OptiShot 2 Golf Simulator The World's #1 Golf Simulator now for Mac or PC Use your own clubs to hit real or foam golf balls Play and practice on world-famous courses Windows System Requirements: Windows Vista, 7, 8 or 10, Graphics Card: 256MB available Adapter RAM with OpenGL 2.0 support and the latest Video Drivers, 3GB HDD Storage, 4GB RAM, USB 2.0 port Mac System Requirements: Mac OS X 10.8, Intel Core 2 Duo, NVIDIA GeForce 8600M GT or ATI Radeon HD 2600 or Intel Iris Pro or better, OpenGL 2.0 Support, 3GB HDD Storage, 4GB RAM, USB 2.0 Port