1 - 20 of 33 Works in Evil W. D. Gaster

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    Summary

    England's monster King, Spades, is convinced to move underground by his lead Knight after feeling a powerful aura arising to the surface from a mysterious source. Many subjects, and his Queen, were not too fond of the idea, and several monsters stayed behind as a result.

    The powerful aura from these wondrous underground fountains pleased the monsters. It had a calming and nurturing effect on them, and gave them mass amounts of power. However, that wasn't the case for everyone.
    Spades wanted to keep the fountains a secret, from the humans and the monsters that betrayed his claim. But once the humans began to force monsters underground, keeping the secret was impossible. The three Kingdoms demanded access to the fountains, and the true Darkners became desperate.

    Chaos bloomed throughout the kingdom as the fight over the fountains began.

    The comotion would drive someone mad.

    (History on the Darkners, why they are called such a title, and how their existence is tied to Undertale's timeline.)

    Series
    Language:
    English
    Words:
    2,545
    Chapters:
    3/4
    Kudos:
    7
    Hits:
    68
  2. Tags
    Summary

    Agatha promised to watch over Dominik no matter the situation. She promised to be his teacher and mentor until the end of time.

    (short fic on River Person/Agatha's perspective of the war)

    Series
    Language:
    English
    Words:
    531
    Chapters:
    1/1
    Comments:
    4
    Kudos:
    2
    Hits:
    11
  3. Tags
    Summary

    10th Century A.D or so, in Ebott, Germany, Dominik Vogel was a well known doctor. High success rates were in his reputation. Humans and Monsters alike sought his help. Vogel, however, had other interests.

    Ebott was a split kingdom. Monster's generally stuck to the far east of the mountain with their Monarchs, and the Humans stayed west, with their respective rulers. Neither were too fond of each others company. There was constant fighting on the kingdom's streets.

    Vogel wanted to change that. For worse.

    Meddling in dark magic and practicing his foreign skills, it would seem there is no hope for this estranged doctor.

    But Asgore hasn't given up yet.

    (Gaster's past as a human, and how he turned himself into a monster)

    (Originally posted in 2017)
    REVISED

    Series
    Language:
    English
    Words:
    14,895
    Chapters:
    12/12
    Comments:
    25
    Kudos:
    14
    Hits:
    111
  4. Tags
    Summary

    After a scrapped timeline in which Frisk dies, she resets and heads back for round two in the underground. Only problem is, she isn't sure if she wants to return to the surface. As she overcomes her past demons, and learns to take on new ones, she quickly learns that there's one extra monster to the mix that she's never seen before. One monster who is prepared to do anything to break the barrier, and on the hunt for a live human soul.

    Series
    Language:
    English
    Words:
    32,632
    Chapters:
    10/?
    Comments:
    113
    Kudos:
    129
    Bookmarks:
    24
    Hits:
    3212
  5. Tags
    Summary

    Monster were freed by Frisk the human, who had disappeared after the barrier broke 25 years ago. No one knows where Frisk went. They soon be came a legend.

    A few years later, Toriel died from an assassination, poison to be more accurate, 11 years after Monster where were freed from the Underground. Asgore declared war on humans, almost whipping them out. From 80 million humans soon became seven-hundred. Asgore was wounded in battle, and was soon killed the same way Toriel did, by poison. Asgore's dust was buried next to Toriel's, at the start of the underground.

    No one became the king. Instead, Monsters adopted the same things humans once had. (Presidents and stuff like that). If a hostile human was found, they were killed on the spot.

    14 years later, Sans went back to the Underground to get something from his old lab, that was beside his and Papyrus's old house. As he was about to head back he saw someone he hadn't seen for a long time.

    Flowey.

    Sans, curious, followed Flowey back to the start of the underground. Where he found a hooded person watering the flowers that sat on the royal family's graves.

    That's where this story begins-

    Language:
    English
    Words:
    10,148
    Chapters:
    7/?
    Comments:
    38
    Kudos:
    58
    Bookmarks:
    5
    Hits:
    911
  6. Tags
    Summary

    It was just a subject a creation made by Gaster an on going experiment to create the perfect killing machine a monster with the determination of a human cable of ribbing anyone apart. But Gaster made a lethal mistake how would Gaster contain a such creature with an intelligence that matches his own and magic to rival even the strongest of boss monsters, the king. The answer? This horrible creature escapes into monster society injuring multiple monsters that came across its path. There seems to be no end to the violence and the terrible creation in question, calls itself Sans.

