Mac App Store is the simplest way to find and download apps for your Mac. To download apps from the Mac App Store, you need a Mac with OS X 10.6.6 or later. System Requirements: OS 10.13, 1.8 GHz Intel Core i3 Processor, 8 GB RAM, 1 GB Nvidia 650M / 2 GB AMD Radeon M290 / Intel HD 4000 graphics card or better, 48 GB hard drive space. 86 Metascore DiRT Rally. How to Play Retro Games on Your Modern Mac With OpenEmu. Macs are finally capable gaming machines these days, but thanks to OpenEmu, they're also killer vintage console emulators. Now Mac users can enjoy arcade games on their computer thanks to MAME OS X, a new version of this classic emulator that has been ported for Mac. You already know the features and function of MAME. It allows you to play hundreds of arcade games in ROM format.