Formicidae is the official simulator and visualizer for the Ant-Wars competitive programming site, written in Java and SISC. The site is hosted at www.ant-wars.net.
Framework for Ufo Clones (FUC) is a cross-platform library for constructing multi-player isometric team warfare games. The platform enables developers to forget tedious programming and focus on, e.g., audio and the graphics, AI, and the game dynamics.
Tourk is a framework for developing programming games, where two (or more) people write game playing code (like Deep Blue) and a controller puts the two against each other.