Novels Season 1 Takumi Yanai, a former member of the JSDF, initially published the work on the user-generated content site
Arcadia from April 2006 until June 2009 under the pseudonym . In 2010,
AlphaPolis made an arrangement with him to publish his work in print. The first two web novel volumes were slightly altered to make them less nationalistic whereas the third, and final, web novel volume was rewritten and expanded into three volumes. These five volumes were published from April 12, 2010, to January 5, 2012, with cover illustrations by Daisuke Izuka. The original web novels were later removed from
Arcadia. The series has continued with five volumes of side stories as of October 10, 2012. On January 6, 2013, AlphaPolis began a reprint of the series as a
light novel, where each novel volume was split into two small-sized light novel volumes in
bunkobon format, as well as new cover and inside illustrations by Kurojishi. On March 25, 2026 Hanashi Media started publishing the novel series in English. A supplementary prequel novel titled , which details the events surrounding the Ginza Incident, was published in two volumes between December 31, 2021 and August 31, 2022.
Season 2 A sequel novel series, , centers on a new set of characters from the
Maritime Self-Defense Force. In season two, the JMSDF's Goro Etajima and his subordinate Koji Tokushima's travel around designated countries with research and exploration duties. With the reopening of the gate, the Japanese government continues to maintain control of the "gate" monopoly in the international community. This requires the government to focus on both domestic politics as well as terrain investigations in the new world as modest relationships are formed with local residents. Daisuke Izuka returns as the illustrator for the novels. Five volumes have been published with the first volume released on August 8, 2017, and the fifth volume released on November 30, 2020.
Manga There are seven manga series based on
Gate, all published by AlphaPolis. The first manga, drawn by Satoru Sao, began publishing on July 30, 2011. This manga is licensed in English by Sekai Publishing, but only the first two volumes have been translated, with Sekai stating quality problems with the volume 2 copies in 2018. Following the release of volume 2 in 2020, Sekai Project canceled subsequent volumes. The second manga, titled
Gate! Yonkoma, is a
yonkoma comic strip comedy drawn by Kuinji 51-gou, began on January 15, 2015, and ended on July 23, 2015. The third manga, drawn by Yukie Shiren and titled
Gate: Teikoku no Bara Kishidan - Piña Co Lada 14-sai, which is a prequel story with Piña as the main protagonist, began on March 19, 2015, and ended on April 7, 2016, has 2 volumes. A fourth manga, drawn by
Chako Abeno and titled
Gate: featuring The Starry Heavens, which depicts the three main female characters becoming music idols, began on March 19, 2015, and ended on April 28, 2016, has 2 volumes. A fifth spin-off manga, drawn by Tomo and titled
Mei☆Company, is based on the in-universe manga in the
Gate series, began on March 19, 2015, and ended on October 22, 2015, has 1 volume. A sixth manga series based on
Gate: Zero, illustrated by Ryuichi Saitaniya, began serialization online on March 13, 2024.. A seventh manga series based on
Gate Season 2, illustrated by Satoru Sakano, began serialization online on February 27, 2026.
Anime An
anime television series adaptation was produced by
A-1 Pictures and directed by Takahiko Kyōgoku. The series' character designs are based on the light novel illustrations. The first 12 episodes aired in Japan between July 4 and September 18, 2015. The second half aired on
Tokyo MX from January 9 to March 26, 2016. It was streamed online by
Crunchyroll and is licensed by
Sentai Filmworks in North America. From episode 1 to 12, the opening theme song is by
Kishida Kyoudan & The Akeboshi Rockets and the ending theme song is by
Hisako Kanemoto,
Nao Tōyama, and
Risa Taneda. Sentai Filmworks released a complete collection of the series on Blu-ray and DVD on July 11, 2017. For the second half, the opening theme is by Kishida Kyoudan & The Akeboshi Rockets, and the ending theme is by Kanemoto, Tōyama, and Taneda. In 2017, scholar Takayoshi Yamamura noted that anime was produced in the collaboration with the
JSDF Tokyo Provincial Cooperation Office. He further pointed out that the original author formerly was a JSDF officer and said he proposed the cooperation with the office in the first place. Yamamura also noted in 2015 the JSDF entered their vehicles into a contest in
Ōmiya-ku, Saitama, painting them with anime characters. An anime television series adaptation of the sequel series was announced on July 4, 2025. The series will be produced by Kasagi Labo, Oshi and
Genco, animated by Studio M2, and directed by Tōru Takahashi, with Tatsuhiko Urahata returning to handle series composition, Shigeru Fujita designing the characters, and Yoshiaki Fujisawa returning to compose the music. It is set to premiere in 2027. ==Reception==