Nachtrag, aus einem alten Poygon Artikel
According to Sochan, the original game with the PC version's high-resolution texture pack served as the starting point for the Definitive Edition. From there, United Front spent a year tweaking the way Sleeping Dogs looks and plays.
"It's a lot more than just jacking up textures and turning up knobs and dials," said Sochan.
The Definitive Edition runs in 1080p at 30 frames per second on both PlayStation 4 and Xbox One. Graphical improvements that Sochan listed include new fog, mist and smog effects; "completely redone" lighting that lends the game a higher-contrast look; secondary animations for objects on bodies, like a chain hanging from a person's neck; additional frames of animation, for smoother movement; hand-modeled upgrades to characters; extra neon signs throughout Hong Kong; and animated lighting for those signs. Sochan pointed out that the sign lighting is something that really sets apart the Definitive Edition: Not even the original PC version had animated neon signs.
United Front also made some gameplay changes for the Definitive Edition. Sochan said the studio was able to crank up the amount of pedestrians by 200 percent, but because the game wasn't fun to play at that point, the developers ended up with a more modest increase in population density. Other changes were based on telemetry data and player feedback from the original game. United Front was able to see where players were getting stuck and frustrated, and in response, the studio tweaked vehicle handling, increased the timing window for counterattacks and smoothed out some difficulty spikes."