Gomoku is an extended TicTacToe game for GNUstep. You win the game if you are able to put 5 of your pieces in a row, column or diagonal. You lose if the computer does it before you. Unlike most other engines, this engine is not designed to play very well, but rather to give you fun when you play against it.
WWW: http://www.gnustep.it/nicola/Applications/Gomoku/