Geant4 toolkit for the simulation of the passage of particles through matter - NIM A 506 (2003) 250-303

Molecular dynamics and Monte Carlo soft matter simulation on GPUs.

Powerful, efficient particle trajectory analysis in scientific Python.

Toolkit for Monte Carlo simulation of ionizing radiation — Trousse d'outils logiciels pour la simulation Monte Carlo du rayonnement ionisant

Companion code for "Modern Computational Finance: AAD and Parallel Simulations" (Antoine Savine, Wiley, 2018)

A CAD file interface for GEANT4

A program with an implemented Monte Carlo Ray Tracer algorithm for global illumination of a virtual 3D scene.

Evoplex is a fast, robust and extensible platform for developing agent-based models and multi-agent systems on networks. It's available for Windows, Linux and macOS.

Header only framework for data analysis in massively parallel platforms.

Solvers/annealers for simulated quantum annealing on CPU and CUDA(NVIDIA GPU).

Monte Carlo and Molecular Dynamics Simulation Package

Geant4 Example Application with Rich features and Small footprints

GOMC - GPU Optimized Monte Carlo is a parallel molecular simulation code designed for high-performance simulation of large systems

CRPropa is a public astrophysical simulation framework for propagating extraterrestrial ultra-high energy particles. https://crpropa.github.io/CRPropa3/

A Framework for Metropolis Monte Carlo Simulation of Molecular Systems

ENRICO: Exascale Nuclear Reactor Investigative COde

The GENIE Generator is a leading simulation tool for neutrino experiments, featuring a modular framework with advanced physics, BSM channels, and tuned models from global data analysis. It supports all neutrinos, targets, and energies (MeV–PeV), with tools for flux, geometry, event generation, and reweighting.

NCrystal : a library for thermal neutron transport in crystals and other materials

NPTool, a ROOT/Geant4 based framework for Nuclear Physics

Predict stock market pricing over 180 minutes using Black-Scholes stochastic modeling and parallel Monte-Carlo simulations.