it reminds me a bit of dawn of the dead or zombieland and the survivvors need better ai there are 5 people in a house and 100 zombies outside the house :P
sorry for so many comments
cant stop commenting :P
very much ideas :D maybe a minigame as a survivor or a day/night-cycle? or you shuould be able to put your town there or others too :D im just trying to help ;D