Below the continents of Auraxis lie the secrets to an ancient alien technology. Join your fellow comrades in uncovering these vast caverns and the technology that will give your empire the edge on the battlefields above. If you and your teammates have the skill and perseverance to emerge victoriously, you will unlock the technology and tools to gain powerful new weapons, vehicles, underground transports and enhanced empire bonuses.
* Six new massive underground war zones
* New Ancient-technology vehicles and weapons which can be used by all Empires
* Head-to-Head Urban style combat in subterranean cities
* Unique alien complexes to explore and conquer
* New underground environments from volcanic lava flows to ice caverns
* Ancient technology can be used by all Empires to upgrade existing surface level facilities