In order for you to play Grand Ages: Medieval on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
10.11
Processor (CPU):
Intel Quad-Core @ 3.1 GHz
Memory (RAM):
4 GB RAM
Graphics Card:
NVIDIA GeForce GT 440/GT 650M, AMD Radeon HD 7750/6970M 512 MB VRAM, Shader Model 5
Storage:
5 GB available space