I like the idea a lot! There are nice touches like how the env changes the further you go from the oasis, and the little compas that shows you where it is . There is however stuff I don't know how to do, where do I plant the tomato seeds and how do I look into my full inventory outside of the shop?
EDIT: Alright, so for those who are wondering: the controls are on the game's page, you need an upgrade to make soil appear, but that's okay because you can keep mining and cutting wood without SP. ^^