This fantastic shooter was brought to you from former members of People Can Fly and CD Projekt RED. If that's not reason enough to buy this on impulse, let me give you a few more. Firstly, you can destroy everything. I don't mean GeoMod, terrain destruction like in Red Faction. But you can blow up pretty much anything short of buildings, like neon signs and cars and air conditioning window units. Sometimes this results in revealing a secret, sometimes not, but it's lots of fun, innit?
Next, there are LOTS of enemies swarming you. Some might say this is repetitive. Some others might say that being swarmed while running low on ammo and health (which may have been completely full at the beginning of the swarm) is something of an adrenaline rush. No stockpiling for you!
Next, the bosses. They're huge. They're armed to their cybernetic teeth. They're out to get YOU. And more often than not they're pretty nifty-looking.
Lastly, there's the credit system. You earn money for fragging robots. You get to spend said money on upgrades for your health and weapons. You technically only have two guns (one 'kinetic' and the other 'energy', to fight armoured and unarmoured opponents, respectively), but with the upgrade system you can add functionality to each. For example, you can buy a shotgun-type burst fire mode to your kinetic weapon, or homing functionality to your energy weapon. In this way you end up with the sort of archetypal shotgun and rocket weapons seen in almost every FPS to date (except the fantasy/medieval ones). Some are mutually exclusive (I think, I might be wrong), and some are so expensive you'll have to 'specialize' in one area to buy them (as in, some upgrades require you buy other upgrades first). You probably won't be able to get all of them in one playthrough, so there's your incentive to play again.
So buy Hard Reset today!, and show those console fanboys that PC gaming is very much alive.