A wiki-like content management system in PHP with emphasis on time-based information, via a calendar.
A member-based, DB-backed stats program for the Counter-Strike mod of Half-Life.
PHP library of functions for querying gameservers of varying protocols and displaying gameserver information in HTML format. Easily extensible to support additional games/protocols. Currently requires PHP5, though PHP4 support is in active development.
For use in a product development or system maintenance department, KRASS is a small and easy system for specifying and managing requirements and milestones for your company's software development projects / systems.
Scryer is a robot written in PHP for the MMORPG Age of Conan, it's primary function is to help with guild organization and communication.
phpDCadmin, is a set of modules, with a web interface to work with linux versions of Direct Connect Hubs. (Modules are so it is easier to change the web interface).