Gridmonger Manual

User data folder

The user data folder stores data such as your program settings, user themes, auto saves, and the log file.

The location of the user data folder is C:\Users\<USERNAME>\AppData\Roaming\Gridmonger on Windows, and /Users/<USERNAME>/Library/Application Support/Gridmonger on macOS. For portable installations, it is the application folder where the executable is located.

The user data folder contains a number of subfolders (they will be created by the program if they don’t exist):


If autosaves are enabled, and the current map hasn’t been saved to a file yet, the autosave file Untitled.gmm will go into this folder. Also, in the rare event of a program crash, unsaved maps are automatically saved here too as Crash Autosave.gmm.


The configuration file gridmonger.cfg that contains the application’s settings resides here.


The logs from the last run are written to the file gridmonger.log in this folder. Log files from the last three runs can be found under the names gridmonger.log.bak1, gridmonger.log.bak2 and gridmonger.log.bak3.


The included HTML user manual.

User Themes

User themes are saved into this folder. This is where you should put themes shared by other users.

User Themes/Images

Images used by the user themes go here.


If the application folder contains a subfolder named Config, Gridmonger will attempt to start in portable mode. Technically, you can convert a standard installation into a portable one by moving the contents of your user data folder into the application folder. You can also convert a portable installation into a standard one by doing the reverse, but in practice you’re better off just using the standard installer, as that also sets up default file associations for Gridmonger map files (.gmm), and provides a standard uninstaller script.