In order for you to play Anomaly: Warzone Earth on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
OS X Snow Leopard 10.6.3, or later.
Processor (CPU):
Intel Pentium 4 2.4GHz or AMD Athlon 64 +2800
Memory (RAM):
2 GB
Graphics Card:
NVIDIA GeForce 7600 / ATI Radeon X1800 or equivalent
Hard Drive:
1 GB