Difficulty: Medium
City 17 is a run-down urban center that's the equivalent of the Warsaw ghettos during World War II, but instead of Jews being rounded up to live in City 17, it's all the remnants of a defeated humanity. Half-Life 2 takes place an untold number of years after the Black Mesa incident, but it's clear that much has changed. A mysterious enemy known as the Combine has conquered the planet and installed a human puppet government to carry out its rule. Black-clad security forces patrol the streets, while propaganda blares endlessly from omnipresent video screens. If there's one thing that Valve does extremely well, it's capture a sense of atmosphere--this vision of a dystopian police state is chillingly effective. But you won't spend a lot of time soaking in the scene before you're thrust into the struggle to defeat the Combine and free humanity.
As soon as the shooting begins you'll join an essentially nonstop battle that will last the remainder of the game. Like the original Half-Life, Half-Life 2 is presented as a nearly seamless experience--you play entirely from Gordon Freeman's perspective, there are no cutscenes or perspective changes to take you out of the moment, and are there no narrative jumps that skip ahead in time. (At least, there are none from your perspective.) There also aren't very many long loading times to interrupt the flow of the game, as all the levels are discreetly broken into sections, and when you transition from one section to another, there's only a slight pause for the new section to load (at least, on a high-end PC). Put it all together and the game's single-player campaign, which will probably take you between 15 and 20 hours to complete, comes off as a very long day in the extraordinary life of Gordon Freeman.
The original Half-Life was highly cinematic in nature, the virtual equivalent of starring in your own blockbuster sci-fi action movie. Who could ever forget the first time a headcrab leapt out at you from a dark corner? Or the moment when the commando tossed a satchel charge into the sewer pipe you were hiding in? The movie analogy is apt, not only because Half-Life 2 packs a few cinematic moments of its own, but also because, like most movie sequels, it plays it safe and doesn't deviate much from its storied predecessor. Half-Life 2 doesn't revolutionize the genre, instead sticking with the familiar formula of run-and-gun action, occasional puzzle-solving, and scripted sequences established by Half-Life. And it's an effective formula, for the most part. The game gets off to a rousing start, as the opening levels combine these three ingredients masterfully. You start off on the lam from the Combine, armed with only a pistol and your wits, and embark on a chase through a train yard and tunnel system that's filled with all sorts of hairbreadth escapes. The sense of pursuit hurtles you forward so quickly that you don't have much time to admire the cutting-edge graphical prowess on display.