My System Specs:

• OS: Mac OS X 10.8.2 Mountain Lion
• CPU: 2.6 GHz Intel Core i7
• RAM: 16 GB
• Video: nVidia Geforce 650M / Intel HD 4000
• Disk Space: 10.25 GB

Known Issues: -lighting errors -attempting to restart a level after dying crashes the game -dat lenseflair -long boot time (be patient)

important:Every time you launch the game a console will appear and type in "host 000" and you can't change the game resolution or graphic quality