Hi I think that stone is a bit useless. You end up with a lot of extra stone after mining for metal ore. Perhaps stone could be used to build. Another thing that would be cool is a save button of some sort in the menu. That way you could save your builds manually. Also a friending system. More people in worlds. (10-20). Farming system of some sort. Maybe you could use your blueprint to plant carrot or potato patches. Also metal fragment light armor and heavy metal armor. Heavy armor is slow yet stronger, and light armor is weaker, yet more mobile. Thanks.
Best wishes from Chief Elop and the Mountain Tribal Confederation. (MTC).