Critics' Score:
Metacritic: 88/100
Game Informer: 8.5/10
EDGE: 9/10
Gamespot: 9/10
IGN: 8/10
This game is unique, and to spare you from my unfruitful attempt at describing it, I will leave some pictures as testament of its beauty:

At the beginning of Kentucky Route Zero, one might believe to be before one of too many attempts at trying to imitate a movie by David Lynch, whose style and movies are so unique, that in cinema -and art- his name can be used as an adjective: "lynchian". However, in a surprising way, this game quickly evolves into its own thing, and it turns out to have one of the most thought out stories I have ever seen in the medium. It even elevated its genre, the point-and-click narrative adventure, into its own territory as well. Visually, as the pictures prove, is quite unique, in the sense that I cannot think of any game done with such style; I imagine that this style won't be everyone's cup of tea, but to dismiss it or categorize it as an average game, would be a mistake.
Sure, the game has its flaws, being structured between 5 acts and 5 interludes; the acts offer the most linear and formal point-and-click experience, and I found them to be the parts where this game's fluctuates the most, between boring and intriguing, between bad and good. However, if you were to play the game and decided to skip the "interludes", you'll be doing yourself a disservice, for two reasons: one, they are vital to getting a deeper meaning into the strange happenings of the main story; and two, they are where the game is at its best, at its most experimental and simply where all the juice is.

For this game's writers have gone deeper than what, usually game writers dare to go. In a way that it's very "lynchian" this game might be understood better at a second playthough, once you are more acquainted with the story, so you can go and look into the finer details. The reason that I've arrived to such conclusions, is by looking at this game influences: cinematic from Lynch to Citizen Kane; but what's even more surprising is how much of an influence theatre and its theorists have been: there are mentions of Maxim Gorky's social-realist masterpiece The Lower Depths and Antonin Artaud, creator of the "Theatre of Cruelty", is also mentioned or quoted several times.
This and the game's heavy metaphors, observation of the American working-class under its brutal Capitalism and just overall complex narrative, have left me with the impression that I have only scratched its surface. That being said, some of the Acts remain extremely weak, specially when the interludes offer a much more interesting and innovative design and after the 3rd Act, they become perhaps, the most interesting offerings this game has to deliver.
Score: 87/100