simulation

matlab-simulink-energy-lab

+161

Run reduced-order battery, thermal, converter and BESS control models with transparent equations and repeatable testing.

robosimstudio

+64

An open interactive toolkit that accelerates human and agentic physics-based Real2Sim of Robot Manipulation Tasks

fieldcraft

+48

One open-source modeler for structures, heat and fluids, built from scratch in pure Rust: parametric part in, verified results out. Automatic all-hex and tet meshing, our own nonlinear implicit and explicit FEA, heat transfer and lattice Boltzmann CFD — every result checked against theory. For engineers and AI agents alike. Free, forever.

valdrada

+44

Valdrada is a real-time digital twin of New York City built from public data.

NVIDIA/skills

+85

Agent Skills for NVIDIA products — install into Claude Code, Codex, and other coding agents to run Physical AI, robotics, simulation, CUDA, and RAG workflows end to end.

velxio

+69

Emulate Arduino, ESP32 & Raspberry Pi. in your browser. Write code, compile, and run on 19 real boards — Arduino Uno, ESP32, ESP32-C3, Raspberry Pi Pico, Raspberry Pi 3, and more. No hardware, no cloud, no limits.. Discord: https://discord.gg/3mARjJrh4E

embodied-first-exam

+37

The first exam for code agents in the physical world: frozen robot tasks from many benchmark suites, each answered with a program and verified in a separate sandbox. Runs on Harbor.

machine-skill

+69

Describe any machine in one line. Claude builds a photoreal, physics based, interactive simulation of it in one HTML file, plus the film to post it. An open source Claude Code skill.

OpenRCT2

+32

An open source re-implementation of RollerCoaster Tycoon 2 🎢