What exactly does spawn vermin?

[Valase]

@Bio

Where and how do carrion feeders appear?

As I’ve stated in a post in another topic:

@Valase

Both the giant cockroaches and pregnant giant cockroaches “lay” (spawn in) eggs every 7 days, 1 single egg from the giant cockroach and 3 from the pregnant ones.

…and…

@Valase

They hatch once the egg item has “rotten away” (similar to (fertilized) bird eggs) based on the file.

Nymphs spawn from these eggs, which then turn into giant cockroaches after 7 days, and…

@Valase

After 7 additional days, they also turn into pregnant giant cockroaches.

In short: The corpses don’t actually (at least last I’ve checked) make any difference. It’s the offspring of existing cockroaches.