Augmented Reality (AR) applications have the potential to improve students’ Chemistry learning performance. By identifying the unique features and affordances of this technology, we can design more effective tools to facilitate the learning process of abstract concepts. We developed Periodic Fable in the Wild, an AR serious game as an instrument to conduct design-based research. The game aims to facilitate the learning of abstract concepts related to the Periodic Table by children (9 to 13 years old). We intend to optimize our game by continuing our research with our target audience, analysing their feedback, making refinements and continuing testing.