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1.2K Stories

  • Reincarnated as a Voice by IHamTiredAndBored
    IHamTiredAndBored
    • WpView
      Reads 493,977
    • WpPart
      Parts 48
    TW: Swearing and slight gore Y/N reincarnates in the anti-void as a Voice... Will he befriend error or will they make them hate their guts? And will they meet other people? Only time will tell. Hello, this is going to be my first book and idk if it's going to be good so meh :v This story was inspired by transported as a voice by Virus_bOi, I obviously do not own undertale and I don't keep up that much with the fandom, so some personalities might be different, but hey. I can just say that it's a different multiverse ¦ ] The cover image is from Shira Wolfiecute on tumblr
  • Reborn as Error by Kiwi_Seal
    Kiwi_Seal
    • WpView
      Reads 994,357
    • WpPart
      Parts 194
    Cover image made by me. Someone meets their end too soon and meets someone who gives them another chance to live a more fulfilling life. One that they would enjoy despite the problems that may come along. In other words, reader becomes Error.
  • how the bad sanses accidentally adopted an parasite  by Andy_the_badSans_fan
    Andy_the_badSans_fan
    • WpView
      Reads 1,321
    • WpPart
      Parts 17
    the bad sanses do a raid on an illegal auction of many rare, dangerous, and illegal things. but after the dust settles, killer finds what he believes to be a weird mutated cat and decides to take it back with him art by me. my first book, and feel free to correct my spelling in the comments
  • My Lovers Were My Enemies by ImThatOneQuiteKid
    ImThatOneQuiteKid
    • WpView
      Reads 8
    • WpPart
      Parts 2
    Another day goes by working with Dream and Ink Another day dealing with his brother Another day he gets left behind Another day and he's room is being occupied by another swapped variant Wait why is there another him in the stars base??? Ink and Dream abandoned Azure in another collapsing AU but when he returns to the base, he finds his area is occupied by another him but smaller and looks like an absolute nuisance with how much positivity is radiating off him (makes sense why Dream would pick him for his energy) He goes to talk about it with the others of the group, but it turns into a big fight which leads blue to be trapped in an isolated AU left to die till someone from the shadows goes to pay him a visit --------------- I did not make these characters I simply did some fine tuning to make them how I like them also the cover art is not mine I found it off Pinterest. Please do comment it feeds my motivation and this story is posted on Ao3 as well (IM THE ORIGINAL WRITER ON HERE AND AO3)
    +9 more
  • A Jaded Emerald [NOT LOOKING FOR ART COMMISSION] by KTama20
    KTama20
    • WpView
      Reads 7,733
    • WpPart
      Parts 31
    Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways. *Edited Summary (29/09/2025)
  • A Hermit Monster In Mewni by Itsvnzla2
    Itsvnzla2
    • WpView
      Reads 545
    • WpPart
      Parts 20
    After falling in battle against Chara and losing everyone in the Underground, Sans awakens in Mewni, a strange world ruled by ancient magic and wild creatures. For three weeks he survives alone in a cave as a hermit until witnessing an important event: the birth of the kingdom of Mewni, where Glossarick grants the first magic wand to the settlers, beginning the history of the kingdom
  • You and Your Bitty Pals by Blueprint15778
    Blueprint15778
    • WpView
      Reads 236,451
    • WpPart
      Parts 62
    It has been 10 years since the monster broke free from the barrier, and since then monsters and humans live together in peace. But for some reason, monsters have somehow got a mini version of themselves, no one knows how or why it just happened. And for some reason, the skeleton bittys are popular because of their many different versions. You are a 19-year-old girl who lives in New York City in your apartment the problem is that you're all alone( if you're wondering if your family is alive, you just live far away from them), you have a small dislike for people. You wish you could get a Bitty to hang out with it, but the problem is that it costs a good amount of money. So you could never get one or so you thought until one day you find a strange box. This is my first time posting here so I hope you enjoy it! Also note there is some swearing. Note the cover does not belong to me. It came from https://undertale-au-fanon.fandom.com/wiki/Bitty!_Sanses By The Edit Lord Also I do not own any of the characters. Undertale belongs to Toby Fox.
