Oh well. I could just modify each copy of the game I give out. I'll make the code extremely long, something like:
899761TFFG6DS3VBK-PXZ1255KH-DWQ298LL9-QWERTY23-JJFORD256
There we go. Now I just need one billion unique codes.... :)
899761TFFG6DS3VBK-PXZ1255KH-DWQ298LL9-QWERTY23-JJFORD256
There we go. Now I just need one billion unique codes.... :)