Dishonored:

Dishonored has quite a lot to offer. Two characters for perspective, a sense of learning the rules of that world and the Empire; many different approaches to the problem at hand and even a likeness to some of the unique supporting characters. You can see what fits the fate of those characters depending on your approach. It is more work to save a character, but you learn so much more about the world, Emily or Corvo and the people they have to take care of.