    It is a lot better than it sounds I just suck at summaries XD

    Language:
    English
    Words:
    23,426
    Chapters:
    17/?
    Comments:
    55
    Kudos:
    174
    Bookmarks:
    16
    Hits:
    3250
  7. Tags
    Summary

    Sans is conflicted by night terrors and vague memories from previous timelines gone wrong. They are starting to become more vivid and soon he starts to notice deviations from what he's grown accustomed to, and Papyrus does something unusual that changes everything.

    With the River Person out of commission, Sans accompanies Grillby on a replenishment run through to New Home, all while wrestling with a feeling he just can't break about his long-time friend. While getting to know his friend in a newer light coupled with some changes that have come up due to past medical abuse, it is becoming more and more apparent that something or someone is interfering...

    (This fic is pre-canon which will eventually progress into gameplay plot with some embellishment. Originally rated Teen, but has since been upped to Explicit for references to bad physical and emotional trauma and Sansby exploration. Smut/sexual content will have warnings at the beginning of any chapters and a brief summary in the end notes.)

    Language:
    English
    Words:
    319,254
    Chapters:
    65/?
    Comments:
    907
    Kudos:
    665
    Bookmarks:
    90
    Hits:
    12502
  8. Tags
    Summary

    "Can you tell me a story?"
    The fire glowed warmly. The sight should make you feel happy and the warmth comfortable, but instead, it reminds you of a time best forgotten.
    "The one you're really good at!" The excitable yellow monster kid wiggled, looking much too wound up for bed. "The scary one!"
    "Alright, but this is it. Then your going straight to bed."
    "Awww... But-"
    "No buts. Don't worry though. I'll make sure it won't disappoint. You have my word."

    "Let me tell you the story of the Never Was."

    The child grins in anticipation. You stare into the fireplace; the flames reflecting in your eyes as it did back then, but the heat not near as strong. You hesitate and shift to look out the window. The rain is pouring and the echo flowers whisper eerily, blowing in the wind. You probably should stop telling this story. After all, its rude to talk about someone who's listening. You glance at the man only you can see, a mere echo of who he once was. You must be a good story teller because he's never once stopped.

    Language:
    English
    Words:
    5,489
    Chapters:
    4/?
    Comments:
    26
    Kudos:
    47
    Bookmarks:
    6
    Hits:
    385
  9. Tags
    Summary

    Undertale One-shots and drabbles.
    Updates will be random.
    This is just for fun.

    No x readers, reader inserts, non-undertale ships or ocs

    Requests are CLOSED until further notice

    Language:
    English
    Words:
    30,159
    Chapters:
    41/?
    Comments:
    487
    Kudos:
    355
    Bookmarks:
    18
    Hits:
    16303
  10. Tags
    Summary

    Frisk and Sans have been kidnapped b[nvaw&($G3snsHDa]

    ({Information [REDACTED]})
    [...loading new summary...]
    [Error 404: Information not found]
    [Loading Alternate Summary]
    [Loading Backup Summary]
    H^ndp1^735 Elements Included.

    [Error Detected]
    [Correcting Error]
    [Error: Error cannot be corrected]

    [Loading Last Resort Information]

    N0 0n3 15 h^ppv ^b0u7 7h!5.

    [Error Detected]
    [Error: Too many errors]
    [Rebooting]

    {SHUTTING DOWN}

    {BOOTING YOUR COMPUTER UP}

    A241!#st2U$n9hW53)(#B%bB)#8b)(H@n[Oa

    [Error]
    [Commencing Shut Down]

    {5HU77!NG D0WN}

     

    *Something appears on your screen even though it has shut down

    [THIS IS WHAT YOU BARGAINED FOR]

    *You are not prepared for this insanity

    Language:
    English
    Words:
    6,900
    Chapters:
    1/2
    Comments:
    1
    Kudos:
    15
    Bookmarks:
    3
    Hits:
    347
  11. Tags
    Summary

    Origin story of Gaster blaster sans and papyrus, later to be known as Rex and Pupyrus respectively

    Inspiration taken from HandPlates

    Series
    Language:
    English
    Words:
    50
    Chapters:
    1/?
    Kudos:
    3
    Hits:
    58
  12. Tags
    Summary

    Papyrus had always seen himself as the stronger brother. Of course - why wouldn’t he when his lazy brother, Sans, spends 90% of the day sleeping in his room and the other 10% doing god-knows-what? But when the secrets of time-lines and what Sans has been keeping on his shoulders are revealed, Papyrus makes a promise both to himself and to his brother that Sans wouldn’t fight this battle on his own anymore. Papyrus was going to help his older brother, no matter what.

