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ONE GRID. ONE LITTLE DIFFERENCE.

Ocean odd one out game

Meet a crowd of fish, crabs, starfish and drifting jellyfish. Somewhere in the grid, one ocean friend has a different detail. Find the odd sea creature and keep exploring, at your own pace.

  • 34 levels
  • 1 chapter
  • 3×3 to 10×10
Play Ocean friends

Free in your browser. No sign-up needed.

A little preview. Can you see the difference?
Show the difference

The fish tail has a rounded inward cut.

YOUR NEXT DISCOVERY

Inside Ocean friends

Start fresh or pick up your saved progress. Completed chapters stay available to replay.

Ocean friends

34 levels · 8 grid sizes

Fish, starfish, jellyfish and crabs, with little changes from tail to tentacle.

Play Ocean friends

THE LITTLE THINGS

Look beyond the familiar fins

Ocean friends mixes rounded bodies with distinctive tails, claws and tentacles. Those features give each puzzle its own places to look. All the creatures in a grid share the same basic drawing; one has a changed detail. You are comparing their appearance, not testing what you know about marine life.

A way to look

For creatures with several arms or tentacles, compare the same side of each drawing before moving on. A quick glance at the center can miss a small change at the edge. Larger grids stay available to zoom and explore.

One small find, then another

  1. Find the one that is different

    Tap or click the drawing that does not match. Every puzzle has one answer. A wrong tap lets you keep looking.

  2. Find your pace

    Play without a time limit, or choose the optional 30-second timer. Complete a grid size to unlock the next; replay any size you have already opened.

  3. Keep your discoveries

    Every five newly completed levels across all themes earn a sticker. Finish a chapter for its badge. Guest progress stays in this browser; sign in to sync across devices.

Before you play

What happens after I finish Ocean friends?

Completing the chapter earns the Ocean observer badge. You can choose another theme or replay an unlocked ocean grid. Your original completion stays saved; solving the same level again does not award another sticker or another leaderboard point.

Can I play these puzzles on my phone?

Yes. Use a phone, tablet or desktop browser. Tap the different drawing on a touchscreen, or click with a mouse. Larger grids have a Zoom in option, and Hint can help when you are stuck.

Will I lose my progress if I switch themes?

No. Each chapter keeps its completed levels and unlocked grid sizes. Guest progress is saved in this browser. Sign in while online to sync it across devices; clearing browser data can remove a guest save.

A change of scenery

The same little discovery, in another world.