Final Fantasy XIII, Final Fantasy XIII-2 and Lightning Returns: three games which, for some, crystallize the decline of the Square Enix studio and the Japanese role-playing game as a whole. For others, they are unforgettable, astonishing, radical adventures. Whether we appreciate the FFXIII trilogy or not, what it tells us, in the story of its conception as in its very story, is valuable. The Legend of Final Fantasy XIII is an invitation to understand the complex issues surrounding development great video games, but also to explore the esoteric contours of a surprising story, which is based on a myth entirely imagined for this trilogy!