Cool prototype - there's already a nice game loop and it could definitely be expanded on. I have some feedback (even though I assume you're probably aware of these)
- Clicking repeatedly was tiring, should be able to hold!
- I can craft stuff I already have, wasting resources!
- Game should show how many resources a crafted item costs
- Game should show items that I already crafted
- Would love to be able to attack enemies!
- Restart on death!