This game is pretty fun, My only problem is the glitches, but other than that it is a great game. It seems as if it should be a console game, kind of like an assassins creed game. The only problem I see with it is the violence. You can decapitate enemies, and use brutal counter-attacks, it is once again a assassins creed type game. It does have strong violence, but other than that there is no other concern, but if you don't want your kids seeing any violence at all then don't let them play this. 11 and up.
If this were rated as movies are rated it would be R: Strong Bloody Violence.