Search for Game Porting Toolkit and download it.If you have an old version Xcode installed, remove it.Search for Command Line Tools for Xcode 15 beta and download the dmg file, and run the contained pkg file.Visit Apple Developer Downloads site, these files are now free to download use for any logged in Apple account.macOS Ventura causes large numbers of issues with steamwebhelper.exe crashing so it isn't recommended, use the macOS Sonoma beta.You can download the pkg installer from Mr Macintosh blog. macOS Sonoma should be used, currently it is in beta.Toolkit install instructions Requirements 8.10 My game looks pixelated and the display resolution is limited.8.8 My game won’t run because it requires Mono.8.2 Steam crashes straight after opening.4 Epic and GOG.com support with the Heroic Games Launcher.1.5 Ensure the toolkit is already on latest version.