  • Diamond Pearls by LylouChanSeven
    LylouChanSeven
    • WpView
      Reads 1,732
    • WpPart
      Parts 29
    [HIATUS] Emilie (Reader) is a gentle and kind person who is on the verge of a mental breakdown due to the mistreatment of her boyfriend, Jericho. Manipulative and narcissistic, her boyfriend becomes Papyrus' best friend. She thinks her fall will never end. But in the midst of all this emotional fuss, Sans will be like a lifeline in her miserable life. Yet, will it be the same for the little skeleton? Will our beautiful girl represent his only salvation or eternal damnation for his lost soul? Part 1 : The end of all things is synonymous with renewal (Chapter 1 to ??) Part 2 : Building on a Non-Solid Foundation (Chapters ?? to ??) Part 3 : Repenting through a path full of thorns (Chapters ?? to ??) ---- Basically, it's a story I wrote in French and that I'm trying to translate, with the help of lookitsasnake! I'm sorry in advance if there are mistakes!
  • Judgment After Zero by Malta335
    Malta335
    • WpView
      Reads 1,847
    • WpPart
      Parts 14
    The genocide route ended in a bright hallway. Sans lost... And something followed the reset. Itsuka Shidou begins to experience dreams that aren't his, instincts he never learned, and reactions no human should possess. As Spirits descend and spacequakes tear his world apart, an unseen presence watches from inside his mind-silent, tired, and all too familiar with death. This time, there are no resets. Judgment comes after zero.
  • Love Triangle~Dream x Reader x Nightmare by SANNESSSS
    SANNESSSS
    • WpView
      Reads 1,847
    • WpPart
      Parts 7
    You are a sad, lonely girl. Your only friend lives in the woods, A) bc her being a monster would mean instant death by villagers, and B) to protect people from her split personalities. So you have a lot of magic abilities(all in due time) and the villagers find out. Believing you are a witch, they set off after you, so as to kill ya. But when mysterious people-er, skeletons arrive, you may just be in over your head...
  • Hybrids are Bonely by Seer_Luna
    Seer_Luna
    • WpView
      Reads 210
    • WpPart
      Parts 3
    There's one person who found grief after Asgore took their mother's human soul. This person's father blamed it on them. He was a monster. He abandoned her. He said he would kill her if she came around him. So this girl used a device of the great royal scientist, W.D Gaster, and traveled to another timeline. This one followed one rule. Kill or be killed.
  • Nightmare (An Undertale Fanfiction) by LucyTheDragonslayer
    LucyTheDragonslayer
    • WpView
      Reads 36,484
    • WpPart
      Parts 9
    In a world where only the strong survive, there is me. I'm not strong, or a survivor, but I'm still here. My parents have kept me hidden from the world, never letting me leave the house. My parents aren't cruel people, they keep me hidden to keep me safe. They have always loved me. Until one day when I ask to go outside. Something inside them snapped and they beat me. That was my first punishment, one of many. It's been years since then and I've finally escaped. Of course I was caught, but I had a moment of freedom. I, however, am no longer wanted after my stunt, and are taken on a camping trip. On this trip, my parents pushed me into a gapping hole in the ground. I fell into the Underground. Where will my life go from here? ____________________________________ This is a reader insert, but I will try my best to avoid using (y/n) and the likes. All the Sans-es (except Underswap!Sans) are evil-ish. Loli!Reader, Innocent!Reader, Abused!Reader, Undertale!Sans, Underfell!Sans, Underswap!Sans, Gaster!Sans. ____________________________________
