In 2014 Ubisoft shipped a game with its best graphics sitting on the disc, switched off. A modder turned them back on by changing zeros to ones in a config file. The settings were labeled "E3." Watch Dogs was the star of E3 2012. Rain-soaked Chicago, headlights throwing shadows, crowds thick enough to vanish into. Two years of trailers ran on that footage. Then the game came out in May 2014 and looked like a different product. A Ubisoft PR rep insisted there was no downgrade. Three weeks…