In QuizMaster, we learn how to make a timer, how to get data from scriptable objects, how to define rules for winning and losing a game. We also learn more about Unity’s UI components. Also, this project is relatively complex in terms of how the single ‘modules’ Gary writes are connected with each other.
Decide yourself whether these subjects are relevant for you and your own game ideas. 
See also:
- Forum User Guides : How to mark a topic as solved