In order for you to play Legend of Grimrock 2 on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Mac OS X 10.7.5 or later
Processor (CPU):
1.4 GHz dual-core Intel Core i5 processor
Memory (RAM):
2 GB RAM
Graphics Card:
OpenGL 3.2 capable graphics card, Intel HD Graphics 5000 minimum
Storage:
2 GB available space
In order to play Legend of Grimrock 2 on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Mac OS X 10.8.5 or later
Processor (CPU):
2.5 GHz dual-core Intel Core i5 processor
Memory (RAM):
4 GB RAM
Graphics Card:
OpenGL 3.2 capable graphics card, Geforce GT 650M or better recommended
Storage:
2 GB available space