THE RECLAIMED

The hulking constructs known as the Reclaimed are quasi-sentient robots, built inside some of the factory-cities left behind when the Tech attacked humanity.
After the war that ensued, some of the abandoned cities started scavenging for Tech AI cores from the scrap of destroyed robots, and reprogramming them.

Some turned out to be still partially functioning, and were used in the heart of the Reclaimed robots, surrounded by layers of concrete and tempered steel.

The resulting giants have little agility and control, but are extremely sturdy and relatively cheap to make and repair. Rarely accompaigned by their human creators, the Reclaimed warbands roam in predefined paths protecting the factory-cities and wiping out any potential threat.