The games module spreads out the time and effort required to complete the offer and get the promised reward. In a nutshell, the Games module tasks minimize the need for commitment to the task. This means that, for example, if during your initial time spent on some game, you decide that you do not like it, you would be able to quit and still gain some JMPT. If, for example, there was a requirement to reach level 10 on the first step of the offer, you can stop it right there without committing to reach any further levels. This provides certain freedom in regard to your choices and how much time you could spend completing the offer.