Here are some Au themes I found when exploring the SoundCloud website. Enjoy.                                   
Rules for this Au Playlist:                                              
1. If there's a new version of the theme that sounds better, that theme will be replaced with the new version.                                                                     
2. If a Au theme haves a motif that similar to that theme, it won't be added to this playlist.                   
3. If an Au theme sounds so bad that it should get a V2, it's added to the bottom Best to Worst themes

Update: I Updated picture because that other one was outdated.

An Once Upon A Time Undertale AU Compilation 2025

* PAPYRUS  60 ATK 15 DEF
* He does not, in fact, like to say "NYEH HEH HEH!"
* The jury's out on whether he used to or not.

Furtherfell is a series of AU’s, set after Canon Underfell's various hypothetical neutral endings. It is based off of the concept of Aftergore, and has the same protagonist in the new human, Nex. This may differ in some points from Underfell, whether it be due to there being no information yet or simply things we decided to change.
"Furtherfell - Rethroned" follows on from an incomplete pacifist ending. Toriel comes out of hiding, and establishes herself as “Mother” of the underground, making swift changes to how things work. She maintains a strict rule, attempting to prevent another reign of tyranny. Humans are to be treated with kindness, and to be delivered to the Queen. 

Papyrus takes the role of Undyne! After Undyne was demoted, he took the rank of captain of the Royal Guard, appointed by Toriel. Due to his new position, he's fallen further into his role of an edgy, almost cartoonish villain, although his kindness occasionally breaks through this. However, beneath this surface-level evil is a much more serious motivation...

Track by @spudward

Thumbnail by https://twitter.com/UnShulff

Sprite by The Prophet (with adjustments by Penny):
www.pixilart.com/prophetofgaster/gallery

AU description is also by Penny:
https://pocketpennytm.tumblr.com/

Aftergore was created by Slick Silver and DashingToadie, and the content is uploaded to their shared account here:
https://soundcloud.com/toadiedoesalltheworktbh

Join the AU's Discord Server here (if you'd like):
https://discord.gg/sma6J7wxKc

[OUTDATED] [FURTHERFELL - Rethroned] Tyranny and Terror (Spudward)

*We have made a deal beforehand, lunkheaded lightners!
*You would not forage for the angel amidst a fateful moment.
*Into the bargain, I would not pounce upon you.
*But despite that, you are just too stubborn to engross yourself in our negotiation.
*Very well then, lightners.
*If "rescuing" this angel is what you're yearning for.
*Then I reckon I must jump back to violence.
*In a little while, you two will kneel before the king.
*And you will accept your final blow!

This is the "Vs Lancer" replacement

This is a Deltaswap take of mine and it is not for your AU. Please do not claim it as yours, although you are allowed to extend this song, provided you give credit to the original creator. Ask beforehand.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Introducing "PROSEMOOR". A complicated opposite of Deltarune itself. It's named that way instead of an anagram of Underswap or simply Deltaswap. The relevant swaps for now are listed below:
• Asriel - Kris
• Alphys - Toriel
• Noelle - Susie
• Rudy - Asgore
• Frisk - Ralsei
• King - Lancer
• Rabbick - Rudinn
• Bloxer - Hathy
• Seam - Jevil
• Puzzle Guy - Clover
• Starwalker Bird - Scissor Dancer
• Ponman - Jigsawry
• Malius - Top Chef

• Empty Town - Card Castle
• Scarlet Forest - Field of Hopes and Dreams
• The Cliff - The Great Board
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
King of Spade takes the role of Lancer. He rewards Lancer a "son of the month" and lets him rule the entire kingdom for one day. Inevitably, he has to deal with those scums who muck around with his kingdom and stop them from trying to hail hard knocks on his land, at least that's what he thinks. While he prides himself on a monarchical role, he can be one hell of a jerky oppressor and even put the heat on people to commit to spadework. During Asriel's adventure throughout the dark world, the king will actually be the one to louse up his own domain and lay the blame on lightners for it. As an angel falls from light, the king immediately kidnaps her in order to set darkners free. And that is out of desperation.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif:
-Chaos King

Whether Deltaswap should exist or not at the moment. In the end, this is just a fun little project I'm making.

[Deltarune AU][PROSEMOOR - King] Vs The Cruel Tyrant

* NAPSTABLOOK! GET THOSE TWO OUT OF HERE!
* i.... i can't....... you're blocking the way.......
* OH...
* OH CRUEL FATE! I TRY TO CHANGE, YET CANNOT ESCAPE MY HUMAN-KILLING ROOTS!
* (NO, THAT'S PROBABLY TOO DRAMATIC.)
* I... I'M SORRY FOR WHAT'S ABOUT TO HAPPEN.
* I'M TRYING NOT TO, I'M PLEADING TO RESIST...
* BUT I JUST CAN'T STOP MYSELF FROM KILLING OUR SPECIAL GUEST!

