Writing a world generator - Spawning system tutorial for Unity

1 - Intro:

In this tutorial, I hope to show you how to write a script that will run when the game starts and go over your game world, spawning objects randomly to represent terrain and items/world objects.

It should, when finished, look like this:

Farley 2000 - 2D Space Sim project.

My current project, nicknamed 'Farley 2000' in honor of the workmate that inspired the idea, is a 2D, Side-On, Space sim kinda game being made in the Unity 3D game engine.