I don't have any tutorials, but I do release the source for my games! You can view the source for this game here. My other games include the source in their downloads, if you want to check those out.
wow thats generous thanks. I haven't even started on GDscript yet! but sometimes taking apart things is the best way to learn. Is there a way to load the whole project at once into GODOT?
You can download the whole project, put it in a folder, and then when you launch Godot press the button "Import", you can then browse to the project's folder and open it.
