I'd pay money to play this. Came back more than once to enjoy my comrades collecting materials for me.
That said, one tiny improvment I think just navigating the menus could be improved. I can't interact with multiple menus at once (if I open a comrades stats with the comrade list open I have to close the comrade list) and the money I have is not shown in the menus for upgrades might be just a nice QOL feature.
Otherwise, great game!