Transmedia adaptation is a concept within media studies and cultural theory that examines the systematic extension of narratives and fictional worlds across multiple distinct media platforms. It investigates the processes by which cultural properties are transformed, expanded, and articulated through diverse forms and distribution channels. This academic concept focuses on how different media contribute uniquely to an overarching storyworld, often eschewing a simple source-to-target relationship in favor of a coordinated, non-redundant articulation across platforms. Its significance lies in providing a framework for analyzing contemporary media production, consumption, and the complex interplay of narrative, form, and audience engagement in a converged media environment.