about 4 years ago - AndrewT - Direct link
Note that this game is not supported on Intel video Macs , which covers most Mac laptops I'm afraid.

I doubt that's the issue with the iMacs mentioned above, but if you could all confirm your video systems and amount of RAM, thanks!  
over 2 years ago - AndrewT - Direct link
valentin56610 said: Hello

I am trying to play the game on my 16" 2021 M1 Pro MBP and .. well I barely get more than 20 FPS, regardless of the graphical settings I choose.

Please, remove the MacOS compatibility from the Steam page. This game is NOT compatible with MacOS at all.

HOI4 runs great. EU4 runs great.
CK3 is pure garbage.
Yours is a completely unrelated issue to the one in this thread from 2020, which was fixed long ago. This is why we ask people to not reopen old threads.

Your issue is caused by being on an M1 Mac, which is indeed not supported hardware for this game. The game runs perfectly fine on Intel CPU Macs, and is absolutely compatible with MacOS on supported hardware. We won't be changing the compatibility page on Steam.