Zerg: Onslaught

Swarms of insects pass by, and everything returns to ruins. Every devouring is an iteration of genes; every fighting is a game of the brood. The Cullen Brood awakened on the edge of resource exhaustion. From crushing primitive groups to confronting powerful ones, it gradually devoured genes and expanded its territory. However, in the wreckage of victory, it discovered the secret that the Zerg had hidden for hundreds of millions of years - their rampage was never instinct, but a manipulated fate.