Half-Life 2: Episode Two will be the second game in a series of expansion episodes for the game Half-Life 2 from Valve Corporation. On May 24, 2006, after Half-Life 2: Episode One had gone gold, Valve announced that Episode Two would be released in time for the holiday season of Quarter 4 2006. Doug Lombardi of Valve confirmed this schedule with PC Gamer in August 2006. However, mid-January Lombardi had confirmed with Game Informer Magazine that Episode Two has been further delayed into the 3rd quarter of 2007.
The first two episodes have been developed concurrently by separate teams. Episode Two's focus appears to be on travel and vehicles, and it will see Gordon Freeman and the series' other major characters moving away from both the ruins of City 17 and the entire area in which it is located and into large outdoor forest environments.
A teaser trailer for Episode Two is included in Episode One and is unlocked upon completion of the game. It can also be accessed directly from the game files. The teaser has since been made available though other outlets, including as a free media download via Valve's own Steam. A technologically updated and extended version of the first trailer for Episode Two was released on July 21, 2006. Another trailer showcasing a part of the story of Episode Two was released on August 24, 2006. The game is said to be released in 2 packages, one being for PC, Xbox 360 and PS3 named "Orange Box" which contains Half-Life 2, Episodes 1 and 2, Portal and Team Fortress 2 and another called "Black Box" , which is only for PC that contains Episode 2, Portal and Team Fortress 2