Global Defense System - GDS
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Save the world from impending doom. Deflect in-bound asteroids with a giant gun in this defense style game. Shoot the incoming asteroids and prevent them from crashing into our planet. Use the cannons to defend the planet from a meteor swarm thats approaching orbit. After every wave of attacks you can upgrade your cannon, or place more cannons on the surface of the planet. Very cool strategy flash game thats highly addictive.
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