Haven't played this in some time because I've had family staying at my house for a couple of weeks, but...
Sleeping Dogs
I haven't gotten too far into this so these are my initial impressions. I really love the environment and the cultural background of this, it really feels like I'm playing a character in a Hong-Kong police movie. Everything from the signs on the shops to the temples and landmarks present to the music on the radio has this very modern Asian aesthetic that you can tell the creators painstakingly put together. The voice acting is also pretty good and has some interesting and memorable characters.
The story(as far as I've been playing it) is about an undercover cop named Wei Shen who is sent to infiltrate the Triads and take down a number of their upper men, as well as his own personal goal of avenging his sister, who fell in with the gang and died of an overdose. They do a pretty good job of balancing what you do as a cop versus what you do for the Triads to earn their favor and rise in the ranks, and there's missions to do some surveillance on drug runners and collect evidence in order to take them down.
The fighting mechanics are similar to fighting groups of guys like in Assassin's Creed minus the more acrobatic stuff, sort of like an actual street fight. There's also this mechanic to grab an enemy and take them down using the environment that's cool too. It isn't perfect, especially if you mess up a combo and have to wait for the character animation to come back to its starting position, but when you land that crucial blow or pull off a sick combo it's immensely satisfying.