Line up yellow discs in a row, column, or diagonally before your opponent does it with red ones. Disk falls down, occupying the lowest empty space within the column. This game is also known under the names like "Four Up" or "Plot Four".
- November 13, 2014 New version 1.3
- October 12, 2014 New version 1.2
- October 05, 2014 New version 1.1
- June 14, 2014 Initial release