Open-source simulation software
1601 open-source libraries, tools and applications tagged simulation, ranked by how closely simulation is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
1601 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Kokkos Kokkos Core is a C++ programming model providing abstractions for parallel execution and memory management to write performance-portable ap… | 98 | 2707 | stable |
| dreamzero0/dreamzero DreamZero is NVIDIA's World Action Model (WAM) that jointly predicts future video and actions from a pretrained video diffusion backbone, e… | 48 | 2700 | active |
| princeton-vl/DROID-SLAM DROID-SLAM is a deep learning-based visual SLAM system for monocular, stereo, and RGB-D cameras that estimates camera trajectory and dense … | 37 | 2699 | active |
| Tencent-Hunyuan/HY-World-2.0 HY-World 2.0 is Tencent Hunyuan's open-source multi-modal world model framework that reconstructs, generates, and simulates 3D worlds from … | 55 | 2680 | active |
| LAM LHM is a PyTorch-based large reconstruction model that reconstructs high-fidelity animatable 3D human avatars from a single image in second… | 49 | 2679 | active |
| open-gigaai/giga-brain-0 GigaBrain-0/0.7 is an open-source vision-language-action (VLA) model family for generalist embodied agents, powered by world models and a t… | 60 | 2659 | active |
| google-coral/coralnpu Coral NPU is an open-source neural processing unit (NPU) hardware IP core from Google Research, built on the 32-bit RISC-V ISA with matrix,… | 72 | 2604 | active |
| nikmcfly/MiroFish-Offline MiroFish-Offline is a fully local, English-language fork of MiroFish, a multi-agent swarm intelligence engine that simulates public opinion… | 44 | 2538 | active |
| Roboto Origin A fully open-source DIY humanoid robot project (ROBOTO_ORIGIN) that can walk and run, including all hardware designs, electronics, training… | 60 | 2537 | active |
| KsanaDock/Microverse Microverse is a god-simulation sandbox game built on Godot 4 that implements a multi-agent AI social simulation. AI characters have indepen… | 48 | 2500 | active |
| wgsxm/PartCrafter PartCrafter is a structured 3D generative model that jointly generates multiple semantically meaningful 3D mesh parts and objects from a si… | 50 | 2485 | active |
| sanderland/katrain KaTrain is a cross-platform desktop application for playing and analyzing the game of Go (Baduk/Weiqi) with AI feedback powered by KataGo. … | 89 | 2474 | active |
| hku-mars/r3live R3LIVE is a tightly-coupled LiDAR-Inertial-Visual sensor fusion framework for robust, real-time state estimation and RGB-colored 3D mapping… | 44 | 2473 | active |
| crownengine/crown Crown is a complete, cross-platform, open-source game engine written in C++ with Lua scripting, featuring a full level editor, asset pipeli… | 100 | 2458 | active |
| nv-tlabs/3dgrut NVIDIA's official implementations of 3D Gaussian Ray Tracing (3DGRT) and 3D Gaussian Unscented Transform (3DGUT), which render volumetric G… | 68 | 2441 | active |
| learnhouse/learnhouse LearnHouse is a next-generation open-source learning management system (LMS) for creating, sharing, and selling educational content. It com… | 100 | 2404 | active |
| TencentARC/Pixal3D Pixal3D is a research codebase for generating high-fidelity 3D assets from a single image using a pixel-aligned generation paradigm that ba… | 56 | 2383 | active |
| OpenEXR Open Shading Language (OSL) is a small, C-like programmable shading language with a compiler and runtime library for advanced production re… | 93 | 2343 | stable |
| SkyworkAI/Matrix-Game Matrix-Game is Skywork AI's open-source series of interactive world foundation models that generate real-time, streaming video in response … | 50 | 2342 | active |
| barter-rs/barter-rs Barter is an open-source Rust framework and ecosystem of crates for building high-performance, event-driven algorithmic trading systems sup… | 93 | 2332 | active |
| nv-tlabs/lyra