Solid Shooter that is hampered by unintuitive controls and lack of variation.
Ok lets get the first things out, as you probably know. Hatred is about mass murder. You play the role the villain; a mass shooter who has decided that he's had enough of his fellow humans, gets strapped, and goes on a killing spree. Cue typical outrage......yadda, yadda, yadda.( Like you cant do that in GTA *eye roll*)
Now that you've got that out of your system, its time to get down to it.
It's set in a fictional city, with an isometric style view, but with 3D models, think X-com, or any other tactical RTS or Turn-based shooter. However this is real time, no turn taking. The world is coloured in shades of gray, probably a homage to the content of the game, and only some things are coloured, lending to stylised visuals.
You have a cursor which represents where shots or grenades will land, controlled by the mouse, then you move the character with keyboard controls. This means you can run in completely separate directions to where you're aiming, giving it an actiony feel. Add to that being able to duck to take cover behind obstacles and being able to vault them, you have a nice fast paced action shooter.
Pedestrians are usually the target in that you have a certain body count to achieve and so run around killing people. This is where part of the game shines, in that you have nicely designed areas where houses and shops, even piers and roads exists, giving it a real city feel. You can run into houses, jump through windows, even get in cars and go for a drive. Sprinting through neighbourhoods with the cops on your tail feels strategic in that you can enter a home and use it for cover or to lure them into traps.
Yes after a period of time the police get wind of your actions and come in force to take you down. And at points even pedestrians take up arms against you.
Other than that it isn't as thought provoking as something like Super Columbine but it does put you in a strange place where you end up chasing down pedestrians to gain health as executing people is the only way to do it. Obviously the idea of the game is to disturb the player, which by most of the comments, it does well. And to be fair, it does take a very mature mind to accept the content for what it is, and understand the hypocrisy, which is one of the things it pushes, of killing in games. This is in the form of why is it fine to kill say some Russian, Afghan, Chinese, insert one of the generic "bad guys" you get in games, sneaking up on the dude and head-shot, but then civilians are not. The argument for both being that they are just games, not real life, or real in anyway.
Essentially if you play GTA and have enjoyed the game, but then remonstrate this game, you are a hypocrite. Any open sandbox game where you can run people over, really.