Hyperdimension Neptunia (超次元ゲイム ネプテューヌ /Chōjigen Geimu Neputyūnu) is a video game series of role-playing games created and developed by Idea Factory. The series debuted in Japan on August 19, 2010 with the video game of the same name exclusively for the PlayStation 3, later re-released as an enhanced remake under the name Hyperdimension Neptunia Re;Birth 1 for the PlayStation Vita. Two sequels, Hyperdimension Neptunia Mk2 and Hyperdimension Neptunia Victory, in addition to the remake titles for both of them and three spin-offs on the PlayStation Vita, have also been released. Another sequel on the PlayStation 4, titled Megadimension Neptunia VII, was released in 2015. It has also branched off into a manga, light novel and anime media franchise series.
A television anime series adaptation, titled Hyperdimension Neptunia: The Animation, began airing in July 2013 (English version began airing in 2015).