Top SIMULATION GitHub Repositories & Tools (2026)

Comprehensive, GPU accelerated framework for developing universal virtual quantum processors

An end-to-end, GPU-accelerated, and modular platform for building generalized Embodied Intelligence.

The software ReciPro makes various crystallographic calculations, visualizes a crystal structure, simulates diffraction patterns and TEM image, indexes diffraction spots, plots stereographic projection, and so on.

Set of tutorials to practice robotics concepts with Webots and Python

Native, stable iOS location simulation utility app for macOS.

Multiphysics Object Oriented Simulation Environment

A C++ library for simulating Rocket League games at maximum efficiency

NeqSim is a library for calculation of fluid behavior, phase equilibrium and process simulation

BioDynaMo is a high-performance and modular, agent-based simulation platform.

Experiment-independent toolkit for (charged) particle track reconstruction in (high energy) physics experiments implemented in modern C++

Collaborative Datacenter Simulation and Exploration for Everybody

Warteschlangensimulator is a free, platform independent, discrete-event, stochastic simulator which allows to model queueing systems in form of flowcharts.

An open source alternative to Pax Historia

Lightweight cross-platform RF circuit simulator — DC, S-parameters, harmonic balance, loadpull. Not a SPICE simulator.

Open-source OpenAPI mock server with cloud hosting and local modes for development, testing, and CI. Generates realistic API responses from specs with latency simulation, error injection, proxy fallback, and request validation. Validated against 2,200+ real-world OpenAPI specs.

Collaborative Multiphysics Cosimulator For Space Missions 🌎🚀🌚

Ruby interface to IEEE 1364-2005 Verilog VPI

Open Football football simulation engine (like Football Manager) written in pure Rust

Multi-modal constructive solid geometry kernel in Rust