Shinseiki Evangelion: Koutetsu no Girlfriend is an adventure game inspired by the acclaimed anime series Neon Genesis Evangelion. This title is available on various platforms including Mac, and offers players a unique interactive experience set in the rich universe of the series. Players engage in storytelling elements and character interactions that reflect the themes and narratives of the anime, making it a compelling choice for fans and newcomers alike.

The game combines visual novel mechanics with adventure gameplay, allowing players to navigate through various scenarios and make choices that impact the story's progression. The sequel, Neon Genesis Evangelion: Girlfriend of Steel 2nd, continues to expand on the universe with new characters and plots, although it presents an unrelated storyline. Overall, this game serves as an intriguing entry point into the Neon Genesis Evangelion franchise.