Designing flexible game systems can be challenging, as it involves deciding how players interact with the game and how it responds to their actions. Current game design frameworks focus on player actions that change the game's state, but do not address how flexible systems impact player experience. To address this gap, a conceptual "adapter" is being developed to help game designers apply their existing tools to create more flexible game systems. This work aims to provide designers with the means to better understand and enhance player experiences in games with adaptable gameplay features.