Morpion 4

Similar in concept to noughts and crosses where each player strives to get three of his own symbol in a row (horizontally, vertically or diagonally). Morpion takes the concept further by allowing you to play on several board at the same time. There are 3D and 4D variations on the theme, making it very difficult to know when pieces on different boards make up a legal line of three. There are several types of board view to choose from, different difficulty levels and the ability to play against the computer or a friend.