#undertale au idea

[julia-jck]

I may or may not have redesigned/reimagined an old Sans OC of mine... Instead of being a Sans going around AU to AU and collecting stuff from them while having amnesia, he is now a Sans going from AU to AU, collecting stuff and information about anything and everything while having amnesia, becoming a protector of knowledge and wisdom and also being a messenger of things to come. Good stuff? Bad stuff? Who knows! He's not sure himself. Some believing he brings good things and "embraces" his presence while others thinks he brings bad things and avoid him.

He has quite bad memory, having a hard time remembering people, but knows a lot of useless trivia on top of his head. "Did you know that Fell sleeps with a stuffed kitten named Princess?!.... Oh, btw; what was your name again?" "....... Fell..." He's a lot like Ink, if I remember correctly, in that regard. He's also a bit of a trickster.

The bag he has on his leg is like a bag of holding. I don't know yet if I want it to be like a small portal to his AU, or if I want it to be its own mini void where he can store stuff before bringing it to his AU.

He can summon temporary wings to double jump and glide for short periods of time (can't fly with them). He prefers it over teleportation. His magic levels are also quite high, but can't really use it with much more than opening portals and his attacks, instead of bones, are feathers he summons (nearly the exact same as Hawks from MHA)

That's all the info I can remember/come up with for now. Hope you like the redesign!

[silverstormsxx]

Undertale au/fanfic idea - "grilled fish"

Au where sans, who was watching frisk fight undyne the undying at a distance, accidentally ends up getting a little too close just as frisk finally beats her and she starts melting, ending up with them fusing together into an amalgamate.

(Idk how the hell frisk is gonna get out of this one lmao.

They could be called '🐟🐟🐟 🦴 🦴 🦴' (fishbones).

Feel free to use/expand on this idea if you'd like!)

[kelxya]

ok so this Undertale AU idea has been eating at my brain and I need to store it somewhere

Not sure if this has been done already but:

A group of outcodes/multiverse-aware incodes whose day job is being the multiverses' glorified janitors. They travel between AUs taking care of the glitches left behind by botched resets, outcode interference, or messy coding by the Creator.

I'm not talking the major, world-ending kind of glitches. Those are left up to Ink and the more powerful outcodes. I'm talking the stupid little glitches that most couldn't be bothered to fix because they're just silly.

Like, a doorknob feeling like jello instead of solid metal.

Or a single square meter in Snowdin where the gravity is 50% less than it should be.

On a really exciting day, they get to rescue someone who no-clipped through the floor.

They probably have some cool acronym for a name but Sans (nicknamed Jans, for Janitor!) keeps calling them the Multiverse's Clean-Up Crew and the name's stuck. The staff aren't from any particular AU, and Clean-Up Crew is always hiring because oh my stars is the multiverse broken.

Aesthetic is somewhere between cyberpunk and a janitor's outfit. Maybe I'll draw some stuff for Jans and his coworkers when I get a moment!

[bamthefox]

weird idea for an au

undertale baked with love

in a more mundane timeline chara works for muffet and papyrus at their newly opened restaurant

(i just felt like drawing my favorite undertale characters with out mew mew i didn't feel like drawing her)

[themidnightsunset]

i just got slapped in the face with an UT AU idea like its making me wish i was still hyperfixated on undertale

ok so u know that headcanon where like gaster got yeeted into the core and thats why hes just a guy

ok so like

what if sans was yeeted in instead and you meet gaster and papyrus in snowdin instead

and they have no idea who tf sans is

like i feel like that would be cool

[fandomsfordays21]

Undertale AU/AM idea I have:

So, this idea has been bouncing around in my brain like a ping-pong ball for the past year or so and I've decided to put it out there for you guys. I'm going to post each of the character ideas in their own posts and get around to drawing them at some point once I get through artblock.

So, this idea started as a Rainbow Factory AU where Ink got his vials/paints from other monsters by extracting them from their souls, but it evolved into something much more advanced and complicated that I like to call the SOUL Experiment AU/SEA.

