This is a list of notable discrete-event simulation software.
Commercial Software Publisher Description Last updatedAnyLogicThe AnyLogic CompanyA general purpose multimethod modeling tool. Combines agent-based, system dynamics, and discrete event modeling.Arena (software)Rockwell AutomationA discrete event simulation program that also allows modeling of continuous processes.Care pathway simulatorSAASoft Ltd.A discrete event simulation program specifically designed for service industries e.g. healthcare.UnknownEnterprise DynamicsINCONTROL Simulation SolutionsA simulation software platform to model and analyze virtually any manufacturing, material handling and logistics challenge.ExtendSimImagine That Inc.A general purpose, multi-method simulation and analysis tool that also includes discrete rate and reliability block diagramming components.DELMIADassault SystemesPart of the 3DEXPERIENCE platform of Dassault SystemesFlexSimFlexSim Software Products, Inc.A discrete event simulation software with a drag-and-drop interface for modeling simulations in 3D.GoldSimGoldSim Technology Group LLCCombines system dynamics with aspects of discrete event simulation, embedded in a Monte Carlo framework.GPSSVariousA discrete event simulation language. Different implementations are available through vendors.VariousMicro Saint Sharp Alion ScienceA general purpose discrete event modeling tool that uses a drag and drop interface and the C# programming language.MS4 Modeling Environment RTSync CorporationA general purpose DEVS methodology based software environment for discrete event and hybrid models.Plant SimulationSiemens PLM SoftwareSoftware that enables the simulation and optimization of production systems and processes.Simcad ProCreateASoft, IncDiscrete event simulation software. On-The-Fly model changes while the simulation is running. Visual interface with no coding environment. Includes VR and Physics engine. SimEventsMathWorksAdds discrete event simulation to the MATLAB/Simulink environment.SIMUL8SIMUL8 CorporationObject-based simulation softwareVisual ComponentsVisual Components OyThe next generation of 3D manufacturing simulation technology. Designed for manufacturing professionals and built on a powerful, flexible, and scalable platform.VisualSimMirabilis Design Inc.Model-based system architecture exploration of electronics, embedded software and semiconductors based on timing, power consumption and functionality
Open source Name Language Type Last updated License Description CPN Tools BETAApplication (v4.0.1)"CPN Tools - Whats New?" GPLv2 A tool to analyse logistics/queuing models in all types of applications. DESMO-J Java Library (v2.5.1c)"DESMO-J version history" Apache 2.0 A framework for discrete-event simulation in Java, supporting hybrid event/process models and providing animation in 2D and 3D.gem5C++ApplicationDecember 31, 2025 (v25.1.0.0)BSDThe gem5 simulator is a modular platform for computer-system architecture research, encompassing system-level architecture as well as processor microarchitecture.JaamSimJavaApplicationFebruary 24, 2026 (v.2026-01)Apache 2.0JaamSim is a fast and scalable discrete-event simulation software that includes a drag-and-drop user interface, interactive 3D graphics, input and output processing and model development tools and editors. "Out of all the OS DES projects we reviewed, JaamSim is the one with the most impressive 3D user interface that can compete against COTS DES software. (...) The fact that a non-expert user can just download and test the software in a few minutes is something that is a scarce attribute in OS projects and especially in the DES domain. (...) It is the only tool we found that is clearly industry driven (...) and this may have led to more consistent motivation and funding." "JaamSim provides everything which is necessary to model typical planning tasks in production and logistics and proves as a real alternative to commercial DES tools." Ptolemy II Java Library (v10.0.1)"Ptolemy II Homepage" BSD A software framework supporting experimentation with actor-oriented design. SIM.JS JavaScript Library (v0.26)"SIM.JS - code.google.com changes" LGPL SIM.JS is a general-purpose Discrete Event Simulation library written entirely in JavaScript. Runs in browser and a GUI-based modeling tool is supported. SimPy Python Library (4.1.1)"SimPy History & Change Log" MIT SimPy is a process-based discrete-event simulation framework based on standard Python."SimPy Documentation"SimulaSimulaLanguageA programming language designed specifically for simulation. SystemC C++ Library (v2.3.3)"accellera" Apache 2.0 A set of C++ classes and macros which provide an event-driven simulation kernel.
See also List of computer-aided engineering software
Further reading
References