Underfell Stories

This is based around UnderSwap, which was created by Popcornpr1nce. The main character is Sans the Magnificent! As he falls through a different realm that looks from his...

(Surface/Multiple AUs) Red and Edge hadn't talked in years. Not since that big fight around 6 years ago. Edge now worked for the police and Red...what was Red doing? For...

AAAHHHH

(Reader x Undertale aus) Two brutal and psychopathic scientists meet on the battlefield of the human and monster war. They fight, fall in love(one of them does that is)...

It's been a six years since you and the Skeleton brothers moved into the Ruins, claiming one of the old houses in the city as your own. Astigma has another brother now...

◃───────────▹ (Y/N) was exploring the infamous Mt.Ebott on their own. They ended up falling into the Underground, world of monsters, adventuring through it. They met man...

After many genocides Frisk finally broke free from The Players control, she did a pacifist route and gave everyone the happy ending they all deserved even giving Chara a...

Mostly sans

You could barely deal with two skeletons, how the fuck do you deal with- wait, how many ARE THERE? aka, everything falls to shit real quick.

(Official Rewrite of Wanderer, my Underverse Reader Insert Fic ! ! !) You were bored out of your senseless mind. You didn't know any better than to get involved in a sic...

You're best friends with Error, and you both had just started to develop feelings for each other. But than you meet the Bad Sans, a whole lot of love drama happens.

I have nothing better to do with my life.

|Remake of the BittyTale × Reader story| ♡There will be more lore inside and the story will be longer♡ ♡Will it have the same ending? I'm not too sure yet♡ ♡Will it fo...

It all started with an overheard conversation, then an idea that was carried all the way to you. You had built these walls for a reason (both emotionally and physically)...

Y/n is a big fan of Undertale and its AUs. One day, he found himself in a blank void with a strange girl who looked familiar. He wanted to talk with her but was instead...

this book will keep updating

A multiverse I made and the story This multiverse has humans and monsters. Some lack magic and are called Monsters and humans, some have magic and are called sorcerers...

To put it plainly: you're on the run. Unknowingly tangled in puppet strings from skeleton hands. Obsession and possession haunts you without you even being aware - only...

(There may be some Undertale or other AU shippings in this story so let me know or comment what ship you wish to be included, thx! There might also be some sensitive thi...

(ᴠᴀʀɪᴏᴜs sᴀɴs ᴀɴᴅ ᴘᴀᴘʏʀᴜs ᴀᴜs x ʀᴇᴀᴅᴇʀ) ||ᴀɴᴅ ᴛʜᴇɴ ɪ ɢᴏ ᴀɴᴅ sᴘᴏɪʟ ɪᴛ ᴀʟʟ ʙʏ sᴀʏɪɴɢ sᴏᴍᴇᴛʜɪɴɢ sᴛᴜᴘɪᴅ ʟɪᴋᴇ "ɪ ʟᴏᴠᴇ ʏᴏᴜ."|| Life was merciful enough to grace you...