Click Next on the first screen of the ‘installation wizard’.Make sure there’s a check in the box next to OpenEmu and then close the Security & Privacy panel.Click the Open System Preferences button. If you’re using the latest version of macOS, you’ll need to grant the App keystroke permission.
Instead of double-clicking the App to open it, locate OpenEmu in your Applications list, hold down the Control key on your keyboard and then click OpenEmu. zip file and drag the App to your Applications folder to install it. Here’s how you can play MAME ROMs on your Mac –
I thought I’d see if you could play them in macOS, and sure enough it’s actually quite straight forward. Today I stumbled across an old CD I have full of MAME ROMs. This guide will take you step by step through the process of setting up your Mac so that you can play MAME ROMs (games) on it.