How the Game Engine loads the scenes of a blend?

I am developing a prototype game scroll and have a doubt: The Game Engine loads all the scenes at once?

No, it loads only the active scenes.
That means when you add or switch scenes you get a delay for loading, converting and initialization.

Thanks for the reply. I am a member of the forum Blender Brazil ( and we have many users with this doubt.

Most-likely because the incorrectly use the module “bpy” ;).