First off the game looks impressive, with New York backdrops and an excellent game engine. You are an unknown marine referred to as 'Alcatraz' that wears a revolutionary suit, that is basically an evolving bio-weapon. This suit allows you to either cloak (go invisible) or to activate an armour shield. This uses a power source bar and aids your fighting skills in what is a tough FPS combat game.
The combat includes stealth kills, tactical scans with your visor, upgrading your suits powers and several weapons and options. The game uses all of the pads buttons and so becomes confusing and over complicate at times, by arguably more rewarding over time. You can also run, slide and use numerous grenades.
The game's main boast is it's graphics. It looks superb, with many great New York in devastation backdrops, amidst an Alien Takeover. There are some great scenes capturing the infection, isolation and chaos as the huge alien robots and giant 'squid' eat up, destroy and overtake the Big Apple (New York). There are some great effects here, with rain, explosions, army vehicles and the alien robots themselves.
The levels feature areas of New York which include Wall Street, Battery Park, Bryant Park, Central Park and Station, and Times Square.
The Alien Hive is present throughout with crash sites being explored and fought off by the US Army Marines and the Crysis Cell, which are like super special, secret army like underground research teams.
The single player campaign is quite long and repetitive, being challenging and tough, but the excellent story, cut-scenes and epic feel pull you through. Yes it is another FPS but it does boast some great visuals, level designs and a feeling of accomplishment. Players can collect dog tags, emails, souvenirs and vehicle keys.
Overall a competent shooter worth a try.