Needs step by step instructions on how to build a game

So I have seen the territorials and they are a little to brief for my level of understanding. Is anyone willing to teach step by step while helping me to create a video game how this stuff all works??

Here’s a mini-course that was created from one of Unity’s “brief” tutorials:

http://masteringunity2d.com/unity-2d-tutorial-bouncing-and-sliding-step-by-step/

It requires registration on the site, but is free. It also may be too basic for you – it was designed for people who were completely new to Unity and programming. (It’s the first part of the CS109 course used at the University of Alaska.)

Jay

So I just read one of the class tutorials which made a lot more sense but dio I need to purchase for example a terrain package for the terrain to be installed???