This is the problem: i do not want people can cheat the game so i need to identify and recognize each single visitor in unique way. Normal cookies are not a solution since they can be easily deleted.
What could i to recognize an user in a stealth way so he cannot easily delete the cookies and play multiple times to my game?
I cannot register the ip in the database because many ISP in my country uses the same ip for multiple users so i would block many users if i ban an ip.
Is there a way to install a stealth cookie not easy to be deleted or something like that?
Maybe flash cookies or java cookies??