Boletaria is a fictional kingdom featured in the video game series Demon's Souls. It is known for its dark and atmospheric setting, characterized by crumbling castles, treacherous landscapes, and a haunting history. The kingdom has fallen into despair due to the awakening of the Old One, a powerful entity that has unleashed demons upon the land. The game's narrative revolves around the player's quest to defeat these demons and restore peace to Boletaria. Players explore various regions, each filled with unique challenges and enemies, while uncovering the lore and secrets of the kingdom. The game's design emphasizes difficulty and strategic gameplay, making it a notable title in the action RPG genre.