I've finished the game got all the houses formed a new constitution and in the end game situation im at day 306 and i still get more survivors and random attacks rofl. There aren't even any airports or streets anymore ^_^
To earn happiness, replace houses into farms and build a church from a medical center and then throw a party. I did it and i successfully beat the game. Looking toward to get more areas to get.
In my opinion this is the best story line free browser game in this timeline! The creators of this game were genius! I hope they make a sequel and add multiplayer servers or their own site. 10/10 all the way!