  • Reborn [Error!Sans fanfic] [Fgod] by ERROR_F4N_FR34K
    ERROR_F4N_FR34K
    • WpView
      Reads 183,702
    • WpPart
      Parts 22
    [Cover belongs to me] Error is the (forced) god of destruction, Ink is the god of creation. Both are needed to keep the balance, but while one is loved the other is hated. Ink together with the judges elaborated a plan to finally stop Error. A deadly trap. Impossible to escape even for the feared destroyer. But someone is not following the plan. Things get out of control. Error gets out of control. Although things don't go exactly as planed, and the results are more chaotic than they should. It still worked. Error was finally gone. Lost into the VOID, scattering across time and space. But someone had their eyes on the broken destroyer for a long time, and they were waiting for this moment. Now they can finally act. And take care of their chosen child. ... Error woke up at the sound of his own crying. What? What's this sound? Why can't he speak? Wait, where is he? Why can't he get up? ...Uh? Why is he... so small? ...what happened to him? _________________________________ - Error!Sans is a variant of the character Sans from the game Undertale. Error!Sans was created by LoverofPiggies aka CrayonQueen - This story is inspired by 'Healing what has been broken' by harrish6. Although it happens in a different way, Error will still fall into the VOID. But instead of just falling into a different Multiverse something else happens. - fgod Error concept belongs to @harrish6 - Undertale belongs to Toby Fox Mar 10, 2020
  • The Sun and Small friends- ON HIATUS by Lady_Cloudsong
    Lady_Cloudsong
    • WpView
      Reads 13,485
    • WpPart
      Parts 27
    I am so into Undertale it is unreal. Same goes for Gt. Then I was like, WHAT IF THERE'S UNDERTALE AND GT TOGETHER And then I had a mind-blow and started typing. *** Sans, your typical lazy skele. A depressed borrower. One pet shop. Two Souls. Also one author trying to make their description sound badass and failing miserably*cries*. PLEASE VOTE & COMMENT, I LOVE FEEDBACK!
  • The Boney Hero (Sans x BNHA crossover)  by DontAskImN0body
    DontAskImN0body
    • WpView
      Reads 158,021
    • WpPart
      Parts 52
    At a genocide run Sans unexpectedly wins against ¿Chara? and something strange occurred, the timeline was thrown into chaos. As a result of this chaos, Sans unknowingly was brought to the world of My Hero Academia where lies a world full of quirks. Now we will find out what journey is to unfold with Sans now in this world. Welp this is my first story... so yea..... im pretty sure I'll make a ton crap of mistakes basically typos everywhere.. sooooo just bare with me okay? I'm also always running on boredom and laziness while writing this. Also this is fucking cringe... Welp um..feel free to drop your ideas I'll definitely consider them... ¯\_(ツ)_/¯ Also this story is definitely not original and inspired by a lot of different other stories that came before it {!Completed} .
  • 𝕌𝕟𝕕𝕖𝕣𝕥𝕒𝕝𝕖 𝕆𝕟𝕖𝕤𝕙𝕠𝕥𝕤+𝕊𝕔𝕖𝕟𝕒𝕣𝕚𝕠��𝕤 ~ℝ𝕖𝕢𝕦𝕖𝕥𝕤 𝕆𝕡𝕖𝕟~ by Yeayoudidntseemehere
    Yeayoudidntseemehere
    • WpView
      Reads 13,486
    • WpPart
      Parts 48
    !!! ART IS NOT MINE!!! Artist: @madelezabeth on Twitter Hi! This is my first book so please don't be too harsh😅 ! Requests open ! Hope you enjoy :) 1# IN TORIEL LET'S GOOOOOOOO!!!!!! 𝙄𝙛 𝙖𝙣𝙮𝙗𝙤𝙙𝙮 𝙞𝙨 𝙧𝙚𝙖𝙙𝙞𝙣𝙜 𝙩𝙝𝙞𝙨 𝙖𝙣𝙙 𝙞𝙩'𝙨 𝙉𝙊𝙏 𝙤𝙣 𝙒𝙖𝙩𝙩𝙥𝙖𝙙. 𝙋𝙡𝙚𝙖𝙨𝙚 𝙜𝙤 𝙧𝙚𝙖𝙙 𝙞𝙩 𝙤𝙣 𝙒𝙖𝙩𝙩𝙥𝙖𝙙, 𝙄 𝙙𝙞𝙙𝙣'𝙩 𝙘𝙤𝙣𝙨𝙚𝙣𝙩 𝙩𝙤 𝙞𝙩 𝙗𝙚𝙞𝙣𝙜 𝙥𝙪𝙗𝙡𝙞𝙨𝙝𝙚𝙙 𝙖𝙣𝙮𝙬𝙝𝙚𝙧𝙚 𝙚𝙡𝙨𝙚! !!NOW ON Ao3!!
