Advanced Melee Tier: 4 Unlock Cost High Tech Datoid: 15 Nuclear Datoid: 10 Alien Datoid: 5 Disk space: 11 Unlocks Vibroblade Research Prerequisites Security → Basic Weapons → Improvised Arms → Firearms → Turrets → Explosives → Energy Weapons Security → Basic Weapons → Improvised Arms → Firearms → Precision Firearms → Energy Weapons
