I'm playing without network connection, Wifi is turned off. So I guess game is not server-side.I tried also Game Killer and Game Hacker and value changes always right back after I change it, exit from GG or some else memory editor and go right back. Tried just put zero to place where money should be and after resuming game the number went t ozero and then got incremented back to old value in game. Seems that there is some protection method in place, maybe they are saving info in some other format to some other place and check it constantly. But I guess this may be the topic for Un-Cheatable forum.