Long story short, Error is a sort of mad scientist who has a fixation on Souls, both human and monster, and experiments with them. (This motivation is caused and motivated by Geno, but that story is for another post.)

These experiments range from extracting different colors from different Monsters and observing the effects they have on Ink, doing studies on the Dreamtale twins (Who work for him in this au while also being studied.) and their empath abilities as well as the corruption Nightmare has, a study on the possibilities of distortion within a Monster Soul (Killer), and the most extreme and groundbreaking of them being the combination of two separate Souls together to create one entity. (These experiments include, the combination of Frisk and Chara, the combination of Dust and Dusttale!Papyrus (Who we call Ash here), and of course, the combination of Cross and X!Chara (Who is simply called X).

Like I said, specifics about the characters will be in their own posts as well as the specifics of my Magic/Soul system, but if you have questions before those come out my ask box is open.

There's a lot of cool ideas I have for this AU and I wanna get around to posting art about it or maybe even writing a fanfic about it.

I hope this gets some traction because I would love to share my ideas with you guys! Please let me know if this idea seems interesting to you so I know if I should keep working on it!

[fae-sodapop]

I had this idea for an Undertale AU for a bit now--

The idea goes; one of the Dreemurr kids survives the Buttercup Plan. (This is assuming lots of things like determination being strong enough to keep asriel alive, or determination being strong enough to keep chara alive while asriel dusts)

For Chara;

Their parents definitely got to have some complex feelings about that, right? Sure, not all humans are evil & they didn't want to fight humans in the war but they still massacred monsters. And of course you would never blame your own child for the death of another, at least not consciously. But it probably doesn't feel good that- technically speaking, a human child (which might look like Poncho Human, so there's some more complex feelings just for you Asgore, your welcome.) got your only son killed. And if Asgore does go through w/ declaring war on humanity with the only exception being the royal human child, congrats Chara you unlocked a whole new world of self guilt :). Hell maybe even they themself would be the one to declare war on humanity. Very fun, lots of angst, lots of trauma, lots of possibilities for the timeline.

For Asriel;

So he's probably way devastated, I've got to assume lots of stuff w/ him not feeling strong enough & like he failed his best friend & sibling etc etc. I don't think his parents would hold the same complex emotions for him especially since he wasn't the one who initiated the plan. I think he'd spend the rest of his child/teenage hood trying to prove that he was tough "not a crybaby" & that he was strong enough. In the event that asgore were to declare war I can't see Asriel staying traditionally. I feel like you would probably leave w/ Tori. But hey, maybe he has guilt hurt himself so hard into thinking that this was Chara's Last wish, maybe humanity was that bad, maybe they do deserve what's coming. Maybe he takes joy in it? Maybe he doesn't but claims it to be the right thing to do. Maybe it's a bit of a flowey situation where eradication is the only option. (Going to be real fun when Frisk falls & they have the same tendencies or physical appearance as Chara).

[justthemoonz]

I've seen a recent trend of AU-ifying other UT characters on Twitter and wanted to share my idea of an Aftertale Flowey

[it-came-from-mount-ebott]

Horrorshift take where Asriel ends up convincing himself he’s some sort of dark lord, and Chara is his “second in command”.

[chestersbraincell]

Before anything I’m coining this idea so please credit me 🥺

Okay so you know how the narrator in slay the princess is, well, encouraging you to slay the princess?

And how the old common fanon interpretation of Chara was them encouraging/possesing(which, might I add narrator from stp ALSO does in some instances) the player/frisk to kill all the monsters?

The idea’s not quite done brewing in my little head yet but it’s definitely a cool idea for an Undertale AU

Obviously the idea of it being a love story would have to be tweaked but yeah

Think I would name it Slay the Monsters(under the mountain), and I think frisk would look a little more like a knight. Maybe taking Inspo from the unused “hero” character design?

OH MY GOD. AND THE OTHER HUMAN SOULS COULD BE THE VOICES.

would probably tweak their traits though.

Kindness would probably be useful for going against the Narrator’s(obvs Chara’s) wishes.

