Valve Orange Box Review

The Orange Box contains 5 games:

Half-Life 2
Half-Life 2: Episode 1
Half-Life 2: Episode 3
Portal
Team Fortress 2

The Half-Life 2 games provide an engrossing sci-fi story through the eyes of the scientest, Gordan Freeman as he traverses landscapes, helping resistance groups fending off the alien Combine forces.
Portal is the mind-bending puzzle game that caught the world by surprise. Armed with your intelligence and a portal gun, you try to escape a huge lab to the outside world. Extremely loved and praised by gamers everywhere, everyone is singing the homicidal AI's song.
Finally, Team Fortress 2 is an online multiplayer unlike the typical realistic shooters today. This balanced game hails from a "Pixar-esque" art style while still maintaining its quirky personality.

 For games using an old graphics engine, these games still look impressive to this day. This means the Source graphics engine was ahead of its time.