The Orange Box includes:

Half-Life 2: Episode Two -- the second installment in Valve’s episodic trilogy advances the award-winning story, leading the player to new locations outside of City 17.

Portal -- a pioneering type of single player action game that rewrites the rules for how players approach and manipulate their environment – much like how Half-Life 2’s Gravity Gun reinvented the way gamers interact with objects in the game.

Team Fortress 2 -- an all-new version of the legendary title that spawned team based multiplayer action games. The game’s daring new art style features the most advanced graphics of any Source-based game released to date.

plus the original Half-Life 2 and Half-Life 2: Episode One.

Similar games

Universe: Half-Life, Half-Life Counter Strike

Genre: Quake 4, F.E.A.R., Crysis

Prequel: Half-Life 2, Half-Life 2 Episode One

Sequel: -

Coming Soon: Half-life 2 Episode Three