Dark Sky Category:Online Shooting Games Description: The first nuclear powered expedition to Mars ended with disaster. Just after the unmanned craft touched down on the Mars' polar ice cap the reactor suffered a melt down. The reactor's immense heat melted though the ice straight through to the planets core. It caused a chain reaction that ultimately led to the planet exploding. Now planet earth's sky has become dark and threatening with rock and debris in scattered orbits. It's up to you to save the earth from plummeting asteroids by clearing the dark sky. This game is online. Tags: Instructions: Check inside the game for instructions on how to play Dark Sky.