RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Mesen - Mesen is a NES/Famicom emulator and NSF player.
Mednafen - Mednafen is a portable, utilizing OpenGL and SDL, argument(command-line)-driven multi-system...
Snes9x - Snes9x is a portable, Super Nintendo Entertainment System (SNES) emulator.
OpenEmu - Console and Arcade video game emulator for macOS.
BSNES - bsnes is a Super Nintendo (SNES) emulator focused on performance, features, and ease of use.