Orcs
Bred and broken for war, mortals unmade into a tool with the will burned out and only appetite and obedience left.
It is the deepest truth about the enemy, and the deepest hope against him: the Void makes nothing. The Fallen has no craft of his own, no first creation to set beside the Smith's dwarves or the Earth Mother's forests. Every terror in his host began as something the loyal gods made, taken and unmade toward the nothing. The Corrupted are not a rival creation. They are creation with the meaning scraped out.
This is why the dark can rise but never truly build, and why an age it fully wins would not be a dark empire but simply an empty world. The Corrupted below are what that unmaking looks like on the way down.
Trolls & Ogres
Brute mockeries of the giants, the mountain-makers' grandeur twisted down into hunger and ruin.
Demons
Fallen angels, the radiant Faithful of the divine host turned inside out and fed on the Void.
War-chimeras
Void-twisted beast-folk, the crowned wild fused and remade into weapons, several ruined creatures forced into one.
Read on
The god who twists them is set down in The Fall. What they were before the Void took them lives in The Natural Order and The Peoples.