Install gomoku.app by entering the following commands in the terminal:
sudo apt update sudo apt install gomoku.app
Description:
Extended TicTacToe game for GNUstep
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 so before you. You can play the game on boards of different size. The game has 6 different difficulty levels.
Homepage: http://www.gnustep.it/nicola/Applications/Gomoku/
Version: 1.2.9-3
Section: universe/games