The offer might be a problem for most HL2 fans, which already have purchased both the original game and the first episode. In such cases, Valve decided that buyers can "gift" the games to a friend from within Steam
Next on the Orange Box list is Team Fortress 2, a multiplayer team-based warfare simulation game and Portal, a mixture of puzzles, first person action, and adventure.
The Orange Box can be downloaded from Valve’s Steam service or purchased from retailers. Its price tag reads a $49.95 for the PC version and $59.95 for the Xbox 360 one.