MJ Playground Online

Play a friend

Choose a game, create a private room and share the invite. No account is required; an MJ Profile only adds saved competitive history.

Guest-first. Your friend opens the invite link, enters a name and joins. No account, email or MJ Profile is required.

Checking for saved matches…

Private rooms

Choose a game

Tic-Tac-ToeFast tactical matches with forks, traps and series play.

Create or join a room

Connect 4Drop discs live, build threats and connect four before your friend.

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ReversiTrap and flip lines of discs, with forced passes handled by the server.

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GomokuBuild five in a row on a 9 by 9 board before your friend can block it.

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CheckersCompulsory captures, multi-jumps and kings in a live private match.

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HexBuild an unbroken connection across your two sides before your friend.

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Dots & BoxesDraw lines, close boxes and keep the turn when you score.

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MancalaSow stones, capture across the board and chain extra turns.

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BattleshipsHunt hidden auto-placed fleets without revealing private ship positions.

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ChessPlay full legal-move Chess with checkmate, castling, en passant and promotion.

Create or join a room

Want your record across devices?Sign in to an optional MJ Profile for per-game wins, losses, draws, streaks and recent match history.