I must have played through the DE Statue of Liberty demo a dozen times in anticipation of this game. If at first you dont notice, you will soon realize that there are so many different ways to complete any given objective or mission. The size of the levels alone are enough to give you a choice but then they add in hacking/lock-picking tools, silenced weapons/mods, personalized augmentation, pc interaction options. This is the type of game that game devs should look to for inspiration. An FPS with an RPG twist was a fresh new balance that really opened up this game. The Unreal engine was the perfect choice for the environmental detail and interaction required for a game of this magnitude. What you do in earlier missions can effect the game play in later missions. Words cannot describe the gameplay enough. You have to play it in your own way and find out for yourself. Everyone will play it differently and I still replay it and find new things to do. The graphics were great for its time but lacked any real environmental effects - eg. the whole game takes place at night or indoors. The sounds and soundtrack are suitable for the title. The voice acting was stellar and the thousands of lines of conspiracy theorist type dialog was entertaining and sometimes hilarious. ( try going back to somenone and keep talking to them to hear all of their lines of dialog ). This is one of my most valued games and a pinnacle of gaming effort. Do not pass on the chance to play this game or small grey aliens will shoot green fireballs at you . . . or men in black suits will terrorize you with large overpowered weaponry.