Hey there i'm actually interested in working on a harvest moon-like game, i have 4 years of experience with godot engine and i specialize on Top Down view gameplay
I wouldn't mind making a single player game or a local coop game but i would advise you to not to make it multiplayer since the framework is kinda complicated but if it's needed then it's possible
It's not that I wouldn't enjoy creating a Harvest Moon style game, it's that Stardew has it well covered, and I believe you should always work on something you intend to release or that fills a niche. I don't think creating something to throw away as practice is ever the correct path.
With that said, I believe there's always space for new iterations of genres, and if that's what you want to do then I would do it!
