Manga
A Certain Scientific Railgun is illustrated by Motoi Fuyukawa and started serialization in the April 2007 issue of ASCII Media Works' Dengeki Daioh. The first volume was released on November 10, 2007, and as of June 26, 2025, 20 volumes have been published. The series will end on March 27, 2026.[2] North American publisher Seven Seas Entertainment began distributing the Railgun manga from June 2011.[3]
Anime
A 24-episode anime television series adaptation that was produced by J.C. Staff and directed by Tatsuyuki Nagai aired in Japan between October 3, 2009, and March 20, 2010.[4] The anime was collected into eight DVD and Blu-ray Disc sets released between January 29 and August 27, 2010, with each volume containing a short story series titled A Certain Magical Index: Kanzaki SS. The series was licensed in North America by Funimation, who released the series on DVD on April 16, 2013.[5][6] A bonus episode was included with a visual book released on July 24, 2010, and an original video animation (OVA) was released in Japan on October 29, 2010.[7]
A 24-episode second season, also directed by Nagai, titled A Certain Scientific Railgun S, aired in Japan between April 12[8] and September 27, 2013. It was simulcast by Funimation, who released the series on DVD in North America in two parts on July 1, 2014, and August 19, 2014, respectively.[9][10] Another bonus episode was released with a visual book released on March 27, 2014.
A third season titled A Certain Scientific Railgun T aired from January 10 to September 25, 2020.[11][12] The third season ran for 25 episodes. Two bonus anime were released from the third season's first and fifth Blu-Ray/DVD volumes.[13] Unlike previous seasons, the season was simulcasted on both Funimation and Crunchyroll, with Crunchyroll streaming the series in Japanese with English subtitles, and Funimation streaming the English dub.[14][15][16] The three seasons, including the OVA, were released on Hulu in Japan on March 24, 2022.[17]
A fourth season was announced during the "Dengeki Bunko Winter Festival 2025" livestream event on February 16, 2025.[18]
Music
The anime adaptation of A Certain Scientific Railgun has five pieces of theme music, two opening themes and three ending themes. The first opening theme is "Only My Railgun" by fripSide, and the first ending theme is "Dear My Friend -Mada Minu Mirai e-" (Dear My Friend －まだ見ぬ未来へ－) by Elisa. The song "Smile (You & Me)" by Elisa, which uses the same tune as "Dear My Friend (Mada Minu Mirai e)", is featured as the ending theme for episode twelve. The second opening theme is "Level 5 Judgelight" by fripSide and the third ending theme is "Real Force" by Elisa. "Only My Railgun" appears in Konami's arcade music games Pop'n Music 20: Fantasia, Dance Dance Revolution X2 and Jubeat Knit. For the OVA, the opening theme music is "Future Gazer" by fripSide, the single of which was released on October 13, 2010, while the ending theme is "Special One" by Elisa, the single of which was released on October 27, 2010.[19] The opening theme for the A Certain Scientific Railgun PSP game is "Way to answer" by fripSide.
For A Certain Scientific Railgun S, it has six pieces of theme music, two opening themes and four ending themes. The first opening theme is "Sister's Noise" by fripSide and the first ending theme is "Grow Slowly" by Yuka Iguchi, the latter of which was released on May 15, 2013.[20] The song "stand still" by Iguchi is featured as the second ending theme for episodes 11 and 14.
Music
The anime adaptation of A Certain Scientific Railgun has five pieces of theme music, two opening themes and three ending themes. The first opening theme is "Only My Railgun" by fripSide, and the first ending theme is "Dear My Friend -Mada Minu Mirai e-" (Dear My Friend －まだ見ぬ未来へ－) by Elisa. The song "Smile (You & Me)" by Elisa, which uses the same tune as "Dear My Friend (Mada Minu Mirai e)", is featured as the ending theme for episode twelve. The second opening theme is "Level 5 Judgelight" by fripSide and the third ending theme is "Real Force" by Elisa. "Only My Railgun" appears in Konami's arcade music games Pop'n Music 20: Fantasia, Dance Dance Revolution X2 and Jubeat Knit. For the OVA, the opening theme music is "Future Gazer" by fripSide, the single of which was released on October 13, 2010, while the ending theme is "Special One" by Elisa, the single of which was released on October 27, 2010.[19] The opening theme for the A Certain Scientific Railgun PSP game is "Way to answer" by fripSide.
For A Certain Scientific Railgun S, it has six pieces of theme music, two opening themes and four ending themes. The first opening theme is "Sister's Noise" by fripSide and the first ending theme is "Grow Slowly" by Yuka Iguchi, the latter of which was released on May 15, 2013.[20] The song "stand still" by Iguchi is featured as the second ending theme for episodes 11 and 14. The second opening theme is "Eternal Reality" by fripSide[21]
Video games
A visual novel based on A Certain Scientific Railgun for the PSP was released on December 8, 2011, after facing several delays, and comes in a special edition which includes a Kuroko Shirai Figma figure.[27][28] Fuji Shoji released a pachinko based on the series, titled A Certain Scientific Railgun P, on January 24, 2022.[29]
Light novel
A light novel consisting of four stories about Mikoto, Kuroko, Kazari, and Ruiko was released in Japan on June 10, 2022. It is written by Kamachi and illustrated by Kiyotaka Haimura, Fuyukawa, Chuya Kogino, Arata Yamaji, Yasuhito Nogi, Teto Tachitsu, and Nankyoku Kisaragi.[30]
