Its not a free game man. If U win a battle, U'll get 3-5K credit & to win a game U've to buy boost of 40K otherwise U'll loose every game even if U've all unit and building maxed. 2ndly to upgrade Ur units U've to invest money. The credit U earn by winning & viewing adds is not enough to upgrade Ur unit n building more than 10%. So if you want to win U've to invest real money. Choice is Urs. Previously to start a war U had to wait 15 sec but now U've to wait 2-5 mint. A lot have left the game.