The original Freespace is obviously a great game. But I think the sequel really developed the storyline into a much more epic, cinematic tale, and whenever I think about how great the series, I'm always thinking about the Knossos portal and the destruction of Capella. So many questions...it's all so fascinating. With the original, I didn't really feel there were any questions about the storyline. The Shivans were big bad super death aliens, end of. But the sequal really made me question what their motives were, and the actual size of their entire fleet. I find the Shivans to be an utterly fascinating race, and that's all from Freespace 2.