A circuit simulator with graphical user interface (GUI)
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...
Integrated Development Environment (IDE) for learning HDL
Yet another system region and language simulator
Plug&Play Hardware simulation over a virtual bus system.
GeckoCIRCUITS is THE circuit simulator for modeling power electronics
RSSceSim - Reputation System Scenario Simulator
Live DVD with CORE network simulator
Allows you to build your own circuits and test them
Lucid chamber simulator
GNS3 Network simulator Live USB
A framework for implementing real-time control systems
A Simulator for AWA in GMAT Exam (Win and Mac)
Highly realistic and immersive model for Flightgear.
An open source process simulator
The Future of the Java Circuit Simulator
Build now your diagram logic circuit
A free automata simulator that simulates DFA/NFA/DPDA/NPDA/STM
Virtual paper folding program