Qucs-S is a circuit simulation program with Qt-based GUI
Hopsan is a free multi-domain system simulation tool
The Open Source CFD Toolbox
Data Analysis, Simulations and Visualization on the Sphere
Industry standard communication with compliant image generators.
General Mission Analysis Tool
Object-oriented equation-based modelling and optimisation software
Individual-based forward-time genetics simulation software
Simulation and algorithms for queueing theory
Plug&Play Hardware simulation over a virtual bus system.
C++ Library for the Common Image Generator Interface
Open source software calculating industrial noise in the environment
Quantum Mechanical Charge Field - Molecular Dynamics
Particle-in-cell code for plasma simulation
A simulator for drones, cars and more, built on Unreal Engine
Interactive geometry software for Euclidean and non-Euclidean spaces
A High-level Utility Package for FMI-based Software Development
HP-41cx Emulator