+1 exactly same (iMac high sierra 10,13). desperate. No one answer my request :(

Unfortunately, the Mac OS High Sierra is not supported anymore. We are very sorry for the inconvenience caused. 

11 years gone in one second, lot of money spent lost. No warning before. Just bye bye. Plarium has lost one of his big player. And me also lost many friends, lost all my challenge etc.

And for that... "sorry for the inconvenience". Next time i won t spend money to support you, i ll save it to buy new computer. 

However I am told an upgrade to The 

i

should get you back into the Game 

game wont open after update. very sad cannot get to game play

Why? Do you receive any error messages?

I am having the same issue I am on Win10 and up to date. When I attempt to launch the plarium play application nothing happens at all. I have checked task manager and nothing is showing. I have attempted to uninstall and reinstall as well.