As someone who tried repeatedly to make a game but never finished (or came as far as you have), I can only congratulate you on doing better. I could only see the video on youtube as the site is down, but it looks a lot like a "2D Minecraft". Not that that's a bad thing, but a lot of people will dismiss it because of this. Do you have any plans of expanding the gameplay into a direction different from Minecraft?
A clone of Minecraft in my books is more FortressCraft / UberBlox / Manic_Digger.
Congratulations to the OP though. Overall looks pretty good.