you ask any gamer what makes a game fun, they will not tell you that it is because of the PBLs. They play it because there are elements of strategy and great ways to spend time with friends, or they want to challenge themselves to overcome difficult obstacles. The points and badges are often an added bonus that’s nice to have depending on the context. This is the difference between extrinsic motivation, where you are engaged because of a goal or reward, and intrinsic motivation, where the activity itself is fun and exciting, with or without a reward.
