@Tookey76
For Firefox and Chrome I can usually turn flash on by clicking the box that the game would appear in. If this doesn't work you'll be looking for a little grey lego-brick icon to activate Flash somewhere around the address search bar by the padlock. If there isn't an option to turn Flash on in the game window, and if the brick icon is missing, you might try in 'settings' or 'options' in your browser.
 "Hex Empire"){kind=icon}