Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors.

Brian is a free, open source simulator for spiking neural networks.

FreeFEM source code

Agent-based modeling framework in Julia

A blazing-fast Ethereum sandbox that lets developers orchestrate event-driven simulations.

A framework for modeling and simulating dynamical systems

NaveGo: an open-source MATLAB/GNU Octave toolbox for processing integrated navigation systems and performing inertial sensors analysis.

Blockchain simulation framework with Docker and Python.

A 3D electromagnetic FDTD simulator written in Python with optional GPU support

State-of-the-art Framework 🏗 for Cloud Computing ⛅️ Simulation: a modern, full-featured, easier-to-use, highly extensible 🧩, faster 🚀 and more accurate ☕️ Java 17+ tool for cloud computing research 🎓. Examples: https://github.com/cloudsimplus/cloudsimplus-examples

Main repository for developing the 1.x versions of GAMA

Veins - The open source vehicular network simulation framework.

Python Block-Model Simulator. An alternative to simulink in python.

A Python Library for Conway's Game of Life

Biologically based neural network simulations of the brain written in Go with a 3D GUI powered by Cogent Core.

PureEdgeSim: A simulation framework for performance evaluation of cloud, fog, and pure edge computing environments.

MiniCPS: a framework for Cyber-Physical Systems real-time simulation, built on top of mininet

Simulator optimized for large scale neural network simulations.

PhysiCell: Scientist end users should use latest release! Developers please fork the development branch and submit PRs to the dev branch. Thanks!