Main series

Spin-offs

Manga

A manga series based on the game titled Choujigen Game Neptune: Megami Tsuushin (超次元ゲイム ネプテューヌ ~めがみつうしん~) began serialisation in November 2010 within the Famitsu Comic Clear.

A manga series illustrated by Mikage Baku which complements the television animation, titled Hyperdimension Neptunia: The Animation – Hello New World (超次元ゲイム ネプテューヌ THE ANIMATION はろーにゅーわーるど), began serialisation within the June 2013 issue of Dengeki Maoh. A spin-off novel of the anime, titled Hyperdimension Neptunia TGS Hono no Futsukakan, was published by MF Bunko J and released May 25, 2013.^[29][30]

Anime

An anime adaptation, Hyperdimension Neptunia: The Animation, was produced by David Production of Japan and directed by Masahiro Mukai.^[31] Series composition and script writing are done by Shōgo Yasukawa and a musical score composed by Hiroaki Tsutsumi, Kenji Kaneko and Masaru Yokoyama. Character designs are done by Hitomi Takechi, based on the original designs by Tsunako along with art direction by Masanobu Nomura and sound direction by Jin Aketagawa. The twelve-episode series aired on Tokyo MX on July 12, 2013, and were later aired on BS11, KBS, Sun TV and tvk then finished on September 27, 2013. The series was acquired by Funimation for online streaming in North America with both the English dub and the original Japanese dub with English subtitles.^[32] The opening theme is "Dimension tripper!!!!" by nao and the ending theme is "Neptune☆Sagashite" (ネプテューヌ☆サガして) by Afilia Saga.^[33] "Go→Love&Peace" by Ayane is used as the ending theme of episodes 3 and 4, in addition to "Ito" (糸, literally "yarn") by Afilia Saga on episode 10. It was broadcast within the United States on Funimation Channel.

A new original video animation (OVA) titled Nepu no Natsuyasumi was announced to be in production. Returning staff members include Masahiro Mukai as director, Hitomi Takechi as character designer, and Shōgo Yasukawa as scriptwriter, with animation by studio Okuruto Noboru.^[34] It premiered on July 8, 2019.^[35] A second OVA titled Nep Nep Darake no Festival was bundled with "Dimensional Traveler Neptune Generator Unit ver." 1/7 scale figure, which was released on December 15, 2021. A third OVA titled Hidamari no Little Purple was bundled with the "Neptune Little Purple ver." 1/7-scale figure, which was released on July 3, 2022.^[36][37]

The anime television series adaptation received a mixed response, with praise for its original story and humor revolving around video game industry in-jokes, and criticism for its use of melodrama.^[38]

Music

Most of the original soundtracks created for the Neptunia series were composed by Kenji Kaneko, with additional composers for Megadimension Neptunia VII and later games.^[39] The first, titled Hyperdimension Neptunia Sound Track CD, was released on August 19, 2010, and was bundled with a Japanese Limited Edition of the game.^[40] The soundtrack for the second game contained 13 tracks and was released in Japan with the limited edition on August 18, 2011.^[41] It was later repackaged with the western limited release on February 28, 2012, which featured 18 tracks and was titled Hyperdimension Neptunia mk2: Sounds of Gamindustri.^[42] The soundtrack for Hyperdimension Neptunia Victory was released on August 30, 2012, with the Japanese Limited Edition and contained 16 tracks.^[43] Similar to the second game, the soundtrack was released overseas with the Limited Edition of the game with 24 tracks, titled Hyperdimension Neptunia Victory Sounds of that other Gamindustri.^[44] The Megadimension VII soundtrack, MEGADIMENSION NEPTUNIA VII Dream Edition DG-ROM, was included with the Japanese Dream Edition and released in a 50 track, 3 disc format on April 23, 2015.^[45] Its overseas release, MEGADIMENSION NEPTUNIA Official Soundtrack was included exclusively with the Limited Edition online, containing only 45 tracks over 2 discs.^[46] The soundtrack for 4 Goddesses Online was released on February 9, 2017 with the Royal Edition of the game.^[47]

For each title in the Re;Birth series, the soundtracks were re-released following each game's initial release, usually with a few additional or missing tracks. Re;Birth 2's soundtrack, titled Hyperdimension Neptunia Re;Birth2: SISTERS GENERATION ~ "Sisters' Melodies" Soundtrack CD was released exclusively on Idea Factory International's website with the Limited Edition of the game and contained 19 tracks from the game.^[48] Compile Heart and Idea Factory International later made the Re;Birth series available for the PC on the Steam platform, in which DLC included digital releases of the soundtrack for each game.

In addition to the game soundtracks, there have been CD single releases for the opening and ending themes for each game. The voice actresses for each character have also released individual singles, in which they perform original in-character songs. Various Drama CD series have also been released in which voice actors perform original episodes.^[49] The anime series also released singles for the opening and ending themes, alongside a drama CD and 7 special "Animation Processor" discs, which contained a variety of different audio media including songs, voice actor commentary, and drama episodes.

A compilation of the main vocal tracks from each game (including character songs) was released as a 5 disc series on August 27, 2014.^[50]

Mobile applications

Alarm clock applications and mobile skins/themes featuring Neptunia characters have also been released for Android and iOS.