Released in November 2008, Left 4 Dead has proven to be one of the biggest hits for Valve since Counter Strike Source servers, overtaking TF2 servers in the popularity contests.

Left 4 Dead game servers offers two types of game play. One where you work with a team and other people online – campaign based. Also, and more popular is versus mode, versus mode splits up players into two teams of four, the Survivors and the zombies. Survivors have the role of completing the level On the other team, the Zombies controlled by human player’s mission is to hunt down the survivors using the Tank, Smoker, Hunter and Boomer.

Other than the human zombies, computer controlled infected also attack humans. If you have watched the movie 28 Days Later, you will probably be familiar, their strengths are in numbers – hunting in dozens of packs called hordes. They can climb ladders and scale objects with relative ease and break through walls and doors and like to be attracted to flash lights and loud noises like car alarms and gun fire.

We then move on to the uncommon infected which you will meet less often by strategically placed throughout the game to keep you and your buddies on your toes.

The witch normally only appears a couple of times for each campaign and is normally passive provided you don’t disturb her with your flash light or loud noises or just being too close to her. She can be disturbed by accident as she tends to lurk off the normal map route.

In versus mode there are a number of infected you can play as. The vommit of the boomer is enough to temporarily blind you, and attracts the horde. So keep your distance to avoid any unnecessary aggravation by his bile.A skilled marksman would pick him off from distance as he is slow and has low health, Do be aware any nearby survivors will be covered in his bile.

In terms of speed, the hunter is like the fast zombies on HL2. They do not look quite so zombie like, just more like your local chav from the street corner but just as dangerous! Quick and agile, he can scale a wall with ease. He will pounce and pin down survivors until death like a cat, unless another survivor knocks him off. However he doesn’t have much health so can be taken out easily.

The sneaky smoker ambushes his victims with his long tongue. Similar to the barnacle in Half Life 2, another survivor must free you once you are caught. Impairing their vision as well, they emit a smoke. You can be sure of a smoker’s presence by a coughing noise.

It would be wise to master the Tank before you move onto Left 4 Dead 2 game servers. You need to play Left 4 Dead 2 to understand the immense power of the Tank!