About Tic Tac Toe Planets

Red and blue planets stand in for X and O in Tic Tac Toe Planets. On the title screen, a smiling astronaut stands beside a finished board on a black, starry sky, with a glowing line through three red planets running corner to corner.

The rules stay the same. Click or touch an empty spot on the three by three grid to place one of your planets, then wait while your opponent places theirs. Line up three of yours vertically, horizontally or diagonally to win.

Below the board is a set of round buttons. One shows a single figure and another a group of figures, which look like the choice between playing alone and playing with a friend, and the others cover help, music, sound and full screen. The layout is tall, like a phone held upright.