Earth

The blue marble.

Role
Earth is where humans evolved from, this is where most of the beginning story takes place as well. It appears that the only creatures in the universe that have been able to discover the Uerica through accidental consciousness slips are humans, which is why SCAR has been so intrigued by its existence. Earth is where our heroes are created, united, and challenged.

Apocalypse
After Abel destroyed SCAR's portal, it creates a new entity called Enormity due to its appearance. The Vines spread across the Earth, destroying everything in its way including man-made structures and wildlife as well. This caused humanity to fall apart, as a first response to the Vines was to kill them. Nuclear weapons were used to prevent their spreading but that only did more harm than good, countries went to war for resources and for weapons but the Vines showed no sign of stopping. Soon, Faba began to appear as the Vines caused humans to mutate into vine-like zombies which would attack any remaining humans.