Undertaleaus Stories

⪼A life where our beloved [Reader/REDACTED] died a very.. 'Fun' death. ⪼upon realizing their death, they'd realize that they reincarnated into error sans, a character th...

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 despit...

(On Hiatus for the time being as it's being rewritten, somewhat) A random teenager dies, and no they don't get hit by the Isekai truck unfortunately. The 'driver' could...

I got reincarnated into an Undertale Au that I made called Inclinetale ... Yup that's it, oh and I guess I have a twin now.

What if..someone became the same parasite that was fresh? Not as the skeleton, but the parasite, the thing is, when this parasite gets memories of another life and their...

You didn't have a bucket list or anything, but you wished you could've at least read a few more fanfics or done literally anything fun before dying. Oh well, at least yo...

Sans doesn't remember a time when he had his own name. He always wakes up as a Sans, but everything else is constantly changing. He is an observer meant to simply watch...

when you were walking down the street truck-kun decided it was your turn to be reincarnated Met a God who gave you three wishes strangely enough you choose to be reinca...

Lol this came to be cause of a comment in my reincarnation as ink sans story. So I'm doing it. I don't know much about ink papyrus but meh, this is fan fiction so what h...

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a love story starring two beautiful skeletons juciy and may or may not contained nsfw

After being trapped in a research facility for their entire life, babybones Cookie finally finds themself in the ocean, free to explore the place that should always have...

This is an AU where Error lost all his vision as a cruel trick of Fate. As a result, he has stayed mostly in his anti-void and causing remote destruction from the comfor...

Once upon a star a wish was heard. "I wish I had a brother who would understand me, who would be on my side, who wouldn't betray me" But sadly the multiverse d...

What if someone pushed reaper into the void while he was visiting outertale? Well nothings going to be the same since reapers no longer in the same multiverse... (Everyt...

Error was tired being "villain" title as the forced god of destruction, he went to the edge of the cliff in outertale and he jumped on the endless abyss void...

[Undertale Au's x F!Reader] Can be found in my Quotev Account --> @.FanboilingTrash | AO3 --> @.FanboilingWriter | Tumblr --> @.bdudette When Blueberry and Str...

Thanks for the votes and comments, love yous! ♡ The reader is the mother/mother figure to a specific Sans AU. This is not romantic nor is it a kink. Most of these onesho...

Y/N... She's Genderbent sans. She knows only Ink and Error. She's everything you'd think you'd find in a genderbent sans. Instead of blue magic she has pink. Instead of...

Ace has recovered from recent events. With the help of Dream of course! He stopped having hallucinations/nightmares of his brother, Joker. Or so he thought... Out of the...