Oceanar.io

Oceanar.io is an ocean arena where you grow by gathering a school. You eat plankton to multiply your fish. Free to play in your browser.

About Oceanar.io

You start with a single fish. As you gather plankton, new fish join behind you and form a school.

Combat depends on school size: when you meet a smaller school you swallow it, and you need to flee from a bigger one. But if your school is scattered, you can lose even when you outnumber the rival.

Why do kids love this game?

Watching the school swimming behind you grow is an immediately visible reward. The rule is clear in a single sentence.

Is this game safe for kids?

Yes. The fish are drawn cutely; there is no blood or disturbing content.

1. Steer your school with the mouse.
2. Gather plankton to gain fish.
3. Your school swims behind you.
4. Swallow smaller schools.
5. Flee from bigger schools.
6. Move without scattering your school.
7. Aim to become the biggest school.

• Keep your school together: a scattered school falls apart in combat even if it outnumbers the rival, so avoid tight turns.
• Grow on the edge: the center of the ocean is crowded, gathering your first fish on the edge is much safer.
• Compare sizes: before attacking, make sure your school is noticeably bigger than your rival's.
• Flee in a straight line: zigzagging while chased leaves fish behind, fleeing straight saves far more of your school.
• Collect the aftermath: when two schools collide, gathering the scattered fish around is the fastest way to grow.

• School mechanic: the fish you gather swim behind you.
• Size combat: a bigger school swallows a smaller one.
• Plankton gathering: the core way to grow your school.
• Endless arena: no rounds or levels.
• Cute visuals: fish are drawn in a cartoon style.
• Any device: playable with mouse and touch controls.