Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Air traffic control tower and radar simulator (solo + multi-player)
a webgl Cesium 3D flight simulator
A software gps simulator
OpenRadar is a standalone radar screen for FlightGear
Radio controlled plane simulator
An accurate, scalable, and energy-aware simulator for WSNs
Simulate the synchrotron motion of particles in a ring accelerator
SDK for the SARK-110 Antenna Analyzer
QRP contests simulator
Wireless Sensor Network Simulator
SimuMANET is a tool for deployment and real-time monitoring of MANETs