In effect, the shopping or the inventory system is just a backdrop for this chapter. Its main purpose is to make you stop and think how you are going to actually make money from all your hard-earned efforts. With all the best will in the world, there has to be some return for all your labor, from recognition and sharing (which is what I mostly end up doing) to actually earning money. If you earn money, how are you getting paid, per installation, or a reoccurring revenue stream through in-app purchases?

Whichever way you go, stop and think carefully about it; don't leave it until you have finished, or in all likelihood you will be disappointed.

We covered monetization and what it means, building a GUI using the 2D system, the basic Unity3D GUI, and planning for an effective inventory system.