About Papers, Please

The basic gameplay boils down to locating mismatching information (you're fined for each time there's at least one discrepancy and you let them through), following the rules (search all people matching certain detail), demanding more papers, and personal opinion (letting people through and being fined may be the right or better option on the long run). Each day you have a limited time to go through the people and their papers and you get paid for each person you let through, this pay is used to cover rent, food, heating, and other costs which are not all mandatory in the short run (you can voluntarily leave heating or food unpaid, for example).