In Dark Souls, which boss is fought at the Kiln of the First Flame?

Gwyn, Lord of Cinder, is the boss fought at the Kiln of the First Flame in Dark Souls. The Kiln is the final area of the main game, reached after the player obtains the Lordvessel and defeats the required Lord Soul bearers.

The battle represents the end of Gwyn’s attempt to preserve the Age of Fire. By the time the player reaches him, Gwyn has become a burned and diminished figure guarding the First Flame. His swift attacks and fire-based abilities make the encounter a major test after the long journey through Lordran.

Players sometimes identify the boss simply as Gwyn, which is correct but less specific than the full in-game title. Other endgame bosses belong to different locations: Gravelord Nito is in the Tomb of the Giants, the Bed of Chaos is in Lost Izalith, and the Four Kings are in the Abyss.

The ending choice after the fight determines whether the player links the fire or walks away, giving the conclusion thematic weight beyond the battle itself.