This article examines how narrative structures in games, from linear to non-linear and fragmented storytelling, shape player experience. Drawing on Chatman's narratology, it explores the interplay between story and discourse. Key design methods include mimetic narrative, amusement park models, and environmental storytelling. The piece details mission design workflows—structuring story, events, and steps—and offers practical tips for pacing, player agency, and open-world integration. It emphasizes that narrative should be embedded in gameplay, not detached, with fragmented narratives encouraging player interpretation. The author shares insights from projects like Elden Ring and The Witcher 3, highlighting the importance of iterative testing and cross-department collaboration.