The result is that Sword Art Online is one of the most popular anime series of all time, even if there are plenty of fans who hate on it. 8 janv. 2021 · RELATED: Sword Art Online: All Arcs In The Anime, Ranked The simple answer is yes, The Seed remains an important item to Sword Art Online, as it was stated that all games in the series are based upon The World Seed.