Sword Art Online Alternative Gun Gale Online

Sword Art Online Alternative Gun Gale Online (ソードアート・オンライン オルタナティブ ガンゲイル・オンライン) is a Japanese light novel series written by Keiichi Sigsawa and illustrated by Kouhaku Kuroboshi. The series is a spin-off of Reki Kawahara's Sword Art Online series. A manga adaptation by Tadadi Tamori launched in 2015, and an anime television series adaptation produced by studio 3Hz aired between April and June 2018. A second season produced by A-1 Pictures is set to premiere in October 2024. Both the light novel and the manga adaptation are published in North America by Yen Press, while the anime is licensed by Aniplex of America.

Plot
Due to the incident that occurred in VR MMORPG Sword Art Online—where 10,000 players were trapped in the game on launch day—the popularity of VR games has plummeted due to fear of similar incidents. The NerveGear, SAO's VR device, was recalled and destroyed, but with the launch of its successor, the AmuSphere, combined with release of the license-free development support package the "Seed", the popularity of VR games saw a sudden resurgence.

The story follows Karen Kohiruimaki, a university student with a complex about her abnormal height. She begins playing a VR game called Gun Gale Online after it gives her the short, cute avatar that she has always wanted.

Print
Dengeki Bunko announced on September 18, 2014, that Keiichi Sigsawa would be writing a light novel based on Reki Kawahara's Sword Art Online light novel series. The series is supervised by Kawahara and illustrated by Kouhaku Kuroboshi, and ASCII Media Works published the first novel under the Dengeki imprint on December 10, 2014. During their panel at Anime NYC on November 18, 2017, Yen Press announced that they had licensed the series.

Tadadi Tamori launched a manga adaptation in ASCII Media Works seinen manga magazine Dengeki Maoh on October 27, 2015. During their panel at Sakura-Con on April 15, 2017, Yen Press announced that they had licensed the series in North America.

Anime
An anime television series adaptation was announced at the Dengeki Bunko Fall Festival 2017 event on October 1, 2017. The series is directed by Masayuki Sakoi, written by Yōsuke Kuroda, produced by Egg Firm and animated by studio 3Hz, with character designs by Yoshio Kosakai. The opening theme is "Ryūsei" (流星) by Eir Aoi and the ending theme is "To See the Future" by Llenn (Tomori Kusunoki). The series aired in Japan between April 8 and June 30, 2018, on Tokyo MX, BS11, Tochigi TV, Gunma TV, MBS, and TV Aichi. The series was released on 6 home video sets with 2 episodes each, for a total of 12 episodes. Aniplex of America has licensed the series and simulcast the series on Crunchyroll and Hulu. Anime Limited announced that they had acquired the series for release in the United Kingdom and Ireland. Madman Entertainment acquired the series for release in Australia and New Zealand, and simulcasted the series on AnimeLab.

To promote the anime, Tokyo Marui made a limited edition FN P90 submachine gun with a pink finish as part of a collaboration with Keiichi Sigsawa and Kōji Akimoto, the latter who worked on the air gun's color. The pink P90 was raffled to the public through a raffle in a collaboration with Pizza Hut Japan, in which two of them were awarded to contestants.

A second season was announced at the Dengeki Bunko 30th anniversary event on July 15, 2023. The main cast and staff members are returning from the first season, with A-1 Pictures as the studio. It is set to premiere in October 2024.

Video game
Llenn, Pitohui, M, and Fukaziroh made their video game debut in Sword Art Online: Fatal Bullet as a free update. They later have a major role in the DLC episode "Dissonance of the Nexus", which is also the first time they interact with the main series characters.

Reception
During the first half of 2015, the series was the eleventh best-selling light novel series, with its first and second volumes ranking at eighth and seventeenth place, respectively. The fourth volume also managed to be the 25th best-selling novel during the first half of 2016. By May 2018, the series had 1 million copies in print.