Another game killed by the Unity plugin problem. So unfortunate! And, Kongregate, although I appreciate the giant helpful banner, your stated fix does not work for me. At least in Firefox64, I'm not even given the option to allow the unity plugin, there's only the option for flash. And yes, I installed the plugin, restarted my browser, computer, etc.
 "IdlePixelGemMiner"){kind=icon}
 "Zombie Tower Defense 4"){kind=icon}
It is an option near the search bar