

Similarly, the Boomer explodes rather violently when he dies, showering everything nearby in zombie-attracting bile. However, if he gets close enough to vomit on you, the putrid substance will attract every zombie for hundreds of feet to go out of their way to attack you. The Boomer, for example, is slow, fragile, easy to hit, and has a very weak attack. The special zombies are mostly there to keep the team on their toes, force them to stick together, and provide different challenges to overcome. And if you have teamwork issues, heaven help you the first time you have to take down one of the special zombies like the Smoker or, worse, the Tank. Your run-of-the-mill zombies go down fairly easily, but if you don’t coordinate with your teammates even a small horde can present serious problems. The big emphasis in this game is on teamwork.

Gameplay is essentially what you’d expect from a shooter – standard controls, a few weapons, and lots of targets to spend your ammo on. Also, at the end of each chapter, there is a “finale” level, where the survivors have to bunker down in a location and defend it from hordes of infected until their rescue arrives. Thanks to this, the otherwise linear levels feel very dynamic, and it ensures that you’ll never have the same experience twice. An AI program dubbed the Director controls the zombies – where they spawn, how they react, where to spawn special zombies such as the Boomer or Smoker, and when to just throw zombies at the survivors from every direction. However, thanks to new advances in AI, the levels never play through the same way. With a few exceptions, you’ll need to make your way along a set route from safe zone to safe zone, fighting your way though hordes of zombies as you go.

The levels themselves are more or less linear. You pick up the weapon of your choice, grab a first-aid kit, and make for the safe rooms that are your resting point between levels. From the moment you start the game, you’re put into the shoes of one of four survivors trying to get out of the city – Zoey, Francis, Louis, or Bill. This is the world that “Left 4 Dead” puts you in. You break out in a cold sweat, leveling your weapon at the rapidly approaching horde and get ready to fight for your life… But somehow, you always know when the Infected are close – and sure enough, you hear the thunderous sound of footsteps as a crowd of them, attracted by your light, charge at you. In the two weeks since the infection, you’ve learned to shut out the ever-present groaning and shuffling, and you barely jump at the sound of distant screams anymore. The last few hours have been an unending fight from safe room to safe room, but now you’re almost there – the silhouette of Mercy Hospital looms just ahead. You’re making a desperate attempt to get to the hospital across town, where you hear survivors are being airlifted to safety. Your sweating palms are clenched tightly around your weapon, the attached flashlight providing a narrow beam of light that throws your surroundings into a harsh darkness by contrast. You creep down the narrow alleyway, the flickering shadows cast by a dozen fires playing maddening tricks on your vision.
