Plus4

Plus4 is written in Java with the JavaFX library.

The game is similar to connect four, in which the goal is to place four of your pieces in a line. However, in Plus4, pieces are always placed into the top of the board, and only fall down if they are pushed from above. Once a piece has been pushed four times, it falls out from the bottom of the board and disappears.

The more you play against the "Intelligent" computer, the better it will get at beating you, so good luck!

Code for Plus4 is available here.