EDITED. Definitely a play to win game after you reach higher levels. Once you are level 10+ coins to make upgrades come VERY slowly. Good game but with some issues...EDIT: IVE BEEN PLAYING AWHILE NOW AND I'M LEVEL 24. SILVER COMES VERY SLOW TO BUY BETTER GUNS OR TO UPGRADE YOUR CURRENT GUNS. BASICALLY FORCES YOU TO PAY FOR BETTER GINS WITH REAL MONEY....GAMES WACK AF NOW