Code by Stig Brautaset

All code here is Free Software and released under the GPL, unless otherwise stated. (Newer ones tend to be BSD.) You can get the source to all of them from my Subversion repository. I usually announce new projects and releases on my Cocoa blog. See also my Freshmeat account.

Games written in Cocoa for Mac OS X

Phage—a unique abstract strategy game.
Auberon—a Connect-4 game.
Desdemona—a Reversi (aka Othello) clone.

Objective-C Frameworks

These are Foundation frameworks, so should work on OS X as well as on GNUSTEP.

Statistics—a simple-to-use framework.
JSON—provides JSON-handling.
CouchObjC—an interface to CouchDB.
AlphaBeta—a game-tree search framework. Used to create the AI in all the games above.

C Libraries

ggtl—a game-tree search library.
sl—a tiny linked-list library.

Perl stuff

Can be found over at my CPAN account.

One-off hacks and unmaintained stuff

a small collection of one-off hacks in C, C++, Perl, Shell and Prolog.
an options-parsing library (hey, everyone's gotta have one, right? Now I'm just missing the templating language...)
an ncurses-pacman game. It might still work.