Justice mayybbeee kinda like Opportunist? In the way that they switch sides I mean. Like they would originally be on Chara’s side but as they see the monsters as their own individual people they would think It’s more “just” to spare them and talk things out.

Integrity I’m not sure about, I think they would mostly stay on our/frisk’s side with staying true to themselves and their initial stance. Though in that way perhaps their motivations would be set via what your first “path” was, and staying true to that.

Patience would be similar to the Cheated, in how you straight up just walk away. They’d probably argue for simply waiting fights out, or at first simply waiting for rescue on the flower bed.

Bravery would be VERY similar to the voice of the Stubborn, abso-fucking-lutely! Like in the Adversary routes, definitely on Chara’s side.

Perseverance would be similar to Integrity that they would only really play a bigger role later down a route, criticising alternating between „paths”. Ie killing the first few monsters, then being pacifist for a while and then killing again for no reason. They would also be the one to encourage us/frisk to keep going in death. Overall neutral on whether we kill or spare though.

[julia-jck]

I came up with an idea and had to draw it...

I thought about how Sci always end up being a doctor in stories and fanfics, so I came up with a hospital AU where all characters are based on creatures known for healing and regeneration. So Sans is a doctor and based on asnake cause of the staff the Greek god of healing, Asklepios, owns and cause in ancient Greece the preasts would use sacred serpents for their healing (info based on the first info I saw on google...). And Papyrus is a nurse and based on a Hydra, a creature which grows two more heads when one get cut off, lol, and I think you need to cut of the head to kill it??? Can't remember.

Of course the others would also be creatures like this. I were thinking that Undyne would be based on an axolotl and Asgore and Toriel would be based on phoenixes.

[silverstormsxx]

deltarune/undertale au idea - "second chance in another world"

au where one of the fallen children (perhaps clover, perhaps someone else) replace the Player in Deltarune as the one who possesses Kris.

[bingobongohatestaffy]

I need to ramble about this idea because I think it’s actually kinda a fire au idea-

Alr so.

Y’all remember that “Human, I remember your genocides” meme?

What if there was a au about like.

Frisk redoing the pacifist route over and over and over again, and Sans just. Remembering the human taking them all to the surface, they all have their silly lil happy ending, and then Frisk pulls a “Hah get baited” and resets like over and over again 😭

People talk about how Sans would be like, mega traumatized over seeing his friends die over and over again, but imagine the HEADFUCKERY sans would go through after finding out the human is just taking away their future for shits and giggles, then comes back all nice like “Yeah imma befriend everyone 😼” like they didn’t just reset everyone’s happy ending 💀

Idk I think this is a cool idea, I might make some concept drawings for a au like that because I feel like this is like. Untapped potential 🤯 imagine sans just being fucking hopeless because he legit can’t fight the human after pacifist runs, so he just has to deal with a constant loop OVER AND OVER🤡 (L on his part)

[bamthefox]

Random au idea hear me out

Undertale but mini boss/minor characters swap with the main characters based on area

Like mad mew mew and papyrus

With doggo being sans with the two having a old

And very caring monitor and a very eager and hotheaded mentee type of dynamic 

With the other K-9 unit also being sans but in a less major way with them helping with traps n such

Catty and bratty being alphys and yatta yatta

[anomalous-writer]

AU concept that i think would be really cool: Herotale

okay so

Herotale is basically a post-pacifist where Frisk is seen as a kid with "superpowers" by some people, since some people believe it's the only way the kid would've actually survived (those people mainly being monsters, excited kids, and conspiracy theorists). because of this, Frisk eventually decides to become a superhero, and pitches the idea to Papyrus, who agrees to be their sidekick. they start by fighting off petty crimes like pickpocketing and wannabe criminals, but soon realize there's a lot more going on than just that. a protective military group made specifically to fight against monsters has just made their way into Ebott Village, and has started killing off the monsters one by one. soon, Sans has to join in as well, and together, they become a superhero trio fighting for monsterkind's safety.

how do we feel about this, guys?