Alternative apps to OpenEmu:
OpenEmu Alternatives
For the first time, the 'It just works' philosophy now extends to open source video game emulation on the Mac.
OpenEmu is an open source project whose purpose is to bring macOS game emulation into the realm of first class citizenship. The project leverages modern macOS technologies, such as Cocoa, Core Animation with Quartz Composer, and other third-party libraries. One third-party library example is Sparkle, which is used for auto-updating. OpenEmu uses a modular architecture, allowing for game-engine plugins, allowing OpenEmu to support a host of different emulation engines and back ends while retaining the familiar macOS native front end. Read more.