Draw and Simulate Finite States Machines (FSM)
OpenNum lets you distribute solvers with a nice graphical interface
A wireless push-type network simulator.
NMR Product Operator Calculator
System safety, dependability and security analysis
Create Strain and Kinetic Energy Density maps from FEA
Modbus slave simulator
AVR simulator IDE
Portable OS X FOSS applications
Simulate an epidemic like the Corona Pandemic and look at statistics
PySCeS Constraint Based Modelling
X-ray diffraction (XRD) analysis for hkl simulation of any crystal.
RSSceSim - Reputation System Scenario Simulator
A framework for simulating open quantum dynamics