FFXIV World Compendium

From the introduction: This Sourcebook contains spoilers for Shadowbringers expansion and it will contain Endwalker spoilers, if you have not yet completed the Main Story I recommend playing through that first. There were some plot elements that were introduced in that expansion that changes the way we fundamentally see the lore. These spoilers also inspired me to create new ideas that GM's can use to use to tell their own version of this story.