My favorite game at the moment is Papers, Please. It's and indy game set in a dystopian world in the 80s:
The communist state of Arstotzka has ended a 6-year war with neighboring Kolechia and reclaimed its rightful half of the border town, Grestin.
The atmosphere is just great as in well done. A split town after a war (East & West Greting), a another split town elsewhere (Glorian & True Glorian). Dark graphics, work to pay heat & food, denying people from other countries access, terrorism. And your job is to control, inspect, protect the regime. The rules change daily, to add pressure a timer is running and you get paid only for processed people. I love games set in such a gloomy environment, sadly it's still in beta but it looks very promising, would gladly pay for the full game.