The 'Batman: Knightfall' story is about Bane breaking Batman. Bane released all the inmates from Arkham Asylum, which put Batman under great pressure as he tried to recapture them all. Eventually, Bane managed to defeat Batman in a brutal fight. It was a major turning point in the Batman comics, showing Batman's vulnerability.
Knightfall is not directly based on a true story. It weaves elements of history and legend into a fictional narrative for entertainment purposes. The creators have taken creative liberties to craft an engaging story for the audience.
It may drive away some of the original fan base. Fans who are interested in the pure, original story of 'Knightfall' may be turned off by the existence of sexual fanfics related to it. Also, it can create a negative perception among potential new fans. When they search for 'Knightfall' and come across such sexual fanfics, they might wrongly assume that the whole franchise is about sexual content, which is not the case for the original work. Moreover, it can also affect the way the media and critics view the franchise. They might be more likely to focus on the negative aspects related to the sexual fanfics rather than the positive aspects of the original 'Knightfall' content.
It's mainly about the fall of Batman. In 'knightfall', Batman faces a powerful and relentless foe. His enemies manage to break him both physically and mentally, leading to his replacement by other characters for a while. It shows the vulnerability of the Dark Knight and the complex web of his rogues' gallery.
Well, in the Arkham Origins Knightfall story, Batman is dealing with a lot. There are new threats popping up all over Gotham. The Black Mask, for example, is causing all kinds of trouble. He hires some of the deadliest assassins to take out Batman. This forces Batman to use his detective skills, his combat abilities, and his wits. He has to figure out the motives behind these attacks and stop the villains before Gotham descends into complete lawlessness. Also, it's a time when Batman is still learning about the city's underworld and how to best combat it.
I'm not sure exactly, but there are several volumes of Knightfall comics. You might need to check with a comic book store or online database for an accurate count.