Originally Posted by Toa Tahu
So I started a new easy game, and, at the same point of time as my former medium game, I had conquered 100% of the known galaxy (the planets you could travel to).
That's the way to do it. And once you've played through the campaign on easy, try games on medium, then hard, then start handicapping yourself manually. For instance, beat down a tech-5 enemy on "hard" with only Acclamators and infantry - THAT'S a fun challenge.