Dishonored isn’t a pop-in pop-out kind of experience according to developer Arkane Studios, you’ll spend at the least 22 hours in Dunwall.
That’s according to a post made by level designer Dan Todd in Bethesda’s official forums. He said the game will take a minimum of 22 hours.
My ghost and no kills play through took 22 hours. That’s without exploring every nook and cranny, and knowing the solution to everything beforehand. It should take more thorough/inexperienced players a bit longer than that.
I’ll conclude since it took one of Dishonored’s developers, who didn’t explore the full game in this particular playthrough, 22hrs to complete, I’m guessing about 25hrs overall?
That’s a darn good length if you ask me.
The game recently went gold, and will be released on PlayStation 3 and Xbox 360 in North America , and France on October 9th, 2012, in Australia and Spain on October 11th, 2012, and throughout Europe on October 12, 2012.

Games Thirst – Video Game News, Reviews, Trailers, Wikis And The Official Gamer Drink
