Route Digger is an interesting puzzle game. There are balls on the ground. They need to find their home-the tunnel. But the tunnels are buried under the ground. So you need to run your brain, drag the mouse to draw a line in the sand. The balls will drop down along the lines. But it is not easy, there are a lot of obstacles. You can not let balls stop, so you need the lines to lean and avoid the bricks. If the balls touch gears, they will die. Use your wisdom to the deeper level!