In order for you to play Streets of Rogue on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Mac OS X 10.9+
Processor (CPU):
Intel Dual-Core
Memory (RAM):
4 GB RAM
Graphics Card:
DX9 (shader model 3.0) or DX11 with feature level 9.3 capabilities
Storage:
340 MB available space