

For this reason settlements across the land erect floodlights at the edges of their territory to repel daemons. The daemons can only exist in the dark, though, and are weakened by light. During the night daemons rise from the shadows, horrific monsters with supernatural powers that seek only to destroy and kill. While Niflheim and Lucis war, the entire world lives in fear of the darkness. Niflheim continues their push into Lucis, their eyes ever on Insomnia and the Crystal.

Over the years Niflheim develops technological advances that allow them to press their advantage, forcing the Lucians to retract the Wall to merely shielding the crown city of Insomnia. For decades the expansionist Empire of Niflheim has been at war with Lucis, but while they have conquered most of the rest of the world, they cannot touch Lucis due to the Crystal powering a magical barrier that shields the nation from harm. In the world of Eos, the Kingdom of Lucis possesses a Power Crystal that affords its nobility magical powers.

note Game director Hajime Tabata has stated that while XV thematically remains part of Fabula Nova Crystallis, its mythos has since "disconnected" from the subseries's core structure, and features lore vastly different from that of XIII and Type-0. It is the sixth entry in the Fabula Nova Crystallis: Final Fantasy subseries, sharing a common mythology with Final Fantasy XIII and Final Fantasy Type-0, albeit with no direct connection. Final Fantasy XV, formerly known as Final Fantasy Versus XIII before its rebranding in 2013, is the fifteenth main entry in the game-delayingly popular Final Fantasy series.
