To create our game we use a game engine called Unity. There are many versions of Unity and it can get overwhelming. Luckily we already chose the versions and you just have to download the correct version.
The Unity version we use is 2021.3.20f1
If you have this version installed already and you cloned the repo successfully then you are good to go.
If not, here is where to download the specific version: HERE
The video below has detailed instructions if you need them.