A Certain Scientific Railgun: Spectrum Story has been released, available in Japanese Apple App Store and Google Play Store since 27 March 2020. For the unaware, the game is basically like a dating sim, specifically putting you in contact with Misaka Mikoto, one of the few level 5 Espers in Academy City. Chat with the girl, with dialogue options that can raise or lower friendship values with her. You will be able to see Mikoto in a variety of outfits also seen in the anime. There is paid content within the app itself.
Raise the friendship value enough, and more dialogue options will be available, as well as Mikoto herself texting you, to start. It seems it is also possible for her to make a wake-up call at a designated time, which sounds like a dream to fans of the character.
While the primary draw would be to communicate with Mikoto, other characters from the Railgun series will also be appearing. Collect the various CGs as you converse with the cast!
Mikoto is rendered in full 3D, with expressions and conversation changing according to both the current topic at hand and the time. She’s also fully voiced by her VA, Rina Sato, with dialogue exclusive to the game for you to enjoy. If you’re a fan, then just get the app and hang out with Mikoto in A Certain Scientific Railgun: Spectrum Story.