Designing a Mobile Game for Introducing Learners to a Soap Making Process

This paper presents the design of Bunno's Fabulous Soap-Making Challenge, a single-player mobile resource-management game intended both for entertainment and for teaching the kettle process of soap making. The document's central contribution is a detailed description, conceptual explanation, and critical discussion of the game's design, grounded in constructivist learning theory, which holds that learners build understanding by linking new information to prior knowledge through active, consequential experimentation. Players plan, source, and set up equipment, operate heaters and pots, and sell soap in an economically sustainable way, with the infrastructure-building and production loops reinforcing each other.

The authors describe a deliberate tradeoff between chemical accuracy and playability. The game simplifies the process along three dimensions: it models a single soap-making method, limits available equipment and materials, and abstracts item properties, such as removing fuel requirements and speeding up reactions. Certain inconsistencies, such as the intermediate product "trace" being unavailable for purchase, are acknowledged and accepted as tolerable. The design relies on text labels paired with iconography, immediate multisensory feedback in place of pop-up dialogs, and a small set of mutually integrated components that generate emergent complexity over time.

The educational content centers on the saponification reaction, the steps of creating a trace and curing it, and issues of scaling from small batches to larger production. The projected learning outcomes span basic recognition of materials and equipment, understanding of the order of operations, and grasp of dynamic interactions such as aligning equipment upgrades with growing batch sizes. The paper also notes that the game is designed without an explicit end condition, so players decide when to stop, and it positions the work as an attempt to show chemistry's everyday relevance and foster interest in STEM subjects. The article does not present empirical evaluation data from players.