DGEngine core is a 2D game engine. It uses JSON files as configuration files.
You run the engine by passing as an argument the path of the archive/folder with the gamefiles.
Run like this:
DGEngine <gamefiles folder>
An initial json file is loaded that starts a game. Usually it's main.json in the root folder.
to run in portable mode, create a folder portable next to the DGEngine binary (current working directory).
On Linux, if using an AppImage, create a folder with the same name as the AppImage ending with .home.
DGEngine.AppImage (file)
DGEngine.AppImage.home (folder)
You can see more information about configuration files here.