Oceanar.IO is an online multiplayer game that is categorized as IO. This game is quite similar to the offline big fish game. It is your job to get bigger, and eat the other players!
You begin with being a small fish, eat the floating substance will make you bigger and reproduce smaller fish.
You need to get as much food as possible, the smaller fish you reproduce can merge into the larger one. Create an army of yours to fight with other players to win this game.
Move your mouse to guide the fish. Left-click is attacking, right-click is merging.