"One person is interest—"
*pushes everything off the table* OKAY
Underswap - an water themed underground with compassion being the theme of it
Underfell - a more rocky themed underground with trust being the theme of it
Swapfell - also water themed but more treacherous with reliance being the theme of it
Fellswap - rocky and ice themed underground with kindness and secrets being the theme of it
Horrortale - same setting as undertale but more nature overgrowth. set in a pacifist ending timeline but frisk and flowey couldn't break the barrier. healing is the theme of it
Silly goofy AUs involving all skelebros (and sonas of course I can't forget)
Mermaid Pirate AU - this is like a two-three year old AU but it holds a special place in my heart because of the friends and memories i made from it. but it's full of political intrigue, pirate shenanigans, powerful, ancient magic all around a world where the world is transitioning into something of an industrialized world
Island AU - deeply inspired by Coral Island (that one farming sim where you do farming on an island), monsters and humans live on an island and begin to make efforts to clean up and save their home from, you guessed it, capitalism. but also there's some secrets about the place
Westward AU - a fusion AU of pirates, samurai, cowboy, some mafia, and farmtale all in a modern setting because fusion AUs now have me in a chokehold for some reason. but anyways, the story is that a lot of interested parties have a peculiar intrigue towards a small, sleepy town that holds a secret. and you (or my sona) are just a farmer who is about to get sucked into it
Spider-Man AU - i mean. this is straightforward. but imagine my sona/Papyrus/Sans as spider-man. despite the simplicity, it still plagues me because i love spider-man
Mafia AU - also straightforward but with a twist where not all characters are in a mafia and it's also set in a modern setting
Band AU - let me just have a rockstar papyrus please do not perceive me—
Dancetale - also pretty straightforward. might need to think a little more deeply on it
Outertale - you ever think they are living on a planet or a space station, and do you ever think of different plant life and creatures and how monsters might develop different things and—
Dragon AU - ............................... they are dragons and no i totally didn't make this au because i really like dragons—
Avatar AU - also straightforward. have yet to decide whether it loosely follows last airbender or korra or just make my own plot. have you noticed this trend where i just combine a lot of my favorite things?
Ghost Hunters AU - listen i hate ghosts and horror and thrillers and suspense but i also love the hijinks of scooby doo and really like mystery skulls animated so imagine this just being scooby doo themed
Cyber/Neontale - yes................ the pretty vibrant colors got to me but also i just really like the theme of fighting against the man. also papyrus (pyrus) in this is a gamer/hacker and sans (lux) is a leader of a resistance group and he has the doc ock arms
Papyrus is/was Gaster AU - straightforward and based on a theory. have yet to develop the ideas and story but i had designs
Outcodes - some are canon adjacent but also i have made variations to them and also made other characters as outcodes because i just want to flavor up the multiverse
I think that might be all of my AUs so far but I'm sure my friends will tell me if I'm missing a few
But yeah that's the gist/summary of them so far! Let me know what you're interested in and I'll provide the details (or some details)!