And also about development - the main thing is not to delay too much, but also not to release a raw product into production. Many games on Steam are unfinished, for which the full amount was paid. Naturally, no one prevents you from posting alpha or beta releases in order to continue refining them by releasing patches, but you yourself may get tired of this.

I also wonder, are you working on the game alone, or do you have some kind of team? Maybe if the game brings in a good income, you can outsource some of it to speed up development?
I mean, it's been almost a year since the alpha version was released, and there haven't been any updates since then.