Half-Life 2 review. Classic Game Room presents a CGR Undertow review of Half- Life 2 for PC, developed and published by Valve. Half-Life 2 is widely thought to be one of the greatest video games ever made, and for good reason. It stands as a technically sound and fun masterpiece nearly ten years after its release. This video review features gameplay footage of Half-Life 2 for PC and audio commentary from Classic Game Room's Tristan.