Tic-Tac-Toe 3D

How to play

Get three of your marks in a row anywhere in a 3×3×3 lattice of cells — across, up, through, or diagonally in space. 49 different winning lines to watch for.

Rules

  • Tap any open cell to place your ×. You move first.
  • Drag anywhere that isn’t a cell to orbit the camera and peek inside the lattice.
  • Line up three of your marks in a row — in any straight line through the 3D grid, including space diagonals — to win.
  • All 27 cells filled with no winner is a draw.

Tips

The very centre cell sits on 13 of the 49 lines — the most valuable square on the board. Watch the space diagonals!