Furtherfell is an AU, split into several branches, portraying the various hypothetical neutral endings of the 'canon' Underfell. In this instance, 'canon' refers to the version on Tumblr, created by the infinitely talented Fella. They don't actually consider it canon, but for Furtherfell it most certainly is. It can be found here (https://underfell.tumblr.com/)
It is inspired by the concept of Aftergore, though only in concept and not in execution. Our story follows a human by the name of Hare, entering a world they do not understand, that has been forever changed by the actions of someone they've never even met.
We won't be 100% accurate to Underfell; some elements may be changed, either due to a lack of information or just due to us wanting something to differ.

"Furtherfell - Rethroned" follows on from an incomplete pacifist ending. Toriel comes out of hiding, and establishes herself as “Mother” of the underground, making swift changes to how things work. She maintains a strict rule, attempting to prevent another reign of tyranny. Humans are to be treated with kindness, and to be delivered to the Queen.

In Furtherfell R, Mettaton doesn't want to kill the Human anymore. He's turned a new leaf, realised the error of his ways and that everything he has down here is more than enough for him. However, Dr. Alphys has other plans, and is using what little power she has to remote control him, forcing him to use his vast array of techniques to brutally murder the Human. Mettaton does his best to protect you from himself, but there is only so much control he has left.

Song by @spudward, as well as the dialogue and character description for Mettaton!

Sprite by PrinceYriel, with some adjustments by Penny, https://pocketpennytm.tumblr.com/

Mettaton design by Penny, as well as the thumbnail and logo.

Aftergore was created by Slick Silver and DashingToadie, and the content is uploaded to their shared account here:
@toadiedoesalltheworktbh

Join the AU's Discord Server here (if you'd like):
discord.gg/sma6J7wxKc

[FURTHERFELL - Rethroned] Remote Controlled Carnage (Spudward)

Inspired by Kibo ver
Art:
https://twitter.com/emeraldkitty_/status/1439282377021345793
Sampled remix of ATOTKQ:
https://soundcloud.com/the-musical-ghost/deltarune-chapter-2-attack-of-the-killer-queen-tmg-remix

UPGRADE (Remix/Cover)

Yeah, I'm doing this.
Undertale Rearranged is a fun passion project where I attempt to rearrange all 101 tracks of Undertale.

UNDERTALE by Toby Fox.

001 Once Upon A Time - Undertale Rearranged

jazz time!! :D.

original skulltimatum: https://soundcloud.com/zootyplex/skulltimatum

art by me :>.

https://twitter.com/zootyplex/
https://ko-fi.com/zootyplex/

Skulltimatum (B-Side)

Not much to say for this one. It was fun experimenting with the composition.

001 - Once Upon A Time

*The text on the sign is unreadable.

*You figure it's best not to cross the fence.

Art by Webal, music by Solsteam.

Bitter

it is my birthday. and i had nothing to post for halloween or today so have this shitpost 

will have things uploaded by next week though! 
thanks for all the support!!

art by @reasanmagius from last year crazy

birthday 2 the sequel

Cover by Filament Vol. inspired by Joandr861's The Conqueror's Revenge, which can be found here: https://soundcloud.com/madness-determination/conquerors-revenge
Edited by me.

Underfell UST: Terror Of -NEO-

megalovanity flp

The melody is interesting and captivating, as if an incredible story is about to begin!

Amazing Story

1. Beginning of Time

CREDITS:
Full song by: @dashingtoadie-the-sequel
-----

[* this is the once upon a time replacement of my au.]

* long ago, two races ruled over earth: humans and monsters.
* one day, war broke out between the two races.
* after a long battle, the humans were victorious.
* they sealed the monsters underground with a magic spell.
* many years later...

mt. ebott
201x

* legends say that those who climb the mountain never return.

001 - once upon a time.

Song made by: https://soundcloud.com/siegfried-e-s-o

Join our Discord! - discord.gg/JyUy8tq

001 - Once Upon A Time (Siegfried)

UNDERTALE Soundtrack

This is just my second account for KennyVargas20 just in case for some reason. lol

Thumbnail Art by: https://soundcloud.com/luigifan54321
Hello! Welcome to the Soundcloud page of the Official Undertale Community OST. What is this you may ask? Here's how it goes:

A randomly generated number is given to someone from 1-101. Whatever number they get is connected to a song from Undertale, and they make it. If a person, say, gets 38, they would have to make a "Spookwave" track. If they got 14, they would have to make a Heartache track. An entire soundtrack is soon made, and then finally uploaded here for all to listen to. In order to join, all you need to do it join our Discord server: https://discord.gg/JyUy8tq More info is there, so if you're interested in joining the project you must be there to have your song assigned. Enjoy!

001 - Once Upon A Time (Siegfried)

Official Undertale Community OST

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