The mapping seems well done. Otherwise, this could go either way. In the story explanation, I'm not sure exactly what it is, but it just seems unappealing to me. It seems as if you gloss over a lot of things. A lot of things also go unexplained. Why did the legendaries attack? Who is the One Judge? How did he (her?) and their disciples manage to defeat the legends? Why did they go mad?
Regardless, this shows potential. It will really depend on how much and how well you explain these things. How well you break away from cliches, as this seems to have its fair share of. (Then again, what isn't cliche in one way or another?) I will say, the bishops seem interesting, and I will await to see how you handle them.
Know this, I mean no attack towards you. I'm merely saying you will have to work hard to make this work. Also, you'll need to find some way (which I hope you already have planned) to make relevance of the title. I don't know if it's just me, but I really hate it when the title has nothing to do with the hack. So will hacking be a major part of the game? Will there be say, heavily computer based cities, or legions of machines that need to be hacked or something? Or perhaps you'll incorporate the word "hack" in a different sense?