While I'd be skeptical that it would be any good, I'm surprised this was never cashed in on. Theres a game of almost every super hero movie pumped out along with the film. If it had been done in the style of Arkham Asylum (which with a few changes to the story could have easily been a TDK sequel) it could have been awesome. Again, I know it most likely would have been "meh" at best (just like the Batman Begins game), but I know that surely WASN'T the reason it didnt get made... thoughts?
edit: I guess one was in the works but scrapped for reasons unknown: http://en.wikipedia.org/wiki/The_Dark_Knight_(video_game)
edit: I guess one was in the works but scrapped for reasons unknown: http://en.wikipedia.org/wiki/The_Dark_Knight_(video_game)