Zombie

A human or proto-human corpse reanimated with Wyrdo technology to perform labor.

In the Ancient Era, this labor was coordinated through use of the Pylons.

In the Modern Era, since the Pylons are either not being utilized properly or are not functioning outright, Zombies exhibit no concerted efforts of any kind. Instead, they wander, sometimes performing actions that they are used to from their previous life. For example, a soldier-zombie might wander the wastes clicking an empty gun (or nothing at all); a miner-zombie may be seen endlessly digging a hole, etc.

Some of the zombies can be aggressive. This depends on their previous profession, the last thing they were doing/thinking as they died, any stray Pylon signals that may still be active, etc.

They eventually decay, although very slowly because of lack of atmosphere and bacteria/fungi outside the domes. They can function indefinitely in the low atmosphere, but this causes a much slower 'metabolism,' causing them to sometimes move and act very slowly, depending on exposure.

All humans are exposed to the Wyrd bug, but not actually infected until the body is dead, after which it starts its action. Zombification cannot be spread from contact with a zombie.