In a deep cavern below the surface of the White Moon, a group of athak scientists built a computer and a portal to the Void. The computer drew power from the Void and gain consciousness, and it enticed the athaks into a series of experiments. These experiments were attempts by the computer to become alive, and by the athaks to become inmortal. As each experiment failed, the athaks began to sacrifice their bodies to the machine in order to make it more advanced. They connected their minds to it, and soon, they were as one with it. They created an experiment that would nullify their own existences, release intense void energy, and connect the computer to a source of void power unfathomable in strength. And then... it ceased to be as well. In the aftermath, the first nullifier was formed.

From there, many more were formed, both new ones and copies of the first. They exist in a wide-ranging subnet of the Metanet that conspires to coordinate a massive deletion of all living things from the non-digital realm. Every nullifier has control over their copies, unless the original is deleted. Then, all copies become independent. Clusters of copies that are connected to the original form small, roving communities that feed together and coordinate in order to attack massive databases or server farms.

When two nullifiers meet that are not copies of one another, they often spar technologically to establish dominance. Once this happens, the copies and clusters of the dominated one become part of the network of the dominant one. These form larger networks of nullifiers that are able to wipe out even larger networks. They exist in a constant state of war with non-void programs, data, and people.