Kega Fusion

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Kega Fusion
Developer(s) Steve Snake
Last version 3.64
Active No
Platform(s) Windows, Linux, macOS
Emulates SG-1000
Master System
Game Gear
and more
Website carpe ludum
License Proprietary
BIOS/Keys Required for Sega CD and 32X

Kega Fusion is a closed-source Sega SG-1000, SC-3000, SF-7000, Master System, Game Gear, Genesis/Mega Drive, SVP, Pico, Sega/Mega CD and 32X emulator.


Windows Latest release


A high-quality emulator with high compatibility. Unfortunately, it's closed source and no longer updated. For this reason, other Sega Genesis emulators have surpassed it in terms of compatibility. Genesis Plus GX has 100% commercial game compatibility. However, it lacks the 32X support that Kega Fusion has.


On Windows 10, an incompatibility issue causes the emulator to freeze once attempting to switch to fullscreen mode. However, this can be easily fixed by right-clicking on Fusion.exe > Properties > Compatibility > check "Disable Fullscreen Optimizations."


  • Support for up to 4 (5??) simultaneous people
  • Can emulate every console, handheld and peripheral released before the Sega Saturn
  • In-game chat, so you don't have to switch between windows
  • Every player can share Controller 1 at the same time so you can take turns with single player games
  • Netplay can be finely tuned to give the smoothest experience possible (with slight input lag)
  • The emulator is extremely sensitive and desyncs if you focus on another window, move the window around or minimize it
  • Chat messages appear too briefly on screen