Nice idea, but this game is clearly too early in development to actually play. The list of bugs and problems people have is massive - with very little response from anybody.
I thought I'd try out the game. Attempted the free tutorial, but as soon as I completed my "road", nothing happened. The "you can always click here to show the tutorial" button does nothing when clicked.
I thought perhaps the tutorial was broken, so I created an account to play in the "real world". After clicking the email validation link in my email, it asked me to login. I entered the same username and password I created just moments earlier, and it told me my credentials were invalid!
I eventually managed to login via github. Thought I'd try the tutorial again, but this time when I finished my road - nothing happened, again. The creeps carried on mining resources for a while, the tutorial button did nothing, and after a while the creeps just sorta, gave up. Stopped moving.
I continued to see logging messages in the console and what-not, so I know the game wasn't frozen... but if this is the kind of experience I can expect, there's no way I'm paying money for it.
Perhaps hold off on advertising/marketing until you've got an application that works past the first few steps of the tutorial.