Dishonored Campaign Can Be Completed In 14 Hours

Players who “eavesdrop”, though, will have their campaign length doubled. Co-creative directors, Harvey Smith and Raphael Colantonio, said in a recent Dishonored Q&A on the Bethesda Blog:

“Play-style matters a lot. Very direct players will probably get through the game in 12 or 14 hours. Explorers who eavesdrop a lot will take twice as long.”