The following is a list of notable computer simulation software.
Free or open-source
Advanced Simulation Library - open-source hardware accelerated multiphysics simulation software. ASCEND - open-source equation-based modelling environment. Blender – 3D creation suite with support for modeling, animation, simulation, and rendering. Cantera - chemical kinetics package. Celestia - a 3D astronomy program. CP2K - Open-source ab-initio molecular dynamics program. DWSIM - an open-source CAPE-OPEN compliant chemical process simulator. EFDC Explorer - open-source for processing of the Environmental Fluid Dynamics Code (EFDC). Elmer - an open-source multiphysical simulation software for Windows/Mac/Linux. FlightGear - a free, open-source atmospheric and orbital flight simulator with a flight dynamics engine (JSBSim) that is used in a 2015 NASA benchmark to judge new simulation code to space industry standards. FreeFem++ - Free, open-source, multiphysics Finite Element Analysis (FEA) software. Freemat - a free environment for rapid engineering, scientific prototyping and data processing using the same language as MATLAB and GNU Octave. Gekko - simulation software in Python with machine learning and optimization GNU Octave - an open-source mathematical modeling and simulation software very similar to using the same language as MATLAB and Freemat. JaamSim is an open-source Java-based discrete-event simulation environment. JModelica.org is a free and open source software platform based on the Modelica modeling language. Meep - an open source package for electromagnetic simulation with finite-difference time-domain (FDTD) method Mobility Testbed - an open-source multi-agent simulation testbed for transport coordination algorithms. MPB - an open source package for electromagnetic band diagram analysis of periodic structures such as photonic crystals MuJoCo - short for Multi-Joint dynamics with Contact, is a general purpose physics engine that is tailored to scientific use cases such as robotics, biomechanics and machine learning. NEST - open-source software for spiking neural network models. NetLogo - an open-source multi-agent simulation software. ns-3 - an open-source network simulator. OpenFOAM - open-source software used for computational fluid dynamics (or CFD). OpenModelica - an open source modeling environment based on Modelica the open standard for modeling software. Open Source Physics - an open-source Java software project for teaching and studying physics. OpenSim - an open-source software system for biomechanical modeling. preCICE (software) - an open-source library for partitioned multi-physics simulations. Project Chrono - an open-source multi-physics simulation framework. Repast - agent-based modeling and simulation platform with versions for individual workstations and high performance computer clusters. SageMath - a system for algebra and geometry experimentation via Python. Scilab - free open-source software for numerical computation and simulation similar to MATLAB/Simulink. Sim4Life.lite - online version of Sim4Life that is free-of-charge for students for team-learning and online collaboration with classmates and teachers on limited size projects. Simantics System Dynamics – used for modelling and simulating large hierarchical models with multidimensional variables created in a traditional way with stock and flow diagrams and causal loop diagrams. SimPy - an open-source discrete-event simulation package based on Python. Simulation of Urban MObility - an open-source traffic simulation package. SOFA - an open-source framework for multi-physics simulation with an emphasis on medical simulation. SU2 code - an open-source framework for computational fluid dynamics simulation and optimal shape design. Step - an open-source two-dimensional physics simulation engine (KDE). StochSD - Stochastic and deterministic modelling and simulation based on the System Dynamics approach to Continuous System Simulation (CSS). Tortuga - an open-source software framework for discrete-event simulation in Java. UrbanSim – an open-source software to simulate land use, transportation and environmental planning.