    Language:
    English
    Words:
    39,466
    Chapters:
    8/?
    Comments:
    17
    Kudos:
    116
    Bookmarks:
    14
    Hits:
    1879
  13. Tags
    Summary

    When you came into existence, you always had your other half right next to you. Your twin. You'd never thought you'd see the day where they wouldn't be apart of you anymore. Luckily your creator Doctor Gaster will help you through it, or- maybe unluckily.
    ---
    Gaster/Male Reader fanfiction. Please heed tags and warnings.

    Language:
    English
    Words:
    7,944
    Chapters:
    1/1
    Comments:
    3
    Kudos:
    45
    Bookmarks:
    2
    Hits:
    1005
  14. Tags
    Summary

    Sans is about to receive his dream job, things don't go well

    Language:
    English
    Words:
    5,078
    Chapters:
    8/?
    Comments:
    15
    Kudos:
    63
    Bookmarks:
    2
    Hits:
    779
  15. Tags
    Summary

    oh? hi pal.

     

    fancy seeing you here. you looking to read about me and you?

     

    that’s cool. i’m a bone fide monster after all.

     

    *wink*

     

    i have some questions first.

     

    you must know about me if you’re here. so let me get to know you too?

     

    ************
    Interactive story. Choose your answers to Sans’ questions. 10 possible endings.

    Language:
    English
    Words:
    3,095
    Chapters:
    20/20
    Comments:
    56
    Kudos:
    90
    Bookmarks:
    4
    Hits:
    1134
  16. Tags
    Summary

    Honey finds his edgy counterpart all alone and roughed up in an alleyway during one of his late-night strolls that he insists on taking, and he realizes there is more to this skeleton than what meets the eye.

    How could anyone endure so much and still stand tall?

    Language:
    English
    Words:
    2,963
    Chapters:
    1/1
    Kudos:
    41
    Bookmarks:
    3
    Hits:
    320
  17. Tags
    Summary

    Many years ago, Monster kind was sealed underground.
    But then Frisk came along and saved them.
    However, after finding out about the few Monsters who weren't trapped under Mt. Ebbot, Frisk is determined to help them out of their prison, no matter what is takes. But of course, nothing is ever simple, is it?

     

    The nightmares you've been having recently are all just a mess. Darkness, and a single warped voice calling out to you. Whatever the person is saying escapes your memories, though, and all you can remember is two hands shooting out of the never-ending darkness to try and grab you. It soon becomes more apparent that these nightmares hold a deeper meaning, however, when a child comes to the mansion, bringing a few monsters along with them.

    Why do the human child, and the two skeleton monsters, seem so familiar?
    And why is your magic slowly turning into a shade of purple?

     

    Sorry for the crappy summary thing.

    Language:
    English
    Words:
    1,154
    Chapters:
    1/?
    Comments:
    8
    Kudos:
    34
    Bookmarks:
    5
    Hits:
    298
  18. Tags
    Summary

    "Sans, are you okay?"

    Silence.

    "..I'm guessing you're, uh, not really okay."

    No one said the road to recovery was an easy one.

     

    Alternatively: Depressed skele is depressed and needs help but is stubborn

    (Changed description)

    Language:
    English
    Words:
    30,399
    Chapters:
    8/?
    Comments:
    59
    Kudos:
    264
    Bookmarks:
    20
    Hits:
    5655
  19. Tags
    Summary

    Sans thought it was finally over, but it had really only just begun. Something dark lies in wait, something he forgot, and it's only a matter of time before old memories, and old purposes, are revived. When a happy ending is all at once a nightmare, Frisk and her friends are faced with either saving someone they love, or saving their future. And saving both might not be an option.

    Language:
    English
    Words:
    116,802
    Chapters:
    16/?
    Comments:
    157
    Kudos:
    235
    Bookmarks:
    39
    Hits:
    3701
  20. Tags
    Summary

    Another successful day begins for Papyrus, until a dark, forgotten force decides to ruin not just his day, but also his future.

    Language:
    English
    Words:
    18,005
    Chapters:
    9/?
    Comments:
    22
    Kudos:
    54
    Bookmarks:
    6
    Hits:
    1626

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