Steam has lengthened the Portal demo.

Get it here

I downloaded it last night and although it ran a bit slow due to my POS video card, it's definitely worth checking out.

The object of the game is basically to solve the puzzle found in each level using portals. It's quite fun and while the first levels are easy, as you progress it gets a bit more challenging.

Also, if your PC sucks and would like to get the full version of the game get The Orange Box for the Xbox 360 as it's included there.

Getting Orange box, as soon as I can, can't wait for it. Portal looks awesome!

I played the 11 free levels of portal, was quite good fun if not a bit easy, how many levels are in the full game and are the 11 levels i played in the full game?

Been thinking about buying orange box and seems realy good value for money, but i think i will buy it on the pc for like half the price of the console versions and i can use mouse and keyboard hehehe

Well the advantage of the PC version is that you can download new levels.

As for the full game, I believe it has 19 rooms and a final stage. Then after beating it you unlock some other game modes. I plan to get the Orange Box for the 360 eventually..

I love portal..I seriously need that orange box for my pc. The cake is a Lie! but the Cube is forever!