Sleeping dogs is criminally overlooked. And imo, still one of the best action/openworld games out there.
The gameplay loop is great fun with excellent combat mixed with interactive enviroments. Those high speed/ocatane chases and excellent and humorous mini games/side missions. In a busy and busting streets of Hong Kong.. Kung-Fu'ing and taking down bad guys never felt so good. The story is great as is the progression system;where your actions have an effect on how you advance your skills() and unlocks.
Sadly, it flopped commercially.. only selling 1.5M copies world wide and was not enough for the game to be profiable. There was a sequel in development.. though that was cancelled shortly after, and IP remains under wraps at Square Enix.