Goben is a GTK+ 1.2 GUI for playing Go. It allows any combination of human vs. computer, computer vs computer, or human vs human play, and supports any board size from 5x5 to the full 19x19. Computer players are controlled via GTP for compatibility with GNUGo and other GTP talking Go programs. SGF support is provided for saving, loading, and continuing games.
Gomoku.app 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.
Hinversi is a implementation of Reversi (a.k.a. Othello), a board game in the style of Go. It can support many frontends and backends, so you can select how clever your computer opponent is, and whether you like to play using the console or a GUI. You can also let one AI engine play against another one.
Horror Squad pits modern and high tech weaponry against the supernatural in a squad-based tactical game. You can face off against the Wolfman, Frankenstein's monster, and the ancient Mummy using pistols, automatic rifles, bazookas, swords, and shotguns. It is a true strategy game that uses a turn based gameplay system. It can be played against the computer, or multiplayer in a hotseat mode.