Edugames4all MicrobeQuest! is a mobile game that aims to teach microbiology and create awareness about important healthcare issues among 9 to 12 years old. This article presents the game, discusses the game design and integration of the learning objectives into the game mechanics. An exploratory study has been performed to assess the game effectiveness in teaching the learning objectives integrated into the game. The study showed that the game can teach the learning objectives, however, the knowledge difference has not been statistically significant across all three learning objectives.