All about GMD Files

The GMD file type is primarily associated with GameMaker Studio.

GMD	File extension: GMD
	File type:	data file

What is a GMD file?

GMD files mostly belong to GameMaker Studio. GMD files serve different roles in game development and multimedia data storage.
For many files, they function as game message data or project files used by GameMaker Studio. These files can store instructions, dialogue, and other in‐game event data.
They also appear in 3D modeling contexts where they hold model data for games built on engines like GameCube and Gamebryo. This use is seen in titles such as Yakuza Kiwami 2.
Additionally, some GMD files are part of proprietary formats in video surveillance, where they store CCTV recordings and are used with viewers like XNGView.
Another related use is in game level design. For example, Geometry Dash uses GMD files to keep level data. More details are available on the Geometry Dash Wiki.
Key uses include:

GameMaker Studio files: for game messages and project data

3D Model data: for in-game models and geometry

Surveillance files: for proprietary CCTV video formats

Game level data: for design elements in games like Geometry Dash

FilExt.com tip: Always use the specific tool that created the file to open it properly.

How to open GMD files

You need a suitable software like GameMaker Studio to open a GMD file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your GMD file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GMD file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GMD Text Viewer

Choose your .gmd file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert GMD files:

GameMaker Studio
See the previous paragraphs to learn more about the main application. GMD files are often referred to as GameMaker Studio games because this type of file is primarily created or used by this software.
Game Maker (Stored Game Under Development) by YoYo Games Limited
Game Maker allows you to make computer games, without the need to write a single line of code. You can make games with backgrounds, animated graphics, music and sound effects, and even 3D games. Game Maker was written by Mark Overmars. He is a full professor at the Institute of Information and Computing Sciences at Utrecht University in the Netherlands. On Feb 28 2007 version 7.0 of Game Maker was released through the YoYo Games website.
Great Budget (Model Definition for the Template) by Great Budget Software
Great Budget Software is a project centric planning and control system that can be integrated with your existing data or be your primary system.
IMAGINE (Graphical Model) by Erdas
ERDAS IMAGINE is a tool for building (and executing) geographic expert systems for image classification, post classification refinement, and advanced GIS modeling.

GMD file format details:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. File extension, signature and file format must match; otherwise errors will occur when the file is opened. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the GMD files looks like this:

The file type with the extension 'GMD' includes different formats for different programs. But the following two file formats are common:

45% of all GMD files start with the bytes GMD, which are crucial for this file format. These files contain neither text nor words, but only data. The average file size is 6 KB with most files being between 2 KB and 79 KB in size. This file type is based on cutting-edge technology. Examples of file names are skill_eng.gmd. These files are attributed to skill, item, language, message, special, builders, training, replace, movie and parts.
20% of all GMD files use the same file format, which have the signature GSGM. These are binary files, so they do not contain words or text. The files are 12 KB to 2 MB in size, with a median of 1 MB. The following keywords are characteristic: GSGM and GSGM!. The file name c_am_kiryu.gmd or c_cz_x_CIdress_A.gmd is characteristic of these files. These files are attributed to kiryu, cidress, karaoke and majima.

The remaining 35% of all GMD files are files with no common format, often e.g. GFS. They are often associated with tutorial, common, macro or names. You can get all the details of your GMD file by dragging it onto this page or by clicking the button "Choose your .gmd file to analyze" above.

Technical Data for GMD File Extension

File classification:

Game

Related files:

gms, gml, gfs, xng, mdl, gap, dmg, gdm, gmt, gui, mib, gma, par, zip, data, gb1, gmk, gmr, xml, dat

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Winamp.File, FileType: Winamp media file, AppName: Winamp
EXEFile: winamp.exe

ProgramID: gmdfile
EXEFile: %ProgramFiles%\Game_Maker5\Game_Maker.exe %1

ProgramID: Winamp.File
EXEFile: %ProgramFiles%\Winamp\Winamp.exe %1

ProgramID: GroupMail5Message
EXEFile: %ProgramFiles%\GroupMail 5\GMEdit.exe

ProgramID: gmdfile_data_file
EXEFile: %ProgramFiles%\IK Multimedia\GrooveMaker Demo\GrooveMaker.EXE

Show all 5 listings To Top

a gmd data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with GMD files

Associate the GMD file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest GMD file format. Search, therefore, e.g. on the manufacturer website after an available GameMaker Studio update.
To make sure that your GMD file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .GMD file online - secure, fast, and no downloads needed.