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Developer(s) BizHawk Team
Latest version 2.9.1 [+]
Active Yes
Platform(s) Windows
Emulates Multiple
Programmed in C#
Source code GitHub

BizHawk is an open-source multi-system emulator, as well as a libretro frontend designed predominantly around the production of Tool Assisted Speedruns (TAS).

It is written in C# and requires .NET Framework 4.0 (in 1.X releases) or .NET Framework 4.6.1 (in 2.X releases) to run. BizHawk focuses on core accuracy and power user tools while still being an easy-to-use emulator for casual gaming.


Windows Linux Official releases

Windows Linux Dev Builds

Windows Dev Builds
Compiled by appveyor


For tool-assisted speedruns, BizHawk is king. Since 1.11.4, it has support for libretro cores, making it a good alternative for RetroArch, and adds TAS support for all compatible cores. Also supports RetroAchievements.

LUA scripting support has pretty unique utilities. For example Bizhawk Shuffler 2 is a popular script that randomly shuffle between games played in Bizhawk, with plugins to enhance the experience.

Supported systems

Original and ported

System Based on code from:
Apple Virtu
Arcade MAME
Atari 2600 Original
Atari 7800 Original
Atari Jaguar Virtual Jaguar
Atari Lynx Mednafen's Handy core
Bandai WonderSwan/Color Mednafen's Cygne core
ColecoVision Original
Commodore 64 Original
GCE Vectrex Original
Magnavox Odyssey² Original
Mattel Intellivision Original
MSX Original
NEC PC Engine (TurboGrafx-16) Original (PCEHawk), Mednafen (TurboNyma, HyperNyma)
NEC PC-FX Mednafen
Nintendo 64 Mupen64Plus (v2.0, for N64), ares (for 64DD)
Nintendo DS/DSi melonDS
Nintendo Entertainment System/Famicom Original (PPU based on FCEUX), QuickNES.
Nintendo Game Boy Advance mGBA
Nintendo Virtual Boy Mednafen
Sega Genesis/Mega Drive, Sega/Mega CD Genesis Plus GX
Sega 32X PicoDrive
Sega Saturn Yabause (1.X), Mednafen (2.X)
Sega SG-1000, Master System, Game Gear Original
Sinclair ZX Spectrum Original
Sony PlayStation Mednafen (Octoshock, Nymashock)
SNK Neo Geo Pocket/Color Mednafen's NeoPop core
Super Nintendo Entertainment System/Super Famicom bsnes (v087, v115+), Snes9x (1.54), Mednafen (SNES-Faust)
Super Game Boy/Game Boy/Game Boy Color Original, Gambatte, bsnes (v087, v115+), SameBoy
TI-83 Original, Emu83
TIC-80 Ported
Uzebox Uzem


As of version 1.11.4.

Core Compatibility
2048 Okay
FCEUmm Okay
mGBA Okay
Emux Okay (Game Boy/Game Boy Color only)
FinalBurn Alpha (Arcade) Okay
Imageviewer Okay
Mednafen Okay (Neo Geo Pocket only)
Gambatte Okay
FFmpeg Okay
DeSmuME Okay
Opera Okay
PokeMini Okay
bsnes (v087) Not Okay
Mupen64Plus Not Okay
blueMSX Not Okay
fMSX Not Okay
FUSE Not Okay
FinalBurn Alpha (Neo Geo) Not Okay
Handy Not Okay
DOSBox Not Okay
vecx Not Okay


  • Full screen support
  • Controller and hotkey mapping
  • Joypad support (for both controller and hotkeys)
  • Auto/rapid fire controls
  • Re-recording and savestates
  • "Bullet-proof" rerecording
  • Frame/lag/re-recording counters
  • Input display
  • Auto-hold
  • TAStudio
  • RAM watching/poking tools
  • RAM searching
  • Lua scripting
  • Rewind
  • Audio and video recording
  • Custom plugin support
  • Libretro support (1.11.4 onwards)