- Enigmatic living machines with remarkable repair abilities.
- The Engineers are non-combat infantry support units that can heal nearby
- friendly units and structures with their reconstitution beams. They can float
- over cliffs and other impediments to escape danger, but have no offensive
- abilities. Engineers have an ability to create an overshield bubble to briefly
- protect itself and nearby allies.
- Mysterious living machines created by the Forerunners to function as techno-
- savants, Engineers have peerless knowledge of all types of technology and
- seemingly inexhaustible wells of ingenuity in modifying and repairing machinery.
- "Born" with an obsession to maintain and protect Forerunner artifacts,
- Engineers in the service of the Banished exist in constant agony due to the
- control yokes bonded to their flesh forcing them to ignore endless requests for
- maintenance from the Ark as a result of Atriox's extraction and excavation
- efforts.