In order for you to play Farming Simulator 2013 Titanium Edition on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
Mac OS X 10.6.1/10.7.1/10.8.1
Processor (CPU):
AMD/INTEL 2.0 GHZ
Memory (RAM):
1024 MB RAM
Graphics Card:
256 MB OF VIDEO MEMORY ATI RADEON X1600/NVIDIA GEFORCE 7600/INTEL HD 2000 OR HIGHER
Hard Drive:
2 GB HD space
Additional:
INTERNET CONNECTION REQUIRED FOR THE GAME ACTIVATION AND THE ONLINE GAME