[dodgyant]

This is the much appraised game from the Valve. This is the same people who do Counter Strike.

The engine on this game is just magnificent, Valve have really pulled all the stops and gone through the most minute of details to make our gaming experience as pleasurable as possible. There is a weapon called the "Gravity Gun" which allows you to pick up random objects on the floor. The game is so details, even bits of rubbish can be picked up.

This is a must-buy if you do not already have it!

[Jade]

This game is one of my favorites also, I have so many favorites!
I like this game for it's specific detail I don't think I have played a game like it!

[CG Man]

If you like Halflife 2 check out Bioshock it's similar type of thing but with much better graphics and more acurate physics simulation. Have you seen the addon storys you can download?
In a couple of moths their is another counterstrike type addon from Valve called teamfortress 2 it lookes the same style as the film Incredibles.