Tic Tac Toe Master

Tic Tac Toe Master turns the familiar marking game into a choice of board sizes and opponents. You can take turns with a friend or challenge the computer, using the traditional 3 by 3 grid or larger boards from 5 by 5 through 8 by 8.

The appeal is in claiming useful spaces before the other side can do so. Each turn changes several possible lines, so a move can support your own plan while blocking an opponent. The clean rules make it approachable, but larger boards create more room for careful placement and logical decisions.

Mouse control works on desktop, while touch input supports mobile play.

It is a straightforward puzzle match built around alternating turns and occupied spaces.

Choose whether to play against the computer or a friend.

Take turns marking open spaces on the selected board.

Use the 3 by 3 grid for the traditional format.

Try a board between 5 by 5 and 8 by 8 for a larger layout.

On desktop use the mouse, or touch the board on mobile.