The light novel series has inspired two television anime, an anime special, and the anime film Sword Art Online the Movie: Ordinal Scale.
A television anime of the Alicization arc and a separate television anime of Keiichi Sigsawa’s Sword Art Online Alternative Gun Gale Online novel spinoff are also in the works.
The official Twitter account for Kadokawa’s Dengeki Bunko imprint noted that Volume 59 of the Dengeki Bunko magazine published the prologue chapter for the new “Unital Ring” arc of Reki Kawahara’s Sword Art Online light novel series on Saturday.
Kawahara added that the Virtual Reality Massively Multi-player Online projects that have appeared in the story thus far have evolved through Sword Art Online, ALfheim Online, and Gun Gale Online.