Aegis of Earth is set 50 years after the “Silent Apocalypse,” a horrific occurrence. This horrific tragedy unleashed a slew of creatures hellbent on annihilating humanity. With the arrival of the beings came the appearance of a new element known as “Altenite,” which represents Earth’s last hope for survival. Prior to the start of the game, the surviving humans erected fortified cities that have subsequently protected them from different invasions. However, with the approaching “Altered States” and ongoing monster invasions, the inhabitants must prepare while expanding and defending their towns.
Players assume control of various metropolitan regions, collecting taxes from citizens, acquiring equipment, distributing resources, and preparing the battlefield with infantry and artillery to defend the city against an impending assault. Once the battle starts, waves of opponents will approach, and the player’s responsibility will be to defend their city using the weapons set in the preceding planning stage.