If you are going to play Free Online Games Submarines, you will open unprecedented beauty of the underwater kingdom, but also the dangers can not be avoided. We'll have to chase pirates along with Scooby Doo to solve the mystery of their treasure. Captain Nemo is fighting against predators, going against them with a harpoon. Your submarine sinks deeper and deeper, but the screw should not get lost in the weeds, and try not to get stuck on the reef. And to hold the device through a narrow cleft in the rocks, you have to be almost a sniper. On you will attack sharks and rays, attack enemy submarines, and all need to fight back.