Play onLinux uses Wine. The applications are installed in a folder within
the .PlayonLinux hidden folder called wineprefix where there is a dummy c
drive just as in Wine and the icons should appear in the Wine menu. If you
try to install anything in PlayonLinux and you do not have Wine then it will
install it first thing. It allows multilpe instances of Wine with different
versions, but everything is installed in the .wine dummy c drive previously
mentioned. PlayonLinux has no menu of its own and you do not launch from the
application. It is an installer only. Ironically PlayonLinux places its own
icon in the Games menu, but it has no sub-menus. At least that is the way it
is on my system.