During the summer steam sale, I looked into many indie title games available on Steam and are on sale. Papers, Please happens to be one of them.
Like many indie games, the gameplay is very unique. You are the inspector of a fictional country called Arstotzka, guarding one of the entrances of the East border of the country. A war against a neighbouring country has just ended but the peace is still very fragile. Your job is to inspect everyone who wants to enter the East border of the country. The means of inspection is by examining their personal related documents such as passports and ID cards, hence the title, Papers, Please.