Undertaleau Stories

Yeah sorry gained an idea on if someone became swap Gaster Also they may be apathetic or just confused on their feelings and MAYBE Autistic, I may be a bit wrong on ap...

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...

Cherry, an unusual swap-sans type, draws the attention of Dream and Nightmare when he is left the only survivor in his underground. With his Papy's gaster blasters follo...

Orphaned. Left alone, the definition of it. Like a fantasy, or a dream, saved by a being willing enough to take you under their wing and keep you safe. With secrets to b...

~cover art by me~ (y/n) (your name) is someone about 21 years old. They live alone in their small apartment when they decide they have enough of this loneliness and adop...

(Y/N) loved horror stories- true crime, creepy-pastas, urban legends. You name it, they liked it. When a walking nightmare (pun intended) showed itself to the young huma...

A person named Y/N M/N L/N moved to Mount Ebott city 3 years ago. They are now (At least) 25 years old and work at a café to earn money. But what happens if they meet th...

A change can lead to a new outcome, some worse than others or better than expected. When one's curiosity leads to a new life, do you accept the change or destroy it fro...

What if..someone from our world died and became a creator that was everywhere and nowhere at the same time? What if that someone..became dust sans friend before he joine...

She didn't really expected this, just a few seconds ago she was protecting her kids and now she's staring at a bunch of skeletons and a human with two of them looking a...

What if someone in our world becomes fresh sans? --- Story Status: [✴️Ongoing] |⚪Unedited⚫| ｡☆✼★━━━━━━━━━━━━★✼☆｡ Impressive Ranking: #128 out of 47.9k - Undertale | ⊙.☉ ...

If everything went well - a bunch of oneshots with a bunch of ships. Rules and requests inside. Also please don't leave any suggestive comments, there's a reason why thi...

⪼Beaten up and betrayed, {Y/N} dies an unfair death because of their backstabbing best friend. ≫Realizing they have been reincarnated, {Y/N} searches for a new purpose i...

Undertale aus x reader Featuring (in order): Nightmare Error Dream Ink Cross Dust Killer Blue Horror The Soulmate Au is where everyone that comes or lives there will hav...

(AU)Sanses×Reader! So many choices so little time!! Request are Open! I'm not the best writer so don't judge to much 'kay? Haha. How i write them is how i see that sans...

Slice of life and adventures with Melati!sans and his loyal companion Jasmine, together they will travel across the Multiverse as traveling Merchants. what will they fi...

adopted story. original by @Mijunaa :3 - The afterlife of a dead human that reincarnated into a Killer!Sans variant. The facade of the new owner of the body, could he k...

Cross has had it. There is only one place left for him to go and he just HAS to find it. Escaping an abusive father, he seeks the Circus. A spectacle of performers and a...

An Undertale fan gets reincarnated into the Alphatale Multiverse. Will they use the knowledge gathered from their first life to their advantage? Or will they perish, fig...

Ok...but what if I told you that I died and reincarnated as my super favorite sans?? The Fgod Error sans. But the problem for me is not that, but that I love to flirt...