Dishonored

Your Empress has been killed, her daughter abducted, and you were framed for it. This cannot stand.
Step into the shoes of Corvo Attano, a man who crawled his way from rags to being the protector of the Crown of a steampunk city of Dunwall through skill at arms and cleverness. Dishonored is a goal-oriented action-adventure sandbox, providing the players with tools and letting them freely experiment to complete missions in the most efficient or the most creative ways you could imagine.
Just be careful, your actions have impact on the city and its future. Will you carve a bloody future, or create a solid and just foundation for the Empress’ heir’s rule?