Atomic Sea is an addictive online game that takes place in the water world with you taking the role of the fish. You can play the game in adventure mode or survival mode. The fish will have to survive the dangerous surrounding filled with hostile creatures and other threats. However, it will also have to feed on the relatively weaker creatures to survive and grow stronger. There are so many different types of useful upgrades to avail during the game play. Use the mouse to play the game.