GemPy is an open-source, Python-based 3-D structural geological modeling software, which allows the implicit (i.e. automatic) creation of complex geological models from interface and orientation data. It also offers support for stochastic modeling to address parameter and model uncertainties.
OpenMC Monte Carlo Code
Geant4 toolkit for the simulation of the passage of particles through matter - NIM A 506 (2003) 250-303
VeraGrid, a cross-platform power systems software written in Python with user interface, used in academia and industry.
The LuxAlgo ecosystem as MCP tools: free and keyless.
Know your odds before you pay the fee: open-source Monte Carlo simulation of prop-firm challenges over each firm's exact ruleset. Pass probability, expected attempts and cost, EV, optimal risk sizing. Engine, CLI, and MCP server. Deterministic, zero telemetry. By LuxAlgo.