This piece of software has been taking 80% of my gaming time since 2005. Addictive? Yes, indeed. It happens more or less in this way: you beat some levels at normal, then go up and up to Expert. Then you discover that you are facing the first A.I. in the world where "I" means "Intelligence" and not "Incredible dumbness". Then you get kicked real hard. And again. And one more time, even harder. You want revenge, so time for new tactics: retreat on a green star, attack from there and swamp the enemy. Not enough, need more ships earlier. Then balance for a while, capture some ships in a blue-purple binary system, then go. Finally: victory. But this was playing with greens, what would have happened with reds? Not to mention the random galaxies: with some of them you really can't win... maybe.
Oh, right, this jewel works perfectly fine on computers three generations old: another demonstration that advanced graphics is mostly a way to disguise the absolute lack of good ideas.