Tom's Hardware: "Stalker Clear Sky should probably be called Stalker v1.5. You don't have to know the precursor, Shadow of Chernobyl, to enjoy this one, though it would help if you've played it before. Inspired by the movie, the main character is a stalker (go figure) who fights his way through the contaminated areas around Chernobyl. The main objectives are pretty straightforward: fight, explore the environment, perform a handful of small tasks, and then fight some more.
The game is not approved for children, so it isn't censored (as it says on the German cover). The game runs well on a Core 2 Duo and Geforce 8800 GTS at 1920x1200 pixels if you turn off anti-aliasing and DX10 lighting effects. For maximum graphics quality at high-def resolutions, you will need a Radeon HD 4870 or GeForce GTX 280 graphics card; you can read in our performance comparison about how well the game does with the HD 3870, HD 4850, HD 4870, GeForce 8800 GTS 512, 9600 GT, 9800 GTX, GTX 260 and GTX 280. If you want to get the most out of your game."