X3D is the open-standard format for 3D graphics scenes on the Web.
External Overhead panel and much more for X-Plane A320 JARDESIGN
Open-DIS implements the IEEE DIS protocol in multiple languages.
tiny code, html webcam game or plug brain in each blob, java server
A Physics Theory for Unifying Classical, Quantum and Relativistic Phys
A server to exchange flightplan information between ATCs
DSOL: A Distributed Simulation Object Library implemented in Java
SuperWikia: The Runtime/Realtime Environment for Codesmiths