In this chapter, you learned all the steps involved in expanding a game with in-app purchases. In-app purchases enable you to make your game more complex with an additional functionality such as letting players pick new mechanics à la carte and providing one-time-use items to get players out of a tough spot or to the next level more quickly.

You also learned about Unity Asset Store, accessible through the Window menu in Unity. The asset store is a community-driven site where developers can upload packaged Unity tools, either for free or for a price. If you ever want to implement new mechanics that you don't have any experience with and you don't know where to start, Unity Asset Store is a good jumping-off point.

Now that you've had a chance to experience every element your games can contain, we'll discuss packaging your final games and preparing them for deployment on the OUYA marketplace in the next chapter.