https://www.udemy.com/csharp-gamedev
To build this project you need the assets distributed with the Udemy course
(https://www.udemy.com/csharp-gamedev)
Therefore you will have to buy the course on udemy and download the provided
Unity Assets Package, import it into the project and put the different files into
corresponding folder inside the project.
(e.g. Meshes --> Models | Audio --> Sounds | etc.)