I don’t know how to use unity and the tutorials didn’t work, i was going to check out youtube when i heard about the Playground Project where you can make games without necessarily coding, I downloaded the files but I don’t know how to install them to unity and there were no guides anywhere.
I’ve never heard of the Playground Project - it might help if you provided the link where you downloaded the files from. If it’s a .unitypackage file, you need to import it into an existing project. If it’s a series of folders called “Assets”, “Library” etc. then that is a Unity project - open it with File - Open.
Also I recommend you check out the official Unity training and documentation by clicking the “Learn” tab at the top.of this page.
Hey, I am the guy who made it 
A bit late to the party, but for everyone’s future reference:
tanoshimi is correct, when you download it it comes out as a project. The reason is that the project requires some tags, and importing the ProjectSettings allows me to know that the tags are already there!
As a guide, you can use this for now: GitHub - Unity-Technologies/UnityPlayground: A collection of simple scripts to create 2D physics game, intended for giving workshops to a young audience. I’m coming up with better documentation (included in the download) soon!