Super Neptunia RPG ( 勇者ネプテューヌ世界よ宇宙よ刮目せよ！！ アルティメットRPG宣言！！) is a 2018 side-scrolling role-playing video game in the Hyperdimension Neptunia series developed by Artisan Studios, with assistance from Idea Factory and Compile Heart.

It was published by Idea Factory for the PlayStation 4, Nintendo Switch, and Microsoft Windows via Steam.

In Super Neptunia RPG, the player travels a horizontal world of dungeons, cities, and more.

In cities, players can buy and sell items and weapons, accept and report quests, and enter different buildings.

Praise was given to its art direction and presentation, while performance and difficult platforming were cited as issues.