Dark Souls III

Dark Souls III is set in the kingdom of Lothric, where the First Flame, which sustains the Age of Fire, is fading. To prevent the coming Age of Dark, a champion must link the fire by sacrificing themselves to rekindle it. Prince Lothric, who was chosen for this task, refuses to do so. In response, a bell tolls and awakens the Lords of Cinder, previous champions who linked the fire in earlier ages. Most of them abandon their thrones at Firelink Shrine, leaving only Ludleth of Courland behind.
The player character, known as the Ashen One, is an Unkindled: an undead warrior who previously failed to link the fire. The Ashen One is resurrected and tasked with returning the Lords of Cinder to their thrones. They defeat the Abyss Watchers, a legion of warriors sworn to fight the Abyss; Yhorm the Giant, a ruler who once linked the fire for his people; Aldrich, a cleric who became a Lord of Cinder after devouring others; and Prince Lothric, who is protected by his elder brother Lorian.
After the Ashen One returns the Lords' cinders to their thrones, they travel to the Kiln of the First Flame. There, they defeat the Soul of Cinder, a manifestation of those who previously linked the fire. Depending on the player's actions, the Ashen One may rekindle the First Flame, allow it to fade, or claim its power for themselves.

Ashes of Ariandel

In Ashes of Ariandel, the Ashen One meets Gael, a slave knight who asks them to enter the Painted World of Ariandel. The painted world is decaying, and some of its inhabitants believe it must be burned away so that a new world can be created. Sister Friede, who has taken control of the world, opposes this and persuades Father Ariandel to prevent the flame from spreading.
The Ashen One defeats Friede and Father Ariandel, causing the Painted World to begin burning. A young painter thanks the Ashen One for showing her flame and says that Gael has gone to find a pigment she can use to paint a new world.

The Ringed City

In The Ringed City, the Ashen One travels to the Dreg Heap, a collapsed landscape where ruined kingdoms from different eras have converged at the end of the world. Following Gael's trail, the Ashen One reaches the Ringed City, an ancient city associated with the Pygmies, the ancestors of humanity.
After awakening Princess Filianore, the Ashen One is transported to an ashen wasteland, where they find Gael seeking the blood of the Dark Soul for the painter in Ariandel. The Ashen One defeats Gael and gives the Blood of the Dark Soul to the painter, who uses it to begin creating a new painted world.