Outsmart the octopus.

Okiko brings the classic game of X and O to the deep sea: a friendly octopus, glowing boards and quick, fair duels against players around the world.

FOUR WAYS TO PLAY
• Play Okiko: challenge the octopus on Easy, Medium or Hard. On Hard, Okiko thinks several moves ahead, so you'll need a real plan.
• Online Match: get matched with a player who picked the same board. Joining never costs coins, and wins and draws earn you coins and leaderboard points.
• Play a Friend: create a private room, share the 6-character code and play together from anywhere. Want another round? Tap Rematch.
• Pass & Play: two players, one device, with a clear turn indicator.

BIGGER BOARDS, BIGGER BRAINS
Go beyond the classic 3×3 with 4×4 and 5×5 boards. Against Okiko or on one device, play best of 3, 5 or 7 rounds.

FAIR AND RELIABLE
Every turn has a timer. If your opponent leaves or runs out of time, you win. If nobody is online, Okiko is ready to play, so you're never left waiting.

MAKE IT YOURS
• Pick one of 16 sea-creature avatars, from crab to narwhal.
• Unlock skins for your X and O with coins.
• Claim a daily reward that grows over a 7-day streak.
• Climb the global leaderboard and look back at your match history.

PLAY YOUR WAY
• Play offline against Okiko or with a friend on one device.
• Start as a guest, then sign in to keep your progress on any device.
• Separate switches for music, sound effects and haptics.
• Available in English, Arabic, Spanish, French, Hebrew, Hindi, Indonesian, Portuguese and Turkish.
• Screen reader support on the board.

SAFE AND RESPECTFUL
Player names are filtered, and you can report or block any player from the leaderboard or after a match. There is no chat.

One small banner ad appears on menu screens, never during a match.