Nope.. no strategy yet.. Now I just bought some Ethertanks last night.. this game stuff is gettting crazy.. I bought 2 tanks and they have already paid me my money back and now I have two free tanks and they are still earning me money.. So it really counts to be first in on these new games as they come out.. no idea which ones will get big.. but if you act fast you can get into most of them for free..