Mac Source Ports has a macOS version of this, including Apple Silicon support. Played it recently and it works very well despite a couple of annoyances.
Mac Source Ports is fantastic overall, there’s a ton of other games available too.
Mac Source Ports is fantastic overall, there’s a ton of other games available too.
edit: Here it is. This looks like a good place to work from: https://github.com/MacSourcePorts/xash3d-fwgs
Looks like the main annoyance is no resolution scaling; the game always renders at the size of the window, which at high pixel densities is a problem for the text rendering (it's tiny). Should be solvable for someone motivated though.
We have upstream support for macOS now, since there is at least one person ready to work on it.
Well, thankfully, it doesn't require too much work, except some Apple specifics. If someone could set up a CI build, that would be awesome.
If you have problems, better report them at our issue tracker on GitHub. Even if it was unsupported configuration, there might be somebody who knows how to fix this exact issue.