Demon villages didn't have the usual expected setup. They didn't have women and children in the normal sense, or more accurately, any women they did have were soldiers and warriors just like the rest.
As one might expect, then, they didn't reproduce normally either. Much like Dens and Mount Steles, they spawned. But unlike Dens and Mounts, their spawning was based on something known as Conqueror Points.
The more territory they claimed and controlled, the more Conqueror Points they'd have, and the more chances at evolution and increasing their army size.
But… by the same token…
If their City Stele was suddenly conquered…
…
Sylas stood over a cracked City Stele as it crumbled into motes of light. He didn't hesitate to turn it into Experience.
He had expected to earn quite a lot because these villages were quite powerful. Although most of their warriors were gone, he didn't think that that would affect the worth of their City Steles.