| This is early gameplay footage of Valve's recently released, Portal. It is available now through Steam and also sold in retail stores in the Orange Box. An exclusive demo version, entitled Portal: First Slice, is available for any Steam user using NVidia graphics hardware. It comes packaged with Half-Life 2: Deathmatch, Peggle Extreme, and Half-Life 2: Lost Coast. The demo includes the first four chapters, in which the portal gun is only capable of firing blue portals. |
