I don't think I've ever seen anything like The Orange Box before or since. For the price of a single game, on October 9 2007 Valve released a compilation that showcased the state of the first-person shooter's art. Portal was perfect execution of something entirely novel, but its brilliance almost overshadows the fact that it was also released alongside what might be the best Half-Life ever made, Episode 2, and one of the most enduring and influential multiplayer games ever made, Team Fortress 2. Each was completely different from the other, with its own visual and tonal theme.
This is a companion discussion topic for the original entry at https://waypoint.vice.com/en_us/article/vb7aa3/ten-years-later-the-orange-box-is-filled-with-valves-baggage