Mac OS? Yeah, it runs Quake 2.
Ported over by Logicware, this version of Quake 2 required Mac OS 9, and this time it doesn’t really have any charming Macintosh-specific eccentricities. It’s more or less identical to the Windows version. Was a bit of work to get playing nice with SheepShaver though, so I’m still posting a screenshot!
An official OSX port was released in 1999 by OmniGroup as a free download for owners of the PC version.