  17. Tags
    Summary

    Life in Swapfell can make even the most patient monsters frustrated, angry even. Except for Razz, he gets downright murderous. But that's not so bad when someone else is begging for you to break their bones.

    Language:
    English
    Words:
    115,585
    Chapters:
    18/18
    Comments:
    40
    Kudos:
    74
    Bookmarks:
    11
    Hits:
    1239
  18. Tags
    Summary

    The Kingdom of Monsters sealed beneath Mt. Ebbott is a kingdom divided.

    After the deaths of the Royal Children and Asgore’s declaration of war, the order was given that any humans who fall would be killed and their souls used to break the barrier and for a time, the citizens of the kingdom were content to wait for all seven souls that were needed.

    It wasn’t until many years later after the next human’s fall and subsequent death that many monsters spoke out against the King’s decree and insisted that the human soul should be absorbed and used to free the kingdom. It wasn’t long before civil war broke out amongst the people of the Underground.

    The group that wanted to use the soul eventually lost the battle and were forced to the lands far from the Capital, the whole of these places serving as a prison for the defeated monsters. Waterfall and Snowdin have long since been forsaken, their residents a mix of dissenters and criminals sent away by the Capital.

    When Sans and his brother receive information regarding strange incidents occurring in town over the last few weeks, their investigation leads them to discover something that will shake the whole kingdom to its’ core.

    Language:
    English
    Words:
    3,282
    Chapters:
    3/?
    Comments:
    4
    Kudos:
    5
    Bookmarks:
    2
    Hits:
    36
  19. Tags
    Summary

    Yep you heard that right ladies and gentleman (and non-binary peeps) this is a fanganronpa mixed with Undertale! How exciting!

    Language:
    English
    Words:
    1,067
    Chapters:
    2/?
    Hits:
    20
  20. Tags
    Summary

    Rus has been given a choice: get a degree or get a job.

    So he signs up for classes.

    He didn't sign up for the crush.

    Or any of the trouble it would get him in.

    Language:
    English
    Words:
    29,943
    Chapters:
    18/33
    Comments:
    14
    Kudos:
    47
    Bookmarks:
    9
    Hits:
    510

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