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Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

Spike, a RISC-V ISA Simulator

Wave Energy Converter Simulator (WEC-Sim), an open-source code for simulating wave energy converters.

Mars Simulation Project Official Codebase

Platform for starship simulator controls

PK-Sim® is a comprehensive software tool for whole-body physiologically based pharmacokinetic modeling

Robust, intersection-free, simulations of rigid bodies.

Next-generation Spaceship Controls

A virtual AI-based pit crew for Sim Racing. Use the latest GPT technology to create a real life like experience when out on the track.

SPEAR: A Simulator for Photorealistic Embodied AI Research

Stock AI Trader: 1-stop platform for learning, sim & live trading. Covers: stock basics, strategies, LLMs, factor mining, ML/DL/RL, graph nets, HFT, C++ deploy & JoinQuant code. 股票AI操盘手：一站式学习、模拟、实盘平台。涵盖：股票基础、策略、大模型、因子挖掘、机器学习/深度学习/强化学习、图网络、高频交易、C++部署及聚宽代码。

The visual layer for Git in your own repos: simulate, record, replay, audit, and share entire Git workflows, wherever you or your agents run them.

Unified framework for robot learning with multi-physics/renderer support

Want to support. See https://github.com/ChrGri/DIY-Sim-Racing-FFB-Pedal-Mechanical-Design?tab=readme-ov-file#support-the-team

腾讯自动驾驶仿真系统 TAD Sim (Tencent Autonomous Driving Simulation) 单机版是腾讯自动驾驶以建立更加安全和高效的自动驾驶测试工具为目标, 为自动驾驶系统研发和验证而量身定做的跨平台分布式系统.

This repository includes the simulation of a vehicle with an Ackermann drive system in ROS2 Humble & Jazzy and Gazebo Sim Harmonic, utilizing the Nav2 package for autonomous navigation.

Torch-native, batchable, atomistic simulations.

Isaac Simulation MCP Extension and Server

A lightweight, configurable, and real-time simulator designed to mimic the behavior of vLLM without the need for GPUs or running actual heavy models.

[ICRA 2026] NavDP: Learning Sim-to-Real Navigation Diffusion Policy with Privileged Information Guidance

NVIDIA Isaac Sim™ is an open-source application on NVIDIA Omniverse for developing, simulating, and testing AI-driven robots in realistic virtual environments.

专为已有 Giffgaff 和 Simyo 号码的用户设计的现代化 eSIM 管理工具集，支持将物理 SIM 卡转换为 eSIM、设备更换和二维码生成。(A modern set of eSIM management tools designed specifically for users who already have Giffgaff and Simyo numbers, offering support for converting physical SIM cards to eSIMs, device replacements, and QR code generation.)

Isaac Lab - Arena is a robotics simulation framework that enhances NVIDIA Isaac Lab by providing a composable, scalable system for creating diverse simulation environments and evaluating robot learning policies. The framework enables developers to rapidly prototype and test robotic tasks with various robot embodiments, objects, and environments.

PACE: A systematic approach for sim-to-real transfer of legged robots, identifying actuator and joint dynamics with standard joint encoders.

Real-time GPS navigation & routing for ETS2 and ATS. Works on Desktop, Android, and Browser via live telemetry.

A high-fidelity, open-source robotics simulator integrating Unreal Engine's photorealistic rendering with MuJoCo's precision physics.

The `npx serve` of Apple Simulators.

🎉 面向Debian蜂窝CPE、随身WiFi、软路由类设备的 SIM/eSIM、蜂窝网络、短信、DDNS和系统状态管理系统。

In-hand reorientation RL: PPO training and sim-to-real deployment for the Wuji Hand, built on mjlab.