There was another SC expansion before Brood War came out. It was made by Aztech New Media, not Blizzard. According to wikipedia the reception was mostly negative as it didn't match the quality of the original game and lacked innovation and cinematics. There are 3 campaigns with 10 missions each. I just finished replaying the original Starcraft and I'm thinking about playing through this before moving to BW. Has anyone tried it? Is it worth playing?