Mednafen is a portable, utilizing OpenGL and SDL, argument (command-line)-driven multi-system emulator with many advanced features.
It emulates:
- Atari Lynx.
- Neo Geo Pocket (Color).
- WonderSwan.
- GameBoy (Color).
- GameBoy Advance.
- Nintendo Entertainment System.
- Super Nintendo Entertainment System/Super Famicom.
- Virtual Boy.
- PC Engine/TurboGrafx 16 (CD).
- SuperGrafx.
- PC-FX.
- Sega Game Gear.
- Sega Genesis/Megadrive.
- Sega Master System.
- Sega Saturn (experimental, x86_64 only).
- Sony PlayStation.
Save states are supported, as is real-time game rewinding. Screen snapshots may be taken at the press of a button, and are saved in the popular PNG file format.
Due to the threaded model of emulation used in Mednafen, and limitations of SDL, a joystick is preferred over a keyboard to play games, as the joystick will have slightly less latency, although the latency differences may not be perceptible to most people.
Features include:
- Double-buffered video, enabled by default.
- Multi-threaded video blitting, allowing for a kind of software triple-buffering, and improving performance on SMP systems.
- Joystick support.
- Extremely versatile input configuration system; assign multiple physical buttons to a virtual button or action.
- Full-screen modes.
- Save states.
- Real-time game rewinding, up to 10 seconds.
- Remap hotkey functions and virtual system inputs to a keyboard, a joystick, or both simultaneously.
- Screen snapshots, saved in PNG format.
- Loading games from gzip and (pk)zip compressed archives.
Website: mednafen.github.io
Support: Documentation
Developer: bugzoom
License: GNU General Public License v2.0

Mednafen is written in C++. Learn C++ with our recommended free books and free tutorials.
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Huh. I thought Mednafen could run SNES and Mega Drive/Sega Genesis games too, among others. I had heard of it as a many-in-one emulator, so I thought of picking it up. Guess I was misled.
The project makes it VERY clear what it supports:
Atari Lynx
Neo Geo Pocket (Color)
WonderSwan
GameBoy (Color)
GameBoy Advance
Nintendo Entertainment System
Super Nintendo Entertainment System/Super Famicom
Virtual Boy
PC Engine/TurboGrafx 16 (CD)
SuperGrafx
PC-FX
Sega Game Gear
Sega Genesis/Megadrive
Sega Master System
Sega Saturn (experimental, x86_64 only)
Sony PlayStation
SNES and Megadrive are supported…
Mednafen is **** emulator. I was forced to port install from its source code. How to assign A-button on keyboard of my macbook? How to fix wrong aspect ration? I have no mind to read long long readme to start gaming. Only thing I can do is deleting this **** ****. Thack Madnafen. The ****, RIP.