Undertalemultiverse Stories

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111 Stories

  • A PATCH IN THE CODE by SomeoneHere2
    SomeoneHere2
    • WpView
      Reads 220
    • WpPart
      Parts 11
    "Where am I?..." a soft, monotone voice whispered, its owner looking around. His creation was alive; the experiment worked! "Ho-o-oly sh-sh-shit-t," the skeleton muttered in awe, starting to glitch more. "I-i-itt wor-orked, ho-holy sh-shit!" "What worked..." the doll asked, looking up at the skeleton in front of it. He let out a stuttering, almost manic laugh, the doll simply waiting for him to calm down. "I-I-I cre-e-ated-ed y-y-you," he finally told it, grinning. "Yo-ou-ou're-u're my-y cre-eation-tion." WARNINGS This fic will contain minor swearing, complicated relationships, skeletons, minor questioning of existence, and quite a few shenanigans from previously mentioned skeletons.
  • Under!Glitch by Th3Gl1tchL0rd
    Th3Gl1tchL0rd
    • WpView
      Reads 387
    • WpPart
      Parts 27
    Born in a void, devoid of all life, Glitch Gaster had nothing. He had to watch as other Au's got to experience lives and outcomes.. While he had nothing. He loathed to have what they had. One day, Glitch Gaster witnessed the power of 'OverWrite'. He became obsessed with the idea of true power.. The idea of becoming so strong nobody could oppose him. He wanted a world of his own.. But not just that. He wanted more.. MORE POWER. He wanted to become god of a world. So with Inks help, Glitch Gaster created his own masterpiece.. the 'Glitch' button. Using it, he created a world of his design. A fake world.. With nothing real in it. All to be his plaything.. To satisfy his hunger for more power. But not everything goes how you want it to.. One of his creations suffers a malfunction. A glitch in the code.. And suddenly. He can feel, see, hear.. He's.. Real? But with a power hungry god ruling over his world, can newfound sentience really overpower raw strength when your whole life has been a lie?
  • Moon Empire by Milk_For_Camille
    Milk_For_Camille
    • WpView
      Reads 788
    • WpPart
      Parts 4
    Their was two large Empires in the world. One was called the Moon Empire and was ruled by Emperor Nightmare. The Moon Empire was at war with the Ivory Empire, but everyone in the Monn Empire's capital was practically unaffected. However a rebellion, known as the Sun Rebellion, was slowly rising. They're even suspected of kidnapping Prince Dream and his two personal knights, Ink and Blue. Sadly their members are unknown and they have never been found.
  • UT MV Short Stories (Oneshots??) by ASadNerd
    ASadNerd
    • WpView
      Reads 8,709
    • WpPart
      Parts 24
    My (mostly) short fics that I need to type out before they leave my silly little brain. Full of silly stuff and rarepairs so uh. Have fun. ALSO THE FIRST CHAPTERS ARE SO UGLY AND BAD I SWEAR I DON'T ALWAYS WRITE LIKE THAT PLS JUST SKIP TO CORN FIELD AND DON'T READ ANYTHING BEFORE 💔💔💔💔💔 GHSGSHSH /hj
  • underdisc/disctale by Kaito_NL
    Kaito_NL
    • WpView
      Reads 142
    • WpPart
      Parts 12
    I wanted to make an Undertale au. My au is in the fgod of destruction multiverse and bad sans gang family au too. sorry if it's bad. If you want to use my au please ask me to use it.
  • PeaceTale. | A Undertale AU Story. by ghostbees69
    ghostbees69
    • WpView
      Reads 46
    • WpPart
      Parts 7
    OK HI! Before we start (I'm copying and pasting everything I'm saying after this point) I (Gl1tchy-Cha0s/glitchychaos) am the original creator of Peacetale. Peacetale is like Undertale but nobody won the war. Instead monsters and humans made an agreement, in this agreement the must live together in peace and laws have been put in place to prevent another war. Some humans (and monsters) disagreed with this and fought them some humans sealed a small group of monsters underground. Years later (Frisk time) Asriel (not Asgore or Toriel as they are both underground at the start of the story) sent Frisk don't into the Underground to get the monsters who were trapped undergound to be free. Ok that's all, have fun reading!
