Comparison of system dynamics software

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This is a comparison of various aspects of software offering system dynamics features:

Due to concerns over commercial postings on the system dynamics main topic, commercial hyperlinks are specifically NOT active on this list.

Table of system dynamics software[edit]

Sortable table
Package name Licensing Implementation language Last update (year) More info
AMESim Proprietary, commercial ? 2017 Distributed by Siemens.
Analytica Proprietary, commercial, free limited version C++ 2018 Supports system dynamics, Monte Carlo simulation for uncertainty, array abstraction for handling multidimensional data, linear and non-linear optimization. Uses influence diagrams to define, navigate, and document models.
AnyLogic Proprietary, commercial, free Personal Learning Edition (PLE) for education, formal or not Java 2017 Supports system dynamics, agent based and discrete event modeling, allows making hybrid models.
ASCEND Free, GNU General Public License (GPL) C 2012 For solving small to very large mathematical models, systems of non-linear equations, linear and nonlinear optimisation problems, dynamic systems expressed as differential-algebraic equations.
Berkeley Madonna Proprietary, shareware C++, Java 2016 Developed on Berkeley campus under sponsorship of NSF and NIH, used by academic and commercial institutions to build mathematical models for research and teaching. Solves ordinary differential equations (initial conditions and boundary value problems), difference equations (initial conditions and boundary value problems), multi-dimensional transcendental algebraic equation roots, discrete simulations using conveyors, ovens, and queues. Suitable for large-scale systems, boundary value problems, Monte Carlo models, curve fitting, root finding, batch processes, parameter plots, stiff systems, etc.
DYNAMO Proprietary, no longer distributed commercially AED, Pascal 1986 Historic DYNAMO models are often available at the MIT system dynamics website. DYNAMO software for microcomputers may be available via eBay or other resale sites.
GoldSim Proprietary, commercial C++ 2016 Differs from traditional system dynamics approaches in that 1) it puts much greater emphasis on probabilistic simulation techniques to support representation of uncertain and/or stochastic systems; and 2) it provides a wide variety of specialized model objects (beyond stocks, flows and converters) in order to make models less abstract (and hence more transparent) and help represent processes and events that cannot easily be represented using a traditional system dynamics approach. These differences are due to the fact that GoldSim is primarily used for engineering and scientific applications where quantitative probabilistic predictions of future performance are required.
iThink Proprietary, commercial C++, Javascript 2018 System dynamics and discrete event modeling with some agent-based capabilities. Drag and drop user interface builder allows simulations to be published online. Includes multilevel hierarchical models, reusable modules, multidimensional arrays, optimization, and Monte Carlo analysis.
MapleSim Proprietary, commercial Java (GUI), C, Maple (engine) 2017 Modelica-based system-level modeling tool. Leverages symbolic computing via tight integration with Maple.
NetLogo Free, GPLv2 Java, Scala 2015 Agent-based modeling environment in LOGO; supports system dynamics models as a secondary feature.
Powersim Studio Proprietary, commercial, free limited version C++ 2018 Supports system dynamics; building graphical diagrams using stocks and flow, including delays and feedback for non-linear models. Supports units, multi-dimensions running scenario simulations and Monte Carlo simulations.
Simantics System Dynamics Free, Eclipse Public License (EPL) Java, Modelica 2015 Free and open source system dynamics modelling software with stock and flow modelling, hierarchical models and array variables.
Simulink Proprietary, commercial ? 2015 Tight integration with MATLAB
Stella Proprietary, commercial, limited free online version C++, Javascript 2018 System dynamics and discrete event modeling with some agent-based capabilities. Drag and drop user interface builder in Architect versions allows simulations to be published online. Includes multilevel hierarchical models, reusable modules, multidimensional arrays, optimization, and Monte Carlo analysis.
Vensim Proprietary, commercial, free Personal Learning Edition (PLE) for education and personal use C 2017 Continuous simulation with stocks and flows, some discrete delay and discrete event functionality. Flexible array syntax with mapping among dimensions. Extensive support for time series data import and export, with calibration optimization and Markov chain Monte Carlo for estimation. Monte Carlo and other sensitivity simulation methods. Graphical model construction and interfaces. External functions and compiled simulation.
VisSim Proprietary, commercial C 2011 Accredited education institutions are allowed to site license VisSim v3.0 for free. The latest versions, and add-ons, are available to students and academic institutions at reduced pricing. A read-only version of the software, VisSim Viewer is available for free and provides a way for unlicensed users to run VisSim models.
Wolfram SystemModeler Proprietary, commercial 2018 Supports system dynamics, discrete event modeling, external C-functions, hierarchical models, and the Modelica modeling language with tight integration with Mathematica. Models can be exported to run as standalone applications for users without SystemModeler.
L.^ Graphing library MxGraph is licensed separately under paid commercial licence

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