Earlier this month, Apple ended support for 32-bit Mac applications with the launch of macOS Catalina 10.15. This means that if you upgrade your macOS, you will be unable to use any 32-bit applications that you may have on your computer.
Today, we released a 64-bit update for Castle Crashers that will allow Mac users to continue playing the game on their newly upgraded operating systems. This is completely free to download; just update your game through the Steam client and you should be good to go.
If you run into any issues with the game after downloading the update, please be sure to submit a ticket to [support.thebehemoth.com](support.thebehemoth.com) so we can look into it and provide assistance.
To learn more about the recent macOS update and how it may impact other applications, please see Steam’s FAQ here.
Happy castle crashing!