This is a GUI app that guides you in installing and then running Half-Life 2 natively on modern Mac OS versions. I have a portable build for Mac OS 12+ available for download. You just need to provide your own Half-Life 2 game files to the easy to use app. Valve never released Half-Life 2 for Mac OS 10.15 and newer when Apple dropped 32-bit support so this fills in that gap.
Github: https://github.com/alex-free/source-engine-mac-app
Homepage: https://alex-free.github.io/source-engine-mac-app
Github: https://github.com/alex-free/source-engine-mac-app
Homepage: https://alex-free.github.io/source-engine-mac-app
