"In This War Of Mine you do not play as an elite soldier, rather a group of civilians trying to survive in a besieged city; struggling with lack of food, medicine and constant danger from snipers and hostile scavengers. The game provides an experience of war seen from an entirely new angle."

IMO one of the better 'war games' precisely because of how heavy and forlorn the atmosphere is. Playing this won't necessarily make you happy, but it'll definitely make you appreciate the blessings in your life.