Great game I think, the graphics were awesome, no surprise there, but I also love the suit mechanics and the gameplay. In this regard I think Crysis takes the cake over Half Life 2. I'm a little disappointed in the weapons though. Most of the guns are pretty much alike, and even though I feel like I'm shooting guys right in the head they take like a million shots to kill. And before they actually die, npcs don't even seem to notice I'm emptying my clip in them.
So I loved the early part of the game and the guerilla warfare, but I also really liked the latter part, with the aliens. If you haven't played the game, consider yourself spoiler-warned as of now, though there's really not much to tell.
I mean, there are aliens, waking up and starting shit, not terribly original. But if not in story, Crysis totally delivers in scenery and atmosphere. I thought the insides of the mothership were fucking awesome, and during the final battle on the carrier I came nerdbuckets, it was so beautiful. At first I was just mesmerized by the pretty smoke and the fact that I was fighting aliens on the flight deck of an aircraft carrier, but then I looked past the thing I was shooting at and I noticed the entire sky was swarming with the damn things and aaaaawsum! And then I got to kill a huge thing and then I got to kill something even bigger. That's all I really ask for in an fps.
Definitely high scores on atmosphere. If you haven't played it, I recommend it. Up until now I had gotten the impression that it was just a looker, but it really isn't, it was a pretty great game, and I am definitely getting the sequel.
Though hopefully it skips right past going back to the island at the end, because I thought that was fucking retarded.