Cool Math Oceanar.io is a fun-addicting MMO game. Start the adventure with a single fish. Swim around and collect food to gather new members and create an army, which used to rule the ocean. You can crush an opponent group with your own or take on the jellyfish which once killed you as a fresh spawn. You’d better defend your team to survive and rank up. To gain more scores, you can attack weaker ones. Let’s play and figure out the combat right now! Good luck!
Use the mouse to move, left click to attack, right click to merge smaller fishes into a large team.