Free-force bubbles were a defensive technology which could be utilized on lighthuggers, and even on smaller space-faring craft. Developed by Remontoire with information gleaned from Aura, who as an infant was infused with advanced technical knowledge by Hades, the technology was based on the force-projection armouring skein of the grubs. It was at least partially effective against the Inhibitors, but would interfere with the functioning of any nearby hypometric weapons.