this is a very good game and i have two mines one 10 and the + other lvl 4 lvl.
i do upgrade and most importantly my first mine already paid salary: approx. 4450 workers

I wating on that project.

@gege1976: registration confirmation does not work, fixing it!

@edit: as you sometimes do not come for the first time, the correct link is possible until "pain" and you'll get the correct link