Collectively forming a single, monstrous superorganism, the Tyranid swarms sweep over the galaxy and consume everything in their way, using the biomass they absorb to create more and more of their kind while the Hive Mind directs them all with perfect synchronicity. Each and every organism in the Tyranid swarm has been biologically engineered and evolved into weapons of destruction made up of countless organisms working in concert yet appearing to just be one living creature.
The Tyranids, also known as the Great Devourer, are an extragalactic swarm of countless alien species unified by a single will and overlapping consciousness, the Hive Mind. This horror fights neither for power nor territory, but rather to feed a hunger so insatiable that it will eventually devour the entire galaxy.' - Inquisitor Lord Kryptman
Summary 'An alien threat has risen from beyond the abyss, a swarm so vast that it blots out the stars.