(c) Elecbyte 1999-2011




If you are upgrading from an older version of M.U.G.E.N, please read the Upgrade Notes.

M.U.G.E.N is a 2D fighting game engine that is enables you to create commercial-quality fighting games. Almost everything can be customized, from individual characters to stages, as well as the look and feel of the game.

After downloading M.U.G.E.N, unzip it into a new folder and double-click mugen.exe to run.

The majority of content created for M.U.G.E.N tend to be distributed as individual characters, stages or motifs. Assembling a game is as simple as downloading the content of your choice, and configuring M.U.G.E.N to know about it.

M.U.G.E.N is designed to be used by people with little or no programming experience, but with some artistic talent and patience to learn. Of course, having some programming background does give you a bit of a headstart. However, if you are just looking to play with downloaded content, all you need to know is how to unzip files and edit a text file.

Here's a sampling of features you can find in M.U.G.E.N:

Game Engine

M.U.G.E.N is free for non-commercial use. If you have other needs, just ask us. You can read the full license text in the README file.

Contents and Files

File List

File or directoryPurpose
mugen.exe The main M.U.G.E.N executable
chars/ Directory containing character files
data/mugen.cfg Preferences and settings (text file)
data/select.def Character and stage config (text file)
data/ other files Motif files
docs/ Documentation
font/ Directory containing font files
old_tools/ Tools from older versions of M.U.G.E.N
sound/ Directory containing music files
stages/ Directory containing stage files

Global File Types

Files with these extensions can be found in various subdirectories in the M.U.G.E.N directory.
File extensionType
airAnimations (text)
defDefinition file -- has various uses depending on the filename (text)
fntFont file -- old version; new font files are a pair of .fnt and .sff
sffSprite file
sndSound file

Character Files

Character files are located as subdirectories in the chars/ directory. The files may be named differently for different characters.
Example fileType
player.airAnimations (text)
player.cmdCharacter commands and move definitions (text)
player.cnsCharacter states and behavior (text)
player.defBasic info and filenames of files used by the character (text)
player.sffCharacter sprites
player.sndCharacter sounds

Motif Files

Motifs are located as subdirectories in the data/ directory.
common1.cnsBehavior information common to all characters (text)
common1.sndSound effects that all characters can access
fight.defDefines the look and feel of the fight screen, i.e. lifebars, etc (text)
fight.sffSprites used in the fight screen
fight.sndSounds used in the fight screen
fightfx.airAnimation data for in-fight effects, such as hit sparks
fightfx.sffSprite data for in-fight effects
select.defDefines what characters and stages are included in the game
system.defDefines the look of the system screens, such as title and character select screen
system.sffSprites used for the system screens
system.sndSounds used for the system screens



Technical reference for M.U.G.E.N.


New to M.U.G.E.N? Get started with our tutorials.

Upgrade Notes