Tictactoe is a version of classic tic-tac-toe game. Players place X’s and O’s on a 3×3 or 5×5 grid. Simple game of strategy. This is the classic tic tac toe game, still it can put you in difficulty. First of all choose your grid 3×3 or 5×5. For beginners it’s recommended to start with the easy version, as you play against the computer which is merciless. Just place X’s or O’s on the table in order to get in line 3 of the same kind. If the other player does that, it’s game over for you as you lose.