Contents
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.
| File or directory | Purpose |
| 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 |
| File extension | Type |
| air | Animations (text) |
| def | Definition file -- has various uses depending on the filename (text) |
| fnt | Font file -- old version; new font files are a pair of .fnt and .sff |
| sff | Sprite file |
| snd | Sound file |
| Example file | Type |
| player.air | Animations (text) |
| player.cmd | Character commands and move definitions (text) |
| player.cns | Character states and behavior (text) |
| player.def | Basic info and filenames of files used by the character (text) |
| player.sff | Character sprites |
| player.snd | Character sounds |
| File | Type |
| common1.cns | Behavior information common to all characters (text) |
| common1.snd | Sound effects that all characters can access |
| fight.def | Defines the look and feel of the fight screen, i.e. lifebars, etc (text) |
| fight.sff | Sprites used in the fight screen |
| fight.snd | Sounds used in the fight screen |
| fightfx.air | Animation data for in-fight effects, such as hit sparks |
| fightfx.sff | Sprite data for in-fight effects |
| select.def | Defines what characters and stages are included in the game |
| system.def | Defines the look of the system screens, such as title and character select screen |
| system.sff | Sprites used for the system screens |
| system.snd | Sounds used for the system screens |