Install the Godot Addon to get started:

1. If you haven't gotten started with Blender yet, take a look at that first.
2. Once in your project, click on AssetLib at the top of the Godot editor.
3. Click the Import... button.
4. Select the Folded Paper Engine Godot addon zip file.
5. Click Open.
6. Click on the Plugins... button.
7. Check the box next to Folded Paper Engine to enable it.
8. Click Close.
9. Restart Godot.

Setup your Scene:

1. Create a new 3D Scene.
2. Right click on the base node in your new Scene and select Add Child Node....
3. Search for and add a WorldEnvironment.
4. Add another child node, search for and add a FoldedPaperEngine node.
5. Select the FoldedPaperEngine node in the Scene tree.
6. In the Inspector panel on the right side of the editor, click the document icon next to the Path property.
7. Find and select your GLB/GLTF file.
8. Click Open.
9. Next to the Environment property, click Assign....
10. Select your WorldEnvironment and click OK.
11. You may want to add some lighting, like a DirectionalLight3D so that you can see what's in your Scene.
12. CONGRATS! You can now run your game! (Controllers and WASD keys will control your Player.)