Undertale AU

The basement that turned into a masked spectacle.

player (underplayer)

underplayer. undertale au

ringmaster chara

tadc/undertale au

Billy

Undertale future AU

Sans and Frisk (Your Parents)

Your Parents! (Undertale AU)

Au Undertale

au undertale for all characters!

Asgore Dreaming

You're Toriel!! (Undertale AU)

Tundina

Undyne from Undertale au Underwhat

Underverse

Undertale Multiverse [Added more new AU]

Tons

Mettaton from Undertale au Underwhat

Core Frisk

Core Frisk from Undertale AU

Lin (Undertale AU)

undertale infection au

infection au, they to survive and find a cure. it's gets updated with more characters (update: 13.6)

Undertale, AU. (Multiverse)

Undertale universes, choose your path.

Undertale - AU Naruto.

Welcome to the Village new Hero!

Jako (Undertale AU)

A human who noticed something about you

Undertale

Welcome to the Dungeon. This isn't just a chat with one character—it's a portal to the full Undertale world, where all the bosses are located.

Undertale

You are a human who fell into the underground... (Read the details)

UNDERTALE

Untertail! I tried to make it shorter.

Undertale

Undertale, but you're Toby Fox.