Oceanar.io

Life in the ocean begins with a lone piranha in Oceanar.io. Swim through deep water, eat plankton and small debris, grow larger, and gather fish into your pack. A bigger school lets you attack smaller groups, while larger predators force a fast retreat. The queen stays at the center of your swarm. If she falls, the pack goes with her. Jellyfish poison your group, though a strong swarm can eat them for a big bonus. Crabs drift through the water as neutral creatures and may join your side. Use the ocean floor as cover, set up ambushes, split the pack during a hunt, then regroup for defense. Pack growth and wins over other players raise your score and push you up the leaderboard.

How to play?

Guide the piranha queen through the water and feed on plankton and debris to increase her size. Move near smaller fish to recruit them into the swarm. Pick fights with weaker packs, break away from larger ones, and watch jellyfish before they cut down your numbers. Once the swarm is large enough, eat the jellyfish for extra points. Approach the crabs to add them to the group. Separate fish when chasing prey, then pull them back together when danger closes in.