A circuit simulator with graphical user interface (GUI)
An advanced network simulator to design and configure virtual networks
Air traffic control tower and radar simulator (solo + multi-player)
Fractal planet and terrain generator
Satellite Emulator
Robot simulator inspired by Sim.I.Am
Multiscale Neuroscience and Systems Biology Simulator
The interactive 2D fluid simulator.
SAPS - symulator protokołu rutowania AOMDV, zbudowany w Pythonie
Simple simulator of monoatomic gas.
Automatic chooser of optimal fleet (with limits) for ogame browser gam
A disassembler and a simulator for the MSP430 CPU
The QCSS is an initiative in the form of a cognitive problem.
QCSS Player by Shuffle
PunyKit - it's a very simple webkit-based browser.
rp6simul is a simulator for the RP6 robot (AREXX Engineering)