could you add harder versions where you need to do more things like farm yourself (i mean like plant and water with a water can where you fill water in the water on the side
I might add difficulty modes eventually (as some people want the game harder, and some want it easier), but I think the current balance is pretty good overall. And I might add more to farming - as right now you just have to wait (and maybe apply fertilizer). Perhaps a watering can would make crops grow faster, so players who care will spend time on the farm, those who don't will mine and when they return have some free food even though it took longer to grow.