Dishonored wouldn’t exist without failed Thief 4, Blade Runner pitches
via polygon.com
Short excerpt below. Read at the original source.
Former Arkane Studios developers and Dishonoredco-directors Raphael Colantonio and Harvey Smith played through the opening of the beloved stealth game on YouTube. That video revealed many details about the development of Dishonored, including that it was the direct result of pitches for Thief 4 and a Blade Runner game that did not come to fruition.