Three in a row wins. Beat the computer or challenge a friend live.
Tic Tac Toe is the classic game of X's and O's on a 3x3 grid. Take turns placing your mark, and the first player to line up three in a row, horizontally, vertically, or diagonally, wins. If the board fills up with no winner, it's a draw.
Play Easy for a relaxed game, Medium for a real challenge, or Hard for a computer opponent that plays perfectly and can never be beaten, only drawn at best if you play flawlessly too. Or skip the computer entirely and create a room to play a friend in real time.
100% free, no download, no account. Works on phones, tablets, and computers.