As I mentioned in my last post about my Sudoku game, I was working on this GoMoku game a couple of years ago. It has decent AI for single-player games, but the best feature is the network play ability including chat. This allows you and a friend to play against each other over a LAN or the Internet. (One player first "listens for clients" then the other can connect to the first one's IP address.) A third person can also connect to observe the game.

Here are a couple of screenshots:




There are a couple of minor bugs mainly involving the network capabilities, but it's definitely very functionally kickass imho.

Give it a try and let me know what you think! Just download NetGoMoku.zip then unzip the game anywhere and start playing!