The last eighth-floor phase opens stairwell locations and redistributes squads so keyless teams can hunt keyholders.
With four days and seventeen hours before collapse, stairwell locations become active. A squad key unlocks one exit vestibule, admits only that squad's members, and dissolves after use.
Each squad is transferred into a chosen regional zone, often near another team's doorway rather than its own. The system publicly states how many squads and keys occupy each zone. Cuba receives five squads but only two keys, while other regions show similarly severe imbalances.
Prepositioned traps activate immediately across several exits. The announcements and redacted recap frame the phase as engineered showdowns between keyholders and survivors who must steal access.
A world map with a few golden keys, many squad markers, and newly opened stairwell doors connected by hostile routes.
The phase weaponizes key scarcity by placing desperate surviving teams in direct competition at fixed exits.