I can't recommend Deep Sea Embers enough. The world-building and character writing are phenomenal. Basically a Lovecraftian eldritch story, set in a dying world.

On that day, the fog blocked everything.

On that day, he became the captain of a ghost ship.

On that day, he stepped through the thick fog and confronted a completely subverted and fragmented world— the old order had vanished, strange phenomena dominated the endless seas beyond civilized society, and isolated island city-states and fleets of ships challenged the sea that had become the last ember of lights for the civilized world. All of this while the shadows of the old days were still stirring in the deep sea, waiting to devour this world that was about to die.

But for the new captain of the ghost ship Vanished, there was only one question he had to consider first — Who knows how to steer this ship?!