I'm having trouble competing with the AI in expanding my empire and finding habitable planets. I'm trying playing on the huge map with 4 alein races and I keep ending up being right next to another race that eats up all the nearby habitable planets before I can even get my empire going. Is there too many races on the map? I don't want to increase the # of habitable planets because I don't want there to be too much micromanagement. Should I start a game on a big map with like only 2 races?