Type-Moon has a visual novel game based on Fate/Zero scheduled to come out for iOS devices at the end of March. Fate/Zero The Adventure will let players change how the Holy Grail War turns out and determine the game’s ending. There are Servant battles and Saber will get stronger during Fate/Zero The Adventure. You can see her strength depending on which one of the five cards Saber cards you have.
Fate/Zero The Adventure follows the original story, which has some elements that were not in the anime adaptation. On top of that, the iOS game has a new scenario which will take fans deeper into the Fourth Holy Grail War. Ufotable also made new cut in graphics for the game.
Famitsu posted some screenshots of Fate/Zero The Adventure, which you can see here.