4D Connect 4

This is Connect 4 played on a 4x4x4x4 board.  The 4D board is displayed as a 4x4 grid of smaller 4x4 grids.  A counter's position on the small grid represents two dimensions, while the grid's position among the other grids represents the other two.  Winning lines can run in any direction through four-dimensional space, including lines that pass between several of the smaller boards.

You can play against computer opponents or against other players locally.

You can also start with simpler versions of the board to get used to the representation before moving up to the full four-dimensional game.

If you want to play this same game with friends online, start a game at our website where you can share an invite to join your game (no login needed).  And if you enjoy experimenting with 4D geometry, you can also try my 4D Viewer and 4D Builder, where you can explore, fold and construct four-dimensional shapes.