I'm an aspiring indie game dev and plan to upload my first games here on Itch.io

While I plan to upload games once they are fully playable and polished, I wonder if it's acceptable to upload games-in-development so that I can accept feedback as I develop them.

Yee, unfinished games are welcome and infact seems itch.io is a great place to upload prototypes and get feedback. Pry a good idea to mark is as "Prototype" or "In-Development" in the releases status drop option tho, :3