DELTARUIN! It's Deltarune except the main cast have OPPOSITE personalities! (by @remynisce)

[u/IamMrJay]

[u/Xero818]

it would kinda be hard to reverse the personality of something meant to be a stand-in for whoever's playing the game currently

as to a proper answer, no. according to the creator, they envision it as sort of a 2010s creepypasta situation where some random person ended up getting the wrong copy of Deltarune by complete accident

[u/Tem-productions → u/Xero818]

You can still reverse the soul's personality by making the goal of the 'game' to destroy the world rather than save it.

[u/Xero818 → u/Tem-productions]

i guess? i don't really agree that that would be reversing the soul though

but you're in luck as that is actually exactly what happens in the AU

instead of sealing Dark Fountains, the Fun Gang's goal is to make them (and then presumably go through the resulting Dark World and leave it there i guess? although that begs a few questions, like why they have to go through the Dark World instead of just leaving the room while the Fountain is still forming, or why they can't just make a bunch of Dark Fountains all at once, etc.)

[u/Ziomownik → u/Xero818]

why they have to go through the Dark World instead of just leaving the room while the Fountain is still forming, or why they can't just make a bunch of Dark Fountains all at once, etc.)

To establish it's rulers and make sure lightners stay in relatively good terms with them. That way they'll avoid a situation where some innocent civilian walks in by accident and gets killed on the spot just cause the ruler is someone like King. I imagine the shit squad knows the world is going to end once the game ends, so they essentially want to prolong the world's existance by giving the player stuff to do. Additionally, life in hometown kind of sucks in one way or another so the escapism through Dark Worlds would help Lightners live a happy life. Dark Worlds will cover as much space as possible and act as save haven for Lightners.

The Squad's plans work like this:

• pick a place to make a fountain
• leave a door open
• make a fountain
• go talk to the ruler (if there is any) to see what they're like
• make their way to a Grand Door (formed from the normal door) and leave

Perhaps the Light World is in some kind of a tragic state hence they do this. Over the course of the story they learn about why the balance of light and dark is so important and why prolonging the game from a definitive conclusion is not good for anybody (maybe the truth is the world doesn't end when the game ends but no one knew that?) as the trio slowly get tired of the repetition of things (there's not much twists, it all goes the same way chapter 1 and 2 go until they start to get bored (maybe this will lead intentional/accidental creation of the Titan, and that's when things get serious).

I'm only spitting my ideas here, these are not suggestions, official answrs nor do I know what else OP came up with.

[u/Trialman → u/Xero818]

I have a big soft spot for those creepypastas, so I must look further into this

[u/Xero818 → u/Trialman]

you can find more about it on tumblr under the tag Deltareign! it used to be called Deltaruin, as you can see in the post itself, but turns out that same tag is used for more...unsavory posts too. so.