In order for you to play GRIS on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Mac OS X 10.11 (El Capitan) or later
Processor (CPU):
Intel Core i5-4570 (4 * 3200)
Memory (RAM):
8 GB RAM
Graphics Card:
GeForce GT 755M
Storage:
4 GB available space