In order for you to play Decay: The Mare on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Mac OS X Version 10.8 or higher
Processor (CPU):
MacBook, MacBook Air, MacBook Pro, Mac Mini, iMac or Mac Pro release year 2009 or later
Memory (RAM):
4 GB RAM
Graphics Card:
NVIDIA GeForce 9400M, Radeon HD 3450
Storage:
2100 GB available space
Sound Card:
16Bit