Ok, so the Yor is a race of artificial intelligences, yet with free, individual wills, sort of like the Transformer, I guess. They were driven insane by ancient evil precursors, who instilled a great disdain for all organic lifeforms. In game, you can win by reasearching a specific technology that would allow your race to ascend from the mortal coils and all that.
Since the Yor are artifical intelligence, they shouldn't be tied to the mortal coils, so my reasoning is that they merge into one sentient and sapient cosmic force.
So yeah, it is an AI containing the collective knowledge of the Yor race.