In order for you to play SKYHILL on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Lion (10.7)
Processor (CPU):
Intel Dual Core 2.2GHz
Memory (RAM):
4 GB RAM
Graphics Card:
ATI Radeon HD 4670, 300er Nvidia, Intel HD 5200+
Storage:
1300 MB available space
Sound Card:
16Bit