This is the sequel to "Fire Emblem: Path of Radiance", and a great extension to the story. I have to say this branch of the series is my favorite to be released in the states so far. For those new to the series, the games play fairly similarly to chess - you move all your soldiers, then the enemies move, then it's your turn again. This particular story arc revolves around a continent of humans and demi-humans (called Laguz) who must pick sides in the impending war.
There's a few mild curse words - 'd**n', perhaps the term 'c*r', but it's all used fairly decently. It's violent but seen at a distance and there's no blood or gore - if someone dies they simply drop to their knees and disappear. It's probably okay for kids a little younger, but I'm going to say it's best for 10+ just because of the general content: for example my little brother probably wouldn't play it because there's too much reading and he has to take turns (god forbid) as opposed to free-form fighting. If you can get a little one to enjoy it, however, power to you - the tactical approach will keep anyone's mind at a good pace.