Alright, how about a spin on the traditional JRPG-style Hero saves the world from destruction from an evil world destroying villain story?
In this version, you are the villain, trying to destroy the world, but here's the twist. You are not evil, in fact, humans have advanced to the point that they are at a crossroads, and if humans are left to live, they will continue down a path that eventually leads to the their extinction, and in the creator's remaking of the world, their souls, as well as everything they have ever accomplished will be gone completely, but with divine intervention, when the world is eventually destroyed and remade, their souls will continue to live on in the new world.
And since the world exists primarily for the creator's entertainment, rather than simply destroying the current set of human souls, or rebuilding with their souls in tact, he has entrusted the task to you, someone of no real worldly importance, to choose whether to let humanity continue down a road that will most likely lead to the destruction of their minds and bodies with only a slim chance of salvation for a few thousand or so more years, or doom the world to an early destruction in which their souls will be recycled into the new world.
So basically, save the people by destroying them via an early demise, or let people live freely, and likely destroy themselves, thus ending their existence entirely and destroying their souls, which have the potential to live for ever provided that their souls are recycled.
It would still work in a somewhat typical JRPG style though, with leveling up, gaining new equipment and like-minded party members in favor in soul preservation through being recycled, and fighting those who oppose the destruction, and wish to live out their lives even if it means being completely erased in body and in spirit.
Of course, the creator will let everyone know that the world is at a crossroads, withholding from them that the world has been destroyed and rebuilt in-numerous times already, and that based in the pattern, statistics indicate that there is less than a 1% chance of a world that continues on will not destroy themselves and lose their souls in the rebuild, because those statistics would influence their way of thinking towards an early demise, and that would be quite boring for the creator for everyone to make that choice. But he will give you, the main character, a strong sense of bias towards preemptively destroying the world without outright revealing the statistics to you either, that way there is much more personal dilemma and controversy, and therefore entertainment for the creator.
And just to be clear, you can also choose to let the world live, and there would be a 1/100 chance of the world surviving, that is completely random, and cannot be influenced by choices you make in any way.