The theme from Papers Please is a fairly simple theme. But, it does lend itself to the type of oppressive environment that you’re in. You’re playing as a character at a border crossing checking everyone’s passports who want to enter Arstozka. Every passport you check gives you money to survive. So, you have to be quick, to get more money. But, don’t be too quick to accidentally let someone into the country that shouldn’t be.
Glory to Arstotzka!