Super Dimension Action Neptune U) is a hack and slash video game developed by Compile Heart and Tamsoft and published by Idea Factory International.

A world known as Gamindustri (ゲイムギョウ界, Geimugyō-kai, a pun on ゲーム業界 Gēmu gyōkai, "game industry") protected by the divine aegis of the four CPUs (Console Patron Units, the goddesses) and their sisters, the CPU candidates.

Even in this world the seeds of evil don't die out, and since brutal enemies along with ferocious monsters that appeared were quickly defeated by the collaboration between the CPUs and the CPU candidates, not only the goddesses themselves but also the inhabitants of Gamindustri ended up very bored.

Set during peacetime after the events of the recurring 'Console War' of the previous games (albeit in an alternate, non-canonical dimension) the CPUs (Console Patron Units) of the world of Gamindustri seek to raise awareness from non-CPU supporters and new nations by improving their public profile.

After undergoing training exercises to integrate their attacks, and completing further guild missions to improve their public standing, the girls challenge Next Gen Mech again and emerge victorious after breaking through its defenses by working together.