Ultimate Tic Tac Toe
Ultimate Tic-Tac-Toe takes the classic game of Tic-Tac-Toe and adds an extra strategic layer to it.
Each square of the 3×3 game board contains another smaller 3×3 game board. Where you make your move in a square of any small board, you send the opponent in the respective square of the big board. 3 in a row in a small board wins the small board, 3 small boards in a row win the game.
Ultimate Tic Tac Toe is my first online multiplayer game. I decided not to use an existing solution for the netcode and make it myself. What I ended up using is a long way from perfect, but I learned a lot about networking by doing it myself.