Codename CURE II delivers a gameplay experience reminiscent of Left 4 Dead, but with modern visuals and technology – and it's completely free to play. So far, the game has been well received on Steam.

In October 2009, a few weeks before Left 4 Dead 2 shipped, a cinematic trailer for the game turned up online with nobody's name attached. Kotaku covered it on October 22 under the headline "Leaked ...

Former Valve writer Chet Faliszek has a confession to make: Valve intentionally leaked its own Left 4 Dead 2 trailer. The Half-Life and Portal veteran spilled the beans on the studio's past ...

Valve changed the game in multiple ways, but let's not forget about the games they released. Here are Valve's five best video ...