GridLock

GridLock isn't tic-tac-toe. It's nine games of tic-tac-toe, wired together.  Every move you make decides which board your opponent has to play next.

Win a small board, and you claim one square on the big board. Win three in a row on the big board, and you win the game. Simple to learn, genuinely hard to master because the cell you pick doesn't just win you a square, it forces your opponent's hand.

The Wild Board

One board on the grid glows red, marked with a crosshair. Win it, and you don't just claim it you claim its mirror board too, even mid-play. It's the single highest-value target on the grid, and both you and the AI know it.

Play your way

• Vs AI — a strategic (but beatable) computer opponent, ready anytime
• Vs a friend — real peer-to-peer multiplayer, no account or server needed. Create a game, send a short code, they join. That's it.
• A coin flip decides who moves first, every game, no home-board advantage
• One undo per game, and a 20-second clock per move to keep things moving

Make it yours

• 5 achievements to hunt down, from a flawless win to a clutch last-second move
• Unlockable cosmetic sets — swap your X and O for a glowing energy shield and crossed plasma swords, or a holiday-themed set, as you rack up achievements
• Full match history tracked locally, so you always know your record

Find an opponent Join the GridLock Discord to find people to play against live.