from Half-Life 2: Episode 3, to spin-offs that never reached development. Thanks to some new concept art, we at least know what they could have looked like. 2K developer and Half-Life fan David ...

50 high-resolution pieces of concept art for canceled Half-Life games alongside material for Counter-Strike, Left 4 Dead, and more have been released online. The Valve artwork circulated after a ...

Half-Life 2: Episode 3 concept art has supposedly been leaked. A gallery posted by Valve Time claims to contain concept images from the anticipated sequel. Though the images were sent in by an ...