Episode Two advances the 16-million unit selling franchise, as Valve's trilogy of episodic single player releases continues the award-winning story of Half-Life 2. Armed with new weaponry and vehicles, Dr. Gordon Freeman must race through a countryside riddled with an increasingly fierce Combine threat.

Team Fortress 2, an all-new version of the title that spawned team based multiplayer action games, features the most advanced graphics of any Source-based game released to date. Players choose from a range of unique character classes such as medic, spy, sniper, or engineer and must work together to complete a variety of tactical objectives.

Portal is a new type of single player game that changes how players approach, manipulate, and surmise the possibilities in a given environment in a manner similar to how the Gravity Gun changed our approach to how an object may be leveraged in any given situation.

Team Fortress 2 and Portal will be included with all retail and Steam versions of Episode Two for the PC. In addition, these products plus Half-Life 2 and Episode One will be available in one tremendous offering for the PC, Xbox 360 and PlayStation 3. New videos from Episode Two, Portal, and Team Fortress 2 will be released next week.