In order for you to play Costume Quest 2 on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Snow Leopard 10.6.8, or later.
Processor (CPU):
Intel Core Duo Processor
Memory (RAM):
4 GB RAM
Graphics Card:
ATI HD 2600 / NVIDIA 8800GT / Intel HD3000 or better card with at least 256 MB VRAM
Storage:
4 GB available space
In order to play Costume Quest 2 on macOS with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Snow Leopard 10.6.8, or later.
Processor (CPU):
Intel Core i Series Processor
Memory (RAM):
4 GB RAM
Graphics Card:
ATI HD 4670 / Nvidia 285 or better with at least 512 MB VRAM
Storage:
4 GB available space