Shinseiki Evangelion: Kōtetsu no Girlfriend 2nd (新世紀エヴァンゲリオン鋼鉄のガールフレンド 2nd), translated as either "Neon Genesis Evangelion: the Iron Maiden 2nd" or "Neon Genesis Evangelion: Girlfriend of Steel 2nd", is a Gainax-produced visual novel video game that was released for Mac OS, Mac OS X, Microsoft Windows, PlayStation 2 and PlayStation Portable.
While, as the name implies, it is a follow-up to "Shinseiki Evangelion: Kōtetsu no Girlfriend", it has an unrelated plot and does not feature the original character Mana Kirishima that appeared in the previous entry. The story of this game is set in the alternate universe seen in Episode 26 of the show; where the player controls Shinji Ikari as he navigates his home, school, and social life in a now-peaceful Tokyo-3.
Source: Evangelion.Fandom, "Shinseiki Evangelion: Kōtetsu no Girlfriend 2nd", available under the CC-BY-SA License.