A game that can best be described as the mash-up of the moral grey zones and choice given in Deus Ex: Human Revolution and the punishing combat system from Demon's Souls/Dark Souls. The whole point of the game is to have violence as an option, but actively discourage it.
The setting is a protagonist that has been set up as the perpetrator for a crime, manages to escape his arrest and works on proving his innocence after that. He's a martial arts champion and is therefore capable of engaging in hand-to-hand-combat with most adversaries(and the setting is in a country where the police doesn't carry guns. Yes, those countries exist, I live in one). However, the combat is attempted to be "realistic", meaning that getting punched fucking hurts and anyone can get knocked out in 2-3 good hits(including you), and multiple enemies will be damn hard to deal with. Stealth and avoidance is therefore the preferred option. You can also try to use weapons(knives, baseball bats, etc), but considering that you're actually trying to clear your name for a crime, killing someone with a weapon even once will give and ending where you get arrested even if you do manage to clear your name. The game obviously doesn't tell this directly, which is part of the point: you manage to do everything right and still get a bad ending because you followed regular video game logic.
Oh, and police officers that are unaware of your position will talk about regular everyday stuff(movies, cars, their sons playing football, etc), just to further the point that attacking these people would result in hurting actual human beings.