OpenEmu utilizes a modular architecture that supports game engine plug-ins (i.e.: loads various game engines as plugins), which means it can support a large number of different console emulation engines, and simulate the hardware of different TV/handheld game consoles. It enables us to play GB, GBA, NDS, PSP, NES, SNES, PlayStation, SEGA and other classic TV/handheld console games on Mac OS now.
OpenEmu has a simple, beautiful and intuitive UI, supports drag & drop operation, game libraries, screenshot feature, real-time game rewinding function, allows user to easily add, browse, organize supported game ROM files, and can connect to compatible gamepads.
And its purpose is to bring macOS game emulation into the realm of first class citizenship. Its appearance means that the ‘ It just works‘ concept has extended to the video game simulation field on Mac operating system for the first time ever. OpenEmu (formerly called OpenNestopia) is a free and open-source multiple systems universal game console emulator only for Mac OS.