Left 4 Dead is a first-person shooter game, an apocalypse survival game from Valve. The game is a zombie apocalypse game where you play as one of four survivors trying to get themselves to safety. These survivors are Bill, Zoey, Francis and Louis. They're trying to get themselves to safety as their story began two weeks after the infection. They themselves are immune to this virus while thousands of people already become hungry undead.
The gameplay is almost similar to any Valve game, you can play up to 4 players with friends or people from the internet and play together. The zombies in this game are also unique, you won't just meet regular zombies, there are special infected that has many special abilities which can get you some troubles. Hunters for example, likes to leap and then pinned the survivors by surprise. The most fearsome infected could be the tank or the witch, they are the worst. Witch can take you down with only single attack despite her pity appearance. Weapons are quite good here, there are pump-action shotgun, dual pistols, submachine gun, assault rifle or hunting rifle. If you're overwhelmed, simply toss a pipe bomb and that thing will attract zombies from you and then blow them up.
Graphics of Left 4 Dead is quite decent and impressive. The Source Engine has again prove its worthiness. Explosion effects, gore and blood effects, the sounds and the environment are all impressive, including the amazing ragdoll effects which makes the environment more chaotic. And still, the game runs pretty stable and smooth.
Overall, Left 4 Dead is a good game to play with friends. I recommend this.
+ Cooperative play.
+ Good choice of weapons.
+ Good graphics, engine and physics.
+ Many variety of zombies.
- AI team still not very improved.
- Harder difficulty is too hard.