The Tier Zero Movement is an activist organization of approximately 3,000 members representing GLMZ's most invisible population: the people who don't register on any tier at all. Undocumented residents, people whose corporate records have been erased or never existed, Underworld dwellers with no legal identity, refugees who entered the city without processing, and the children of all these populations — people who, in the eyes of GLMZ's systems, do not exist.

Tier Zero campaigns for basic recognition: the right to exist in municipal records, to access services, to work legally, to move through the city without being arrested for the crime of having no identity. These are not ambitious demands. They are the minimum conditions for a human life. And in a corporate-sovereign city where existence requires a data profile, they are revolutionary.

The movement operates from the margins — its members can't access the legal system because they don't legally exist, can't engage in political lobbying because they have no political standing, and can't organize publicly because visibility means vulnerability to deportation, imprisonment, or worse. Tier Zero's activism is therefore indirect: they work through sympathetic organizations, communicate through intermediaries, and tell their stories through proxy voices. They are the ghost in GLMZ's machine — the population that the system was designed not to see.