Exodus - Nobody saw them coming. In the year 2465, aliens destroyed the planet Earth, and only 3,000,000 survivors are launched into space under your command. Help protect humanity against the alien invaders as you find a new Earth somewhere in the galaxy! Move to fire Autocannon. Mouse Button: Click to fire Death Ray. X: Use Shield Bomb. Death Ray rocks, it really does. Use it on the medium- and big-sized baddies to really improve your chances of survival. Shield Trap them, don't let your poor colonists down, use your Shield Trap (X key) often to replenish your shields during combat.