In order for you to play Old World on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
High Sierra 10.13 (64-bit)
Processor (CPU):
Intel® Core™ i5-4570 (quad-core) / AMD® Ryzen™ 3 2200G (quad-core)
Memory (RAM):
8 GB RAM
Graphics Card:
NVIDIA® GeForce® GTX 750 (2 GB)
Storage:
10 GB available space
In order to play Old World on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Mojave 10.14 (64-bit)
Processor (CPU):
Intel® Core™ i5-8600K (hexa-core) / AMD® Ryzen™ 7 1700X (octa-core)
Memory (RAM):
16 GB RAM
Graphics Card:
NVIDIA® GeForce® GTX 1060 (6 GB)
Storage:
10 GB available space