Game design as an instructional tool can be expensive and time-consuming, as new software requires not only capital outlay but also training for teachers and students. Therefore, researchers have looked at low-tech design platforms to accomplish the same educational goals. One such way is to use Microsoft PowerPoint as a game design tool. In the second iteration of a design study, we have changed the way a homemade PowerPoint game project is implemented in an environmental chemistry classroom by providing more structure and more opportunities for instruction and feedback on the elements of the game design. We compared the performance of between groups who created games and groups who did not on tests for two separate units. Both test results showed statistically significant differences: in favor of the control group on the first unit and in favor of the group creating games for the second unit. Further research needs to examine which factors led to the significant findings in both instances