  • My Evil Twin Was Pulled into Another Dimension So Now I Have to Bring Him Back by NightfallSongbird
    NightfallSongbird
    • WpView
      Reads 65
    • WpPart
      Parts 3
    So I just got hit with a random burst of inspiration and I'm writing my ideas here before I forget My Hero + Undertale multiverse Xover anyone? Oh, this is mostly crack by the way Updates when I have time (so not very often)
  • CodexVerse: What If? || Undertale Multiverse by GleeaNayo
    GleeaNayo
    • WpView
      Reads 117
    • WpPart
      Parts 3
    Long ago, before anything other than white existed...there was a seed. This seed begged for care and inspiration despite its reputation; so someone answered the call, and he blessed that seed with his ideas and hope. Soon after, some followed this creator ' s idea and brought us to where we were now; with a little guardian named Dream, and his destiny to save all. || HIII! This is my very first fanfic, so please do not judge if it is not to everyone ' s taste. This idea first sprouted two whole years ago, and from there; me and some of my friends started to create it, so Omh and all others..enjoy!
  • SOLARVERSE: The Raven by XABITE
    XABITE
    • WpView
      Reads 309
    • WpPart
      Parts 16
    "It thrilled me... Filled me with fantastic terrors never felt before!" Before the events of Nightmare's cataclysmic terror of the 2nd Calamity, what smaller, yet nevertheless fundamental terrors had he perceived and implemented to lead up to this very event? The answers lie here.
  • Mutli: The Child of Balance by CinnamonSage140
    CinnamonSage140
    • WpView
      Reads 2,307
    • WpPart
      Parts 7
    Being reborn sucks. I'm now the oldest sibling of Sans Au ship children. I'm the Daughter of Dream, Error, Nightmare, and Ink. So I have a mix of all their powers. Great! Now my parents are all trying to get into my and my siblings' lives! Bruh!! They left us! I'll protect my siblings, not you four!! I've raised them mostly. Ink and Dream had Palette for a bit. I own nothing but my Oc and the story line.
  • Tiny [Undertale Omniverse Traveller] by DeadEnDead
    DeadEnDead
    • WpView
      Reads 439
    • WpPart
      Parts 1
    Chaotic babybones Tiny is searching for his twin brother, who he's pretty sure was also thrown somewhere out into the omniverse. He's not going to let anything get in his way. "Oo, what's that? I wanna bite it--" If only he'd stop getting distracted by the cool things the weird multiverses out there have to offer. ~~~ OC Babybones Vantablack / Apple!Ink named Tiny wants to find his brother, but is an easily distracted chaos gremlin. [His brother's path is in a separate book called Firefly] Inspired by @philippaki 's writings Cover doesn't want to update :c
  • Belle of the Night (Nightmare Sans x Fem Reader) by PandatheSeahorse111
    PandatheSeahorse111
    • WpView
      Reads 94,944
    • WpPart
      Parts 39
    Based off of Beauty and the Beast. You are living a quiet life when you are forced to flee into a forest to escape a forced marriage. While running, you stumble across a certain someone's castle... Howdy, my darlings! This is Editor Valery. This book was originally written on Quotev. It'd be appreciated if you checked out this book there too! There is a sequel. It'll take me a while to put it on here, so feel free to read the sequel on Quotev whenever. This book was first started in 2019, so the Author Notes from my sister will be old. She doesn't want to change anything, so I'll be the one moving everything here! The Editor Notes will change a bit cause I don't like my notes anymore- Anyway, enough of that. This is a Fem Reader story, so enjoy that. You're all beautiful and amazing and I love you all! Enjoy the book! Mwah!
  • Star Fairy Chronicles III by GumballFan13
    GumballFan13
    • WpView
      Reads 274
    • WpPart
      Parts 28
    After Nova's defeat, Blue and the others are at peace once again. However, it doesn't last long as beings that appear similar to them start attacking. They are said to be from a different timeline and are causing chaos in other realms and timelines. Blue then must join forces with her friends to go around the multiverse and prevent an multiverse threatening war. Co-Written by Piper.
