In Oceanar, you are just a little angler fish at first with no army. First survive off floating foods and when you’ve survived and developed to a more massive fish, you can recruit an army and launch more serious attacks against an opponent’s army.
You will have to manage your dealings in the environment closely at first. Stay off bigger fishes and recruit an army as soon as you can. Take on bigger fish to earn more spoils and a possible spawn for your troubles.
The mouse is the only controller for this game. Navigate by moving the mouse accordingly, left click to attack and right click to merge with other fish.