The other FF series 'Fighting Fantasy'. It's not actually a story it's a role play in which you get to make your own decisions as to which direction to head down what actions to make and risks to take. It has a Final Fantasy feel since there is an element of random battling with dice and special items to find. In some books of the series they've chucked in certain specialities that are not normal to other books so there is some variety in what you're getting