This is an interesting and deep game! I think the recursive idea is super interesting, kind of like that factorio mod where you can put factories inside factories. I was confused about my recipes not working until I saw your other comment. Definitely echo nomelu's excellent comment about feedback and clarity, just focusing on answering the question "did what I just tried to do work?" would be very helpful. I also think it would be good to explore how to make the 3x3 grid contribute to the game, right now aside from limiting your spaces the grid based layout doesnt matter. things could take up more than 1 spaceso you had to tetris them together, or you could have bonuses for things being adjacent. Otherwise you could be free from the grid and make something more thematic, like having 9 "plots" of land spread organically around a map. Nice work!