Collect your own school of fish and become king of the ocean in the multiplayer game Oceanar.io. You play as a little piranha, but as long as the growth of your fish is very small, it has a lot of enemies. As your pack grows and strengthens, you can attack the packs of other players and eat them, and as a result, increase in size even more. In addition to fish, crabs can also join your pack. Eating jellyfish, you can very quickly gain weight. Try to become the largest fish and the best flock in the vicinity.