SUMO is a microscopic, multi-modal traffic simulation.
Open source simulation game based on Transport Tycoon Deluxe
Air traffic control tower and radar simulator (solo + multi-player)
Modbus TCP/RTU Slave Software.
TCP Experiment Automation Controlled Using Python
Open-DIS implements the IEEE DIS protocol in multiple languages.
Otanes is a live TV simulator for Content-Centric Networking (CCN).
DSOL: A Distributed Simulation Object Library implemented in Java
Software package that facilitates traffic simulation
vtSim is a traffic data and simulation management environment