You can download the latest version of Unity from the link below. NB ‘Unity Hub’ is the homepage for all Unity projects.
NB When you’ve installed Unity, you may need to create your user profile. This should be set for personal use (ie free).
Open Unity Hub & select ‘New Project’
Select ‘Karting Microgame’ and download (click the ‘cloud down’ icon). Once that is downloaded, you should now be able to create the project (NB Name shouldn’t contain spaces).
When the project is created, it should look something like the screenshot below. If it does, congratulations you’ve just created your first Unity project.