If you are going to browse the included project files, then you will find that they were made with Unreal Editor 4.30; if you are using a higher version, it might let you know that the project will be upgraded to a higher version, which is an irreversible step unless you are running your project within a version control system such as Git. Just keep that in mind!
For this game sample, I made a blank project template without the starter content. I got some photos of real fruit and sliced each picture into two pieces. For example, a banana will have three sprites, the full fruit and another two sprites of it splatted. The game is a 2D game, but following the same approach with 3D assets will let you get the same result. As for the folder structure, you will find the following contents:
The blueprints folder: This contains all of the blueprints (regardless of types)
The levels folder: This holds three levels, which are the game itself and another two small levels for the...