If you want to play Half-Life today I highly recommend Xash3D FWGS (yes its a super awkward name)

https://github.com/FWGS/xash3d-fwgs

Easy to use Mac build here: https://www.macsourceports.com/game/halflife

IMHO, if you want to play Half-Life today, go get Black Mesa, an absolutely fantastic fan-made remake with Valve's blessing:

https://store.steampowered.com/app/362890/Black_Mesa/

Or, can still be purchased on Steam for $0.99, during sales. Windows only though.

Eh, I don’t really think that this is an “or” situation. I think that this is an “and” situation. The last time that I set up Xash3D FWGS, I had to copy files from the version of Half-Life that I own on Steam into a different folder so that those files could be loaded by Xash 3D FWGS. I haven’t tried Xash 3D FWGS in a while, but it looks like you still have to do that [1]. Also, are you sure that the Steam version of Half-Life is Windows only?

[1]: <https://github.com/FWGS/xash3d-fwgs/blob/f0342763547d9bcf486...>

What's the point of using this xash thing then?

For whatever reason, Valve doesn't want to open source the engine so some people have taken it upon themselves to build a reverse-engineered engine (which now runs on Android, in the browser etc).

It’s open source and runs on all kinds of platforms. Original HL1 runs on old Windows and IIRC DOS. Nowhere else

Valve updates HL1 every few years so it runs on contemporary platforms. DOS was ancient history by the time HL came out, you might be getting it mixed up with Quake1

> Also, are you sure that the Steam version of Half-Life is Windows only?

You're right! It looks like Linux has a native build too. Apparently the Windows version, through Proton, runs better though (not that it matters).

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the windows version is playable on macos through wine. Even modern version, I got it running on a m2 mac mini on Macos 15 sequoia

EDIT: this was for HL1 I’m not sure about HL2

Its ported to Linux just like cs 1.6. Not sure how good Mac build is though.

Steam version: This product is not compatible with macOS 10.15 Catalina or above.

Yeah Apple's latest round of breaking changes hasn't been addressed (and seemingly won't be).

The Linux and Mac ports happened in 2013 or so (presumably getting one working went a lot of the way to getting the other working, though there is some speculation that Apple poured in some money to help make it happen).