  • Glitch and Squid by RandomReaderOnHere1
    RandomReaderOnHere1
    • WpView
      Reads 80
    • WpPart
      Parts 7
    Just a story about Ink Sans and Error Sans going on an adventure to find a soul for Ink. They'll meet enemies, friends, and they'll grow as friends and more than that along the way. This is a romantic story as well as my first time writing a short story like this one, so I do apologize if it isn't the best quality. Also I'd like to mention a lot of this I last edited back in early August of 2022 and only did I just finish chapters 6-7 recently. I do not own any of the characters used in this story nor am I the creator of the art used as the photo (I found it on Pinterest a long time ago so i am unaware of the creator of the art!)
  • Au sanses meets militarytale (my Au)  by TheBigBadassEmperor
    TheBigBadassEmperor
    • WpView
      Reads 45
    • WpPart
      Parts 3
    This is my first ever story with my own oc and au Miley or General As her (and yes it's a her) family/soldiers call her when on duty from militarytale it's based on well if you couldn't guess is a military style au were instead of being a kingdom it's pretty much a big military base well what happens when the au sanses discover her world what will she do and will she find love and get help with her depression? Will they find out her secret? Find out in militarytale ------------------- As I said in the beginning this is my first story so expect bad grammar and (hopefully not) a rewrite if it gets to bad also I will be reading comments to help improve my story if you notice something wrong or think there's something wrong then comment on it thank you for understanding and have a great day or night Also this is a Au x oc depressed fem!sans fanfic that also hopefully will have a few twists. Also if you have any ideas for the story comment please also I will try to update when I can
  • Sans X Reader~When the underground finds you, let it take you. by SupposedlySuicidal
    SupposedlySuicidal
    • WpView
      Reads 69,325
    • WpPart
      Parts 24
    <SPOILER: DISCONTINUED (yeah, I didn't update for like 4 years)> Have you ever thought about what it could be like as a hybrid? Ever think what it would feel like to lose your parents? To be hunted down every day of your surface life? What if that question could be answered? Well I've got an answer for ya. It can. So, when the underground finds you, let it take you. . . . So...Heya.The names Stitched, Stitched the human and this - if you can't already tell - is my Sans X Reader. That was just a bit of a cheesy intro into the book... I really hope you guys enjoy this! . . . By SupposedlySuicidal {I'm off to bed I need sleep.}
  • A God's love - A Crossmare story by Midnightgacha8
    Midnightgacha8
    • WpView
      Reads 14,238
    • WpPart
      Parts 83
    Going for a mythological theme, almost, with my own spin on it. kinda inspired. This Crossmare story. It's not uncommon for God to play, befriend or even toy with other mortals. But rare it is for a God to ever do more than just that. for some Gods, falling inlove and marrying a mortal was unheard of, very uncommon, a mortal and a God may never bare children or fall inlove as some say it is forbidden. Nightmare finds himself in this predicament, a mortal guard catching his eye, he couldn't help but grow fond of this mortal. Cross never thought he'd ever catch the eye of a God, especially one like Nightmare, scared but stubborn, Cross tried to balance his life.