Undertaleaus Stories

This Au start with a skeleton who has a special hidden magic that no other monsters in his Au have ever seen he named himself as "Sans" but in other sanses fro...

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...

(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...

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...

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⪼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...

My name is (y/n) (l/n) and I have no idea how I came here to the underground. No, really, I just woke up in a patch of flowers... Anyways, I've heard legends about mons...

Y/n is a Silver haired boy that grew up in a ruined future, a future filled with pink monsters that roam around and destroy life. He helps fight these monsters with his...

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...

You're the Ink of your multiverse, and you don't even know it. Well, until you meet the Ink of another, along with Error. -NOTES- I made the cover! This obviously isn't...

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...

The story and some of the events taking in it is inspired by Red_Knife's book : Fallen Determination. One of the best fanfic I've ever read, check it out ! Y/N, a boy wh...

𝐁𝐞𝐟𝐨𝐫𝐞 𝐭𝐡𝐞 𝐀𝐩𝐩𝐥𝐞 𝐢𝐧𝐜𝐢𝐝𝐞𝐧𝐭, 𝐃𝐫𝐞𝐚𝐦 𝐦𝐚𝐝𝐞 𝐚 𝐥𝐮𝐥𝐥𝐚𝐛𝐲, 𝐚 𝐬𝐚𝐝 𝐥𝐮𝐥𝐥𝐚𝐛𝐲 𝐭𝐡𝐚𝐭 𝐰𝐢𝐥𝐥 𝐬𝐭𝐮𝐜𝐤 𝐬𝐨𝐦𝐞𝐨𝐧𝐞'𝐬 𝐡𝐞𝐚𝐝...

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 Glitchtale, but the beginning is different. Instead of Sans being his usual self, he turns into himself from Dusttale, where he killed all of the monsters and ga...

reader is transported into an old au they made when they were younger read as they go through there daily life in a new form and dealing with new but familiar faces p.s...

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...

Cover by @magicath617 REQUESTS ARE CLOSED!!! I WAS TAKING REQUESTS FOR A WHILE, BUT I AM NOT ANYMORE! I WILL NOT DO YOUR REQUEST UNLESS IT'S REALLY COOL AND I REALLY WA...

Y/N's been traded and sold her entire life. She's learned firsthand that if you don't obey your master, you get hurt. If you force yourself to listen, you live another d...

Stop reading this it's so bad- Yeeeee. Sans AUs. This will feature some of my own AUs. For reference you can search around in my Undertale AUs Skits book. This will most...