I installed and played this game to see if the reviews I read were correct. They are true. If you want to make enough money to upgrade your worker's and equipment, you have watch ad after ad. More ad watching than playing the game. Sorry but my time is more important than watching ad's all day. This game would be fun and it does have a great concept if you weren't spending some much time with ad's. I uninstalled this game and will revisit it, to see if they fix this problem. Hopefully they do!!