Proprietary
Adaptive Simulations - cloud based and fully automated CFD simulations. Akselos - reduced-basis finite element-based simulation software for structural and thermal analyses. AGX Dynamics - realtime oriented multibody and multiphysics simulation engine. 20-sim - bond graph-based multi-domain simulation software. Actran - finite element-based simulation software to analyze the acoustic behavior of mechanical systems and parts. ADINA - engineering simulation software for structural, fluid, heat transfer, and multiphysics problems. ACSL and acslX - an advanced continuous simulation language. Algodoo - 2D physics simulator focused on the education market that is popular with younger users. Simcenter Amesim - a platform to analyze multi-domain, intelligent systems and predict and optimize multi-disciplinary performance. Developed by Siemens Digital Industries Software. ANSYS - engineering simulation. AnyLogic - a multi-method simulation modeling tool for business and science. Developed by The AnyLogic Company. APMonitor - a tool for dynamic simulation, validation, and optimization of multi-domain systems with interfaces to Python and MATLAB. Arena - a flowchart-based discrete event simulation software developed by Rockwell Automation Automation Studio - a fluid power, electrical and control systems design and simulation software developed by Famic Technologies Inc. Chemical WorkBench - a chemical kinetics simulation software tool developed by Kintech Lab. CircuitLogix - an electronics simulation software developed by Logic Design Inc. COMSOL Multiphysics - a predominantly finite element analysis, solver and simulation software package for various physics and engineering applications, especially coupled phenomena, or multi-physics. CONSELF - browser based CFD and FEA simulation platform. DX Studio - a suite of tools for simulation and visualization. Dymola - modeling and simulation software based on the Modelica language. DYNAMO - historically important language used for system dynamics modelling. Ecolego - a simulation software tool for creating dynamic models and performing deterministic and probabilistic simulations. EcosimPro - continuous and discrete modelling and simulation software. Enterprise Architect - a tool for simulation of UML behavioral modeling, coupled with Win32 user interface interaction. Enterprise Dynamics - a simulation software platform developed by INCONTROL Simulation Solutions. ExtendSim - simulation software for discrete event, continuous, discrete rate and agent-based simulation. FEATool Multiphysics - finite element physics and PDE simulation toolbox for MATLAB. Flexsim - discrete event simulation software. Flood Modeller - hydraulic simulation software, used to model potential flooding risk for engineering purposes. GoldSim - simulation software for system dynamics and discrete event simulation, embedded in a Monte Carlo framework. HyperWorks - multi-discipline simulation software IDA ICE - equation-based (DAE) software for building performance simulation Isaac dynamics - dynamic process simulation software for conventional and renewable power plants. iThink - system dynamics and discrete event modeling software for business strategy, public policy, and education. Developed by isee systems. JMAG - simulation software for electric device design and development. Khimera - a chemical kinetics simulation software tool developed by Kintech Lab. Lanner WITNESS - a discrete event simulation platform for modelling processes and experimentation. Lanner L-SIM Server - Java-based simulation engine for simulating BPMN2.0 based process models. MADYMO – automotive and transport safety software developed by Netherlands Organization for Applied Scientific Research Maple - a general-purpose computer algebra system developed and sold commercially by Waterloo Maple Inc. MapleSim - a multi-domain modeling and simulation tool developed by Waterloo Maple Inc. MATLAB - a programming, modeling and simulation tool developed by MathWorks. Mathematica - a computational software program based on symbolic mathematics, developed by Wolfram Research. Micro Saint Sharp - a general purpose discrete event software tool using a graphical flowchart approach and on the C# language, developed by Alion Science and Technology. ModelCenter - a framework for integration of third-party modeling and simulation tools/scripts, workflow automation, and multidisciplinary design analysis and optimization from Phoenix Integration. NEi Nastran - software for engineering simulation of stress, dynamics, and heat transfer in structures. NI Multisim - an electronic schematic capture and simulation program. Plant Simulation - plant, line and process simulation and optimization software, developed by Siemens Digital Industries Software. PLECS - a tool for system-level simulations of electrical circuits. Developed by Plexim. Project Team Builder - a project management simulator used for training and education. ProLB - a computational fluid dynamics simulation software based on the Lattice Boltzmann method. PTV Vissim - a microscopic and mesoscopic traffic flow simulation software. PSF Lab - calculates the point spread function of an optical microscope under various imaging conditions based on a rigorous vectorial model. RoboLogix - robotics simulation software developed by Logic Design Inc. Ship Simulator - a vehicle simulation computer game by VSTEP which simulates maneuvering various ships in different environments. Sim4Life - 3D computer-aided-design-based electromagnetic (EM) simulation platform: Sim4Life, which includes all elements of the now discontinued SEMCAD platform developed by Schmid and Partner Engineering AG, combines classical technical computer-aided-design tools with multi-physics solvers, computational human phantoms, medical-image-based modeling, and physiological tissue models. Simcad Pro - Process simulation software with On-The-Fly model changes while the simulation is running. Lean analysis, VR, and physics. Developed by CreateASoft, Inc. Chicago USA Simcenter STAR-CCM+ - a computational fluid dynamics based simulation software developed by Siemens Digital Industries Software. SimEvents - a part of MathWorks which adds discrete event simulation to the MATLAB/Simulink environment. SimScale - a web-based simulation platform, with CFD, FEA, and thermodynamics capabilities. SIMUL8 - software for discrete event or process based simulation. Simulations Plus - modeling and simulation software for pharmaceutical research SimulationX - modeling and simulation software based on the Modelica language. Simulink - a tool for block diagrams, electrical mechanical systems and machines from MathWorks. SRM Engine Suite - engineering tool used for simulating fuels, combustion and exhaust gas emissions in IC engine applications. STELLA - system dynamics and discrete event modeling software for business strategy, public policy, and education. Developed by isee systems. TRNSYS - software for dynamic simulation of renewable energy systems, HVAC systems, building energy use and both passive and active solar systems. UNIGINE - real-time 3D visualization SDK for simulation and training. Supports C++ and C# programming languages. Unreal Engine - immersive virtual-reality training simulation software. Vensim - system dynamics and continuous simulation software for business and public policy applications. VisSim - system simulation and optional C-code generation of electrical, process, control, bio-medical, mechanical and UML State chart systems.