This wouldn't happen for quite some time, but I wanted to start probing others now to see if there would be any interest in this. Basically, my idea is to create a setting similar to Stardew Valley, and then invite other writers and artists to help create characters to live and work in the town and it's surrounding area. We could start a Discord server to hash out all the details, and then depending on what everyone wants, the community-created characters could either appear in the flagship series I'd be writing, or a companion series written by someone else.
One of the Discord channels could be dedicated purely to tracking the day, season, and year within the meta series to ensure all the narrative threads are in sync. There would also be the option for prequel series set in the past of the current valley as well, so long as we work together to avoid plotholes.
As for the overall plot, it would be mostly slice of life/romance at first, with some fantasy action for those characters who go hunting in the woods or descend into the monster-infested mines. One of the characters I would create would by an old wizard who runs an alchemy shop in town and provides magic tutoring services. Eventually, he would be a leading voice when a group of miners accidentally uncover a secret chamber underground where a dark relic has been stored for centuries and forgotten about. This magical device awakens an evil power that causes the monsters in the mines to go berserk and flood to the surface and out into the valley. The dark aura then spreads to all the animals in the forest and mountains as well as some of the townspeople who have enough anger in their hearts.
I think this might be a cool fun adventure for a bunch of us to have together, I'd love to hear your thoughts:D.