Earth Under Siege Steam Gift - discussion

It's an Action Tower Defense game based on frenetic shooting mixed with strategy and upgrades. The Earth is being attacked by an Alien Empire. All nations started working together to create the best defense system humankind could possibly assemble. Great offense turrets were created to attack any incoming threat! You are the chosen commander to take control of them and bring hell to outer space! In Earth Under Siege, you are in control of the turrets you build to defend the planet from an ali
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