The "Neptunia Series" is a popular franchise of role-playing video games developed by Compile Heart and published by Idea Factory. The series is set in a fictional world called Gamindustri, where personified game consoles and companies, known as CPU Goddesses, battle against various threats. The games often feature a mix of humor, parody, and references to the gaming industry. The gameplay typically involves turn-based combat, character customization, and exploration. Players can interact with a variety of characters, each representing different gaming platforms, such as PlayStation, Xbox, and Nintendo. The series has expanded to include spin-offs, anime adaptations, and merchandise, gaining a dedicated fanbase over the years.