EmuNations

Wine (Wine Is Not an Emulator) is a compatibility-layer capable of running Windows applications on several POSIX-compliant systems such as Linux, macOS & BSD. Instead of simulating internal Windows logic like a virtual machine, Wine translates Windows API-calls into POSIX-calls on-the-fly...

SuperModel emulates Sega's Model 3 arcade platform which uses OpenGL and SDL library to those arcade games. It's still considered to be in "alpha" stage of development with game compatibility remaining average, but it's still being actively developed...

Playnite is an open source video game library manager which supports 3rd party libraries like Steam, GOG, Origin, Battle.net and Uplay. While providing one unified interface for your games, it includes game emulation support, fullscreen mode, themes and much more.