ShipTracking is a project mainly written in JAVA and PYTHON, it's free.
Python and GIS
LeyLines!
Sign up for this game at http://leylin.es
I'm planning on releasing a prototype in late spring. It is being prototyped in Processing, but am probably going to port to OF because of some of the gameplay decision I've been making.
It saw a bunch of development in march, very little dev in April because of other commitments, but will hopefully be resuming mid May.