New Project - The Programming Games Wiki
programminggames.org
programminggames.org
But I found at least two other programs, that may be of interest to visitors of your site. The first (quite obvious) is the RoboCup site: http://www.robocup.org/
No, you don't need to own a team of robots, since they offer a Simulation League: http://www.robocup2011.org/en/content.asp?PID={EBB75948-5058...
So you can run your code in an rather complex environment, simulating a complex game and real robots. Simulator software is here: http://sourceforge.net/projects/sserver/develop
Only bad point is, that it will run only in Windows.
Another interesting project for people interested in an even more realistic environment is the Player/Stage/Gazebo project. This software (intended for research) allows to simulate real robots, their sensor hardware and environments. Software written can be used in the simulation module or in real robots. While it is no game, the software could be used to build any kind of environment for robots to cooperate and compete. http://playerstage.sourceforge.net/index.php?src=index
If you're a fan of programming games I'd love to hear from you.
Otherwise please feel free to criticise my choice of platform :-P