rainydaygaming: The situation with this game is especially frustrating since Turok 2 for macOS and even Linux have been available on Steam for ages now.
I don't think this is going to be changed in the near future: Don't know if Nightdive has lost interest into DRM-free releases for all platforms but even Strife got therefore the native port, even with source-code to be compiled under not supported operating-systems like OpenBSD. Yes, we can wait longer. But speaking for myself: I've lost interest or better the trust in GOG and in Nightdive itself especially. They even don't support open-source at minimum for the time being as the whole renewed engine is closed and proprietary again. Thanks for nothing, Nightdive!