Mesen S

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Mesen-S logo.png
Developer(s) Sour(formerly); just like Mesen, Nova Squirrel also has a fork for maintaining the code base and accept pull requests
Latest version 0.4.0 [+]
Active No
Platform(s) Windows
Emulates SNES
Accuracy Cycle-Accurate
Support ($) Patreon
Programmed in C++, C#, C
License GNU GPLv3
Source code GitHub

Mesen-S is a free and open-source (GPLv3) SNES emulator for Windows and Linux. It is a hard fork of the cycle-accurate NES/Famicom emulator Mesen, developed by the same author using .NET. In 2023, it is confirmed discontinued and got merged into Mesen2 itself.


Windows Official releases


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

  • Support for specific onboard chips.
  • NTSC/PAL support
  • NSF/NSFe support
  • Video recording/playback
  • Video filters (xBRZ, NTSC, etc.)
  • Netplay
  • Debugging tools
  • Overclocking
  • Custom palettes
  • Sound effects (fake stereo, reverb, etc.)
  • Rewind

List of forks[edit]

Name Platform(s) Latest Version libretro Active Recommended
PC / x86
Mesen SX Windows Linux 2022-3-10


Mesen SX

This fork is meant to gather development efforts from different forks. Not under active development but pull requests are welcome. This fork is deprecated as of Mesen2's release