Open Source Discrete Event Simulation

DE-Sim a Python-based object-oriented discrete-event simulator for modeling complex systems. DE-Sim is an open-source, Python-based object-oriented discrete-event simulation DES tool that makes it easy to use large, heterogeneous datasets and high-level data science tools such as NumPy, Scipy, pandas, and SQLAlchemy to build and simulate complex computational models.

A fast discrete-event multiagent simulation library core in Java, designed to be the foundation for large custom-purpose Java simulations. PowerDEVS An integrated tool for hybrid systems modeling and simulation based on the DEVS formalism. SimPy Python An open source process-oriented discrete event simulation package implemented in Python.

SimPy is a process-based discrete-event simulation framework based on standard Python. 25 Simula Simula Language June 1, 1967 A programming language designed specifically for simulation. SNA C Library June 8, 2025 v1.0.5 26 MIT A lightweight open-source library for building Discrete Event Simulations DES in C and .NET. 27

JaamSim is a free, open source discrete-event simulation software which includes a drag-and-drop user interface interactive 3D graphics input and output processing model development tools and editors Download Free Upgrade to Pro. Available for Windows, MacOS, and Linux

PowerDEVS is an open-source simulation platform that allows users to create discrete-event and continuous simulations using a graphical interface. It features an intuitive drag-and-drop interface, a library of pre-built simulation components, and support for various simulation modeling techniques such as Petri nets and System Dynamics.

DE-Sim is an open-source, Python-based object-oriented discrete-event simulation DES tool that makes it easy to use large, heterogeneous datasets and high-level data science tools such as NumPy, Scipy, pandas, and SQLAlchemy to build and simulate complex computational models. Similar to Simula, DE-Sim models are implemented by defining logical process objects which read the values of a set

OpenSIMPLY is an open source project for simulation modeling in Delphi, Lazarus, Free Pascal. Download OpenSIMPLY at opensimply.org The project is free computer simulation software based on discrete-event approach. OpenSIMPLY is a science software with very high simulation performance. So, the simulation results can be obtained much faster.

Free simulation software OpenSIMPLY is an open source discrete-event simulation software. It is free simulation software with no restrictions on number of simulation events. It runs on Windows and Linux on 32-bit and 64-bit platforms as a graphical or terminal application. OpenSIMPLY is a modeling software with very high simulation performance.

Furthermore, such existing papers fail to establish a proper assessment of these type of tools. In this regard, this paper proposes a study in which several freeware and open source discrete-event general purpose simulation tools were selected and compared, in order to propose a ranking based on the tools' popularity, considering several

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