This paper will present a transmedia project consisting of the play King Aproduks, and the concept for two narrative and media extensions (a film and a video game). It is unquestionable that transmedia storytelling as a "technique of telling a story or experiencing a story across multiple platforms and formats using current digital technologies" can also apply to theater performances, given that they have also partly moved into the digital world, especially during the pandemic. The narrative world is built so that it has the potential of a series of narrative extensions, offering the possibility of creating new stories that contribute to its expansion and construction. Also the main character, a mythical monster, can be developed on different platforms with a high potential to adapt, upgrade and expand the overall world building. Play, the medium from which the project begins creates a setting in which the viewer can wonder what happened before and what will happen after, and the concepts of narrative extensions are set with an awareness of the potential of emotional engagement, interactive approach, marketing possibilities and further expansion and production meanings.