Extended Reality (XR) shapes how people experience emotion, narrative, and embodiment. This course approaches XR as a worldmaking practice, treating virtual space as an interface through which cultural and experiential meaning emerges. Students explore XR environments as sites of empathy, identity, and relationality, connecting critical theory with hands-on spatial storytelling. Through readings, case studies, and prototyping, students create XR experiences using Unity3D, photogrammetry, Gaussian splatting, and selected AI-based tools. The course culminates in a first-person XR walking simulator presented in VR. Instruction begins from foundational concepts, and no prior coding or XR experience is required.