This is READY TO USE project, android IAP in app purchases allready in Only things you have to do to make it work is: use your own APP ID - from GOOGLE PLAY CONSOLE use your own - GOOGLE PLAY PUBLIC KEY - from GOOGLE PLAY CONSOLE - automatic game saving - offline gold farming - leaderboards YOU CAN CHECK ON : https://play.google.com/store/apps/details?id=com.aiderongames.Monster_Cave
End User Licence Agreement (EULA).
