Here are a few screenshots of WBTicTacToe to give you a feel for the game.
Here is WBTicTacToe running on my AmigaOne.
WBTicTacToe
The simplest and traditional game type, played on a 3x3 grid. Player 2 (green) has won this game; the winning row is highlighted.
3D Game
This game is being played on a 3D board, 3x3x3. A win is counted as a full row in any direction on any of the three boards, or in any direction through the boards. Player 2 (green) can win in this move by putting their mark on the top board, in the middle-right square to get a diagonal row down to the bottom left.
4D Game
This game is being played on a 4D board, using a 4x4x4 board that changes through 4 different time slots to make it 4x4x4x4. The boards cycle as shown in the GIF, and can cycle automatically every second or two, or manually using the cycle gadget. This game has been won by player 1 (red) with a row through time...
MorphOS
WBTicTacToe also runs fine under MorphOS (and Workbench 3.x) since it's a 68k application.
And here's the Windows version of WBTicTacToe running on my PC.
WBTicTacToe
Here's the basic 2D game with Player 1 (red) just after winning.
4D Game
Here's a 4D game being played on a 3x3x3x3 board on Windows.
