Dishonored: Game of the Year Edition is 75% off on GreenManGaming. You can use the voucher code Z4364W-7MR5WA-N5BCOO to get an additional 20% off the discounted price and get it for $6
http://www.greenmangaming.com/s/us/en/pc/games/action/dishonored-game-year-edition-na/
http://www.greenmangaming.com/s/us/en/pc/games/action/dishonored-game-year-edition-na/