Tic Tac Toe by Ali Emre

Tic Tac Toe is a puzzle and strategy game usually for two players. One player is X and the other is O. The player who successfully makes 3 X's or O's in line wins.
In this version of the game we added an option for playing with four players on a 5 by 5 grid.
Features:
-Single Player with 3 difficulties:
--Easy: The AI plays completely randomly
--Medium: The AI plays thinking 2 moves in the future
--Hard: The AI plays thinking 4 moves in the future
-Two Player mode
-Four Player mode played on 5 by 5 grid.
-Easy to play