The pace of This War of Mine is imposed by the day and night cycle. During the day snipers outside stop you from leaving your refuge, so you need to focus on maintaining your hideout: crafting, trading and taking care of your survivors. At night, take one of your civilians on a mission to scavenge through a set of unique locations for items that will help you stay alive.
Make life-and-death decisions driven by your conscience. Try to protect everybody from your shelter or sacrifice some of them for longer-term survival. During war, there are no good or bad decisions; there is only survival. The sooner you realize that, the better.
Get it on Google Play : https://play.google.com/store/apps/details?id=com.elevenbitstudios.twommobile