Sewer

┘┐┌└├┤┴┬│─┼ sewer
See Cost	5

A sewer is a part of the system of tunnels beneath New England's cities. Most sewer tunnels consist only of a tunnel a few tiles wide filled with sewage.

The sewers can often be entered through manholes or sewage treatment plants. Moving through sewage is very slow; however, survivors may opt to travel through the sewers to avoid the zombie hordes, or use them to reach a target in a city center. Some survivors have been known to find the junction tunnels between subway lines and sewer lines and establish camps there - the metal doors are impenetrable.

Maps of large portions of the sewers can be downloaded from computers that are often found beneath sewage treatment plants. Odd gaps in the sewer lines are usually crossover points with subway lines, but can also indicate Lab access points. Those are barred, but can be cut open with a hacksaw and a little time.

In the Necropolis, the sewers are more organised, are infested with irradiated wanderers, and can lead to an end section of the sewer tagged as "sewer?" These types of sewer are yet again blocked in many sections by bars and barred doors; the end section of these sewers can lead to the Vault.

Sewers are often home to (mutated) sewer rats, seweranhas, and sewer snakes. These creatures have night vision, but are extremely shortsighted when there are lights on; nor can any of them hear sounds except for sewer rats. It is therefore a good idea to bring a light into the sewer, even if one has night vision abilities; one can kill one sewer rat, seweranha, or sewer snake at a time without others noticing easily.^{Verify (Check re possible reactions to noticing the light.)}

Sometimes, one may also find C.H.U.D.s or Cyclopeans in the sewers. These monsters do not have night-specialized vision and will quickly notice the player carrying a light. However, they are much too rare compared to sewer rats, seweranhas, and sewer snakes for this to be too much of a problem.