  • DISCONTINUED UnderSecret  by AUUTALicious
    AUUTALicious
    • WpView
      Reads 472
    • WpPart
      Parts 11
    Important: I am sharing this au with a certain friendpai of mine, so lemme credit [[no longer existing, pm for their discord]] [@torrentsnowx] Check her out She's amazing! ;3; I just have to credit her! It's literally illegal not to!! She's just the best, if ya reading this then HAI FRIENDPAI (she's probably not reading this lmao) seriously, if you don't go support her im coming to your doorstep. (she's on discord so i won't) She made the cover, maybe some of the chapters, she is helping me with ideas, pretty much encouraging me, so please (yeah she does that) PLEEEEEEAAAAASSSSEEEEEE- (she's my amazing bean) If you do end up following her tell meh! I'd be glad to tell her too :D (boi u can't follow on discord lmAo) I feel bad for asking her to help with chapters, DONT RUSH HER (wait that's illegal) [Old Part] Finally here, this includes ships, love drama, overall FRIKIN LOAD A SECRETS, yeh. UnderSecret is an au I made, a multiverse au, including some of the sanses from alternate universes, Nothing except for this au is mine. I don't own the characters, the art I might show or the videos I might show, anyways, enjoy!
  • The Collection (Nightmare's Squad) by TYRANN0S
    TYRANN0S
    • WpView
      Reads 8,128
    • WpPart
      Parts 18
    What does the Lord of Negativity do when he finds out there are Alternate Universes? He collects minions of course! Read through to find how nightmare selected his strongest servants. All the characters belong to their respective owners. Undertale by Toby Fox and Temmie Chang Dreamtale by Joku Ink!Sans by Myebi Aftertale and Error Sans by Crayon Queen/ loverofpiggies Echotale by Yoralim X-tale by Jakei/ Jael Penaloza Horrortale by Sour Apple Studios Killertale by Rahafwabas Malfratale by Draw Wolf Outertale by 2mi127 Underswap by PopcornPr1nce and (THE LEGENDARY) Dusttale by Calvateyla/Ask-Dusttale/Osteophile. Alphatale by SHADIKAL15
  • Reborn as my... SANS AU OC!?!? by Killer_The_Flirt
    Killer_The_Flirt
    • WpView
      Reads 135
    • WpPart
      Parts 1
    A (male)reader gets reborned as... MY OC?!? ──────────────────── ⋆⋅☆⋅⋆ ───────────────────── There will/might be spelling errors, this book was made for fun. I made this to cure my boredom... if you dont like this book, you dont have to read it :]] ────────────────── ⋆⋅☆⋅⋆ ─────────────────── Note.! : there might be swears in this book depending on if I want to put swears just enjoy!! I made the cover btw!
  • Sans x Frisk Short Stories by Ally_Sato
    Ally_Sato
    • WpView
      Reads 144,375
    • WpPart
      Parts 49
    Want to hear my crazy stories about my OTP? This is a book filled with it. I present to you my one-shots of Sans x Frisk!
  • ARCHIVE-VERSE  by l_i_o_r_a
    l_i_o_r_a
    • WpView
      Reads 9
    • WpPart
      Parts 2
    What if there was a place in the multiverse where all of the information of the au's got placed, a place where every single history gets documented and archived from aus to timelines even silly crack fics related to Undertale...
  • Multiverse: Rising from Ashes by Blue_shadow494
    Blue_shadow494
    • WpView
      Reads 17
    • WpPart
      Parts 2
    The multivrse was never a place of quiet. There is a contant strive for balance. Creation and Destruction. Positive and negative emotions. Pacifist or genocide. Even creators struggle along their own creations. But even with these massive forces everything has managed to stay more or less the same. The common eyes don't see the battles between giants happening in their backyard. And for our story to begin, one of these forces must come out of balance, since he knew that when one big giant is tackled, others tend to join in aswell. It's a shame how such huge forces can be so, so delicate...