Video Game Emulation Wiki

Mesen is an open source (GPLv3) NES (Famicom) emulator. It is a high accuracy emulator for Windows.




According to test roms, it is ranked as the most accurate NES emulator, slightly above puNES with a score of 99.6%.[1]

It has cycle-accurate emulation and offers numerous features, including:

  • Support for over 200 mappers
  • FDS (Famicom Disk System) support
  • Video filters (xBRZ, NTSC, etc.)
  • Netplay
  • Debugging tools
  • NSF/NSFe support
  • VS Unisystem support
  • NTSC/PAL support
  • Overclocking
  • Video recording/playback
  • Custom palettes
  • Sound effects (fake stereo, reverb, etc.)