When you have $10, click on the picture of the miner to buy it. The miner will then go back and forth between your castle and the supply pile and give you money. When you have $35, you can do the same thing with the soldier. The soldier will then attack the enemy castle, and take away its life. When you have $50, click on the boss picture, and it'll do the same thing as the soldier, except it'll do more damage. The last thing is you can change the speed dial to affect how fast the game goes.
If you see any bugs in my game please tell me. Also please no hate comments.