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254 Stories

  • Love is Dead -A Kustard Story by Toaster_Draws
    Toaster_Draws
    • WpView
      Reads 31
    • WpPart
      Parts 1
    As Red and Classic continue their relationship, Classic starts to distance himself from Red. Red confronts Classic about this and they argue about it. See what happens next...
  • Balanceverse ( An Undertale Multiverse ) by Kano_Remi
    Kano_Remi
    • WpView
      Reads 257
    • WpPart
      Parts 3
    " Never have I ever thought that something so important like our coding could be affected by the balance. " ---------------------------------------------------------------------------------------------------------- Credits: Toby fox- Made Undertale ( toby you amazing dude ) Ink Sans- Made by Myebi ( Comyet ) on Tumblr Error Sans- Made by Crayon Queen on Tumblr Nightmare Sans and Dream Sans- Made by jokublogs on tumblr Cross!Sans and Cross!Chara- Made by the cool Jakei Penaloza Killer Sans- Made by Rahafwabas on Tumblr Horror Sans- Made by Sour-apple-studios on Tumblr Dust Sans- Made by Calvateyla on Tumblr/Twitter Underswap Sans ( or blueberry )- Made by p0pcorn pr1nce on Tumblr Dang all the amazing people practically live in Tumblr, maybe I'll make an account too lol Oh yeah! If you would like to support me or check out my art, I'm kano_remedy on Instagram ^-^
  • Undertale: Endless Pain by RandomManOnTheNet
    RandomManOnTheNet
    • WpView
      Reads 45
    • WpPart
      Parts 2
    Many Genocides have been completed... sans has gained knowledge of the constant loop, and has formed a plan for the next reset... T H E R E W I L L B E N O S L A C K I N G T H I S T I M E Disclaimers: I do NOT own Undertale, Undertale is by Toby Fox Undertale: Endless Pain is by me... if i find anymore inspirations that i add to this AU, i will make sure to credit them here
  • I love you a skeleTON ( sans x chubby reader) (discontinued! Sorry!) by SierraColor
    SierraColor
    • WpView
      Reads 184,275
    • WpPart
      Parts 31
    Mainly what the title says. Lots of Sans, ton of SANS, Undertale sans, undefell sans, ALL THE SANS. BUT WITH A CHUBBY READER. WHHHAAAAT I KNOOOOW. READ FOR THE FLUFF THE CUTE FLUFF. (BUT IF YOU WANT SOME LEMONS HONEY, YOU GONNA HAVE TO WAIT TILL I GET THOSE IN ANOTHER BOOK. ;) ) Also, there will be a request chapter, I won't take all requests, but I will take some. ALSO CAN I JUST THANK YOU GUYS FOR 23k?!! LIKE WHAT?!! (Tbh if we get to 25k I might just continue that little one shot y'all keep requesting for me to continue to there's that.)
  • Time Stops For No One by Magyka13
    Magyka13
    • WpView
      Reads 12
    • WpPart
      Parts 1
    So, I did a thing...it's rly sad i almsot cried typing it. edit: I lied I actually cry every time Runix is essentially immortal.
  • The AoD2 History Book!  by Snacc_Cracc04
    Snacc_Cracc04
    • WpView
      Reads 532
    • WpPart
      Parts 6
    And behold, the behind the scenes and random stuff book for the AoD Crew. This story will alternate from script form to story form, depending on my mood. But this will probably be more story form than script so,,,,e h- Why, you ask, did I make this? Well, I have three words that will answer your question perfectly, my friend! . . . I Don't Know!
  • Sanscest OneShots by ArekkaDorowazu2018
    ArekkaDorowazu2018
    • WpView
      Reads 551
    • WpPart
      Parts 2
    May Contain the following: Skele-Mpreg Smut/Lemons
  • Little Lamb | OVERTALE | Human!Sans x Monster!Frisk  by AnouNyam
    AnouNyam
    • WpView
      Reads 40
    • WpPart
      Parts 2
    Frisk weren't capable of speaking language human could understand! But she met a really nice guy after she got out of the Ruins! --------------- OVERTALE - Humans wins against monster. So Frisk is basically on the surface when she got onto the human side! - AdultxAdult Cover drawn by me, @nntsu._
  • Bonehead by punmomster
    punmomster
    • WpView
      Reads 397
    • WpPart
      Parts 2
    ( sans x reader ) Alone, forgotten and scared, you thought you were at the end. Will you find out who you really are in this odd world? This odd place you will soon call home and the people in it you will call friends and maybe more? ( All art goes to original owner )
  • The More You Know by Do_You_L0VE_Me
    Do_You_L0VE_Me
    • WpView
      Reads 311
    • WpPart
      Parts 2
    Y/N is quite possibly the biggest Undertale fan there is. She knows just about every detail about almost every AU. On a completely normal Sunday, Y/N opened her laptop and begun to play the one and only Undertale. While walking throughout Snowdin, her game crashed. As she tried to log back in, she found that all the characters where gone. Their sprites we're just black glitches and the text wouldn't even come up. It was like everyone had disappeared. Confused, Y/N decided to just watch someone play it on YouTube. But as she searched, she couldn't find anything related to the game. She checked Instagram, Wattpad, Tumbler, everywhere, but it was as if the game itself never existed. Y/N Couldn't get any results for Toby Fox. She even called her best friend who was also a fan, and when she asked, her friend questioned what she was talking about. Blown away, she tried to open her game again, only to find it gone. All of her fan art she had drawn was replaced by empty papers, all the photos she saved were deleted. As one final test, she googled, "Mount Ebott" To her surprise, the same rumor about the mountain popped up without any trace of the game. Digging deeper, she searched the location of the mountain and found it to be right next to her city which had been renamed, "Ebott City". With adrenaline pumping through her veins and a fangirl pit in her stomach, she grabbed her shoes and ran all the way to the mountain. Just like every fanfiction she had ever read, a hole sat on top of the mound of land. Standing on the edge of the black abyss, she knew that if the rumor wasn't true, and neither was her theory, she would be dead. And even if she was correct about what was down there, if she didn't the SAVE and RESET button, she would die. Hell, she didn't even know what AU she was in. It could be horrortale for all she knew. But it was a risk that every Fangirl was willing to make. Her completely normal Sunday was about to get not so normal.
