Snes9x for macOS is the result of well over three years worth of part-time hacking, coding, recoding, debugging, divorce, etc. It basically allows you to play most games designed for the SNES and Super Famicom Nintendo game systems on your Mac or Workstation which includes some real gems that were only ever released in Japan. Snes9x for Mac is a portable, freeware Super Nintendo Entertainment System (SNES) emulator.