In order for you to play Sunrider: Liberation Day - Captain's Edition on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System: Mac OS X 10.6 or later Processor (CPU): Core 2 Duo or newer Memory (RAM): 1024 MB RAM Graphics Card: Any OpenGL graphics card capable of running Mac OS X 10.6 or later Storage: 3 GB available space
Operating System: Mac OS X 10.6+ Processor (CPU): Any 64 bit processor Memory (RAM): 1 GB RAM Graphics Card: 1280 x 720 Storage: 300 MB available space
Operating System: Mac OS X 10.6+ Processor (CPU): 1GHz Memory (RAM): 256 MB RAM Graphics Card: DirectX or OpenGL compatible card Storage: 1 GB available space