Aegis of Earth: Protonovus Assault brings base building strategy to the PS3. As the threat of deadly monstrosities looms in the distance, its your responsibility to build up defenses and stop the impending onslaught. Aegis of Earth is a unique spin on the action strategy genre that focuses on defense building and resource management. Tax the people of urban regions to purchase new equipment, organize the battlefield with military units, and plan weapon placement carefully to effectively fight off the incoming invasion.