  • THERE'S SOMETHING ABOUT GASTER by Orgaster
    Orgaster
    • WpView
      Reads 277
    • WpPart
      Parts 1
    Humorous Sanster. I made this on a plot generator, please don't murder me. not NSFW, so enjoy. (I will possibly write a full sloppy-ass story of it later.)
  • LOFIVERSE (Underwave) undertale fanfic by Gayyyyyyyboi
    Gayyyyyyyboi
    • WpView
      Reads 32
    • WpPart
      Parts 1
    Lofiverse/underwave is a timeline where undertale never happened. Peace was brought between humans and monsters as two race sign upon a contract. A contract of never using magic again, and thus monsters were being watched living a small town beside the enormous human population. The central city. This is the timeline of 2010, where vintage aesthetic was the trend and the Great Depression was brought into many monsters lives. Including our main character, Milo, Vince, and August. Three skeleton brother who depends on each other throughout their lives struggling with financial problems, family relationship and social acceptance.
  • Reminiscent (Sans X Skeleton! Reader) by LivBop
    LivBop
    • WpView
      Reads 23,632
    • WpPart
      Parts 17
    {Completed} {Will not be edited} Reminiscent {adjective} - Reminding you of people or experiences in your past. ☝︎✌︎?︎❄︎☜︎☼︎ WDG - 1S WDG - 2P ?︎⚐︎☠︎❄︎ ?︎✋︎☜︎
  • Undertale : One Shots 2024 【PROSHIPPING】 by AnouNyam
    AnouNyam
    • WpView
      Reads 208
    • WpPart
      Parts 3
    Frisk! Stay determined... It's 2024! Why are you still reading undertale fanfic?!? Don't you have anything better to do!!?? Despite the harsh reality that has got you overthinking.... You remained determined. .............................. WARNING Proshipping fic Silly one shots.
  • Will x Brandon420: A tale of edgy gaymers by HowToChangeUsername
    HowToChangeUsername
    • WpView
      Reads 82
    • WpPart
      Parts 3
    For legal reasons, this is a joke.
  • The Only One Like Me (Sans X Reader) by LunarEclipse0823
    LunarEclipse0823
    • WpView
      Reads 34,041
    • WpPart
      Parts 17
    Not everyone is special enough to know exactly where the Underground's secret entrance is. Not everyone is so special as to accidentally fall into it, either. Of course, that is what the Reader did. They meet the whole gang, and one skeleton in particular stands out from the rest, simply because he's the only one like you. Agh! I'm spoiling the story! Well, if you want to know more, you'll have to read on to find out! As per usual, credit goes to Toby Fox for making Undertale and its characters. Art is not mine, either. OH MY GOSH. #1 in sansxreader?! I CAN'T - I CAN'T EVEN -
  • Rated G - Frans by WattaTopWriter
    WattaTopWriter
    • WpView
      Reads 5,848
    • WpPart
      Parts 8
    First of all this isnt rated G like G like general. Its rated gaster!sans. HAHAHAHAH GER LT IR??!?! Echotale Frans! I hope you guys enjoy this story! So heres the description: Frisk, just a normal avarage human, meets a very suspicisous skeleton, G. She agrees to help him, little did she know his story. G and Frisk go on adventures together, as they develop a relationship together. Frisk agreed to help G escape from the royal guard as long if he returns her something. But what?
  • Unusual Nightmare by AwesomeSaucePrussia
    AwesomeSaucePrussia
    • WpView
      Reads 8
    • WpPart
      Parts 1
    An Undertale short story. I came up with it two nights ago and have been writing it since. I thought it was cute, and I hope you enjoy. There are no ships, so if you came here expecting some, you'll be disappointed. :)
  • The Misadventures of Sans Undertale by SadManMcGee
    SadManMcGee
    • WpView
      Reads 133
    • WpPart
      Parts 2
    Sans Undertale goes on wacky misadventures throughout the known multiverse.