Click away on the coin on the bottom right corner. Buy hardware as you get enough money to spend. Shares give you an amount of money after the block is solved. (When the block done reaches block total) Yes, you do have to click it 100 times in the beginning, but after that its pretty forward.
So this game is entirely based of scrypt mining, in which the currency used in this game is 'Dogecoin'. I made this game so hopefully people understand how dogecoin mining works. v0.2 changelog: Fixed unit math glitches, added XPS 15