I agree with this being an interesting concept but I was so confused at first. It's not intuitive. I didn't realize I had to pick up the sand. And what are these hearths. It's like there is a backstory that I know nothing about but it's relevant to the game. If you want a game to be successful you need to be able to jump in quickly. Especially with the short attention span nowadays
It doesn't even feel like a game. The answer is given to me for both levels and then I need to pay.
It would be nice to know if you are currently holding something with an indicator because many times I thought I was holding sand it just took the sand away.
The UI also needs work. Many walls of text like stats that might benefit from icons and bullets.