I once got mine up to 50 people. I was playing a normal map, and meta-gaming to see if I could fill the entire map with pig farms. My population steadily rose because of the abundance of food, and the bedrooms kept getting filled as I was carving them out of the rock. Eventually, the frequency of sieges meant that my town's happiness was sustained too low to get any more immigrants, and my people were wiped out. I did manage to severely lag the map scrolling with the amount of pigs I had in one section of the map
