This document discusses experience design for transmedia story worlds. It advocates for an installment or episodic approach to transmedia projects that allows each part to be independently funded while building toward a larger whole. It presents a case study of a transmedia sci-fi thriller called Saligia-7 that bridges multiple media formats. The document also provides considerations for audience engagement, building communities around stories, and bringing together producer vision, research, and design documents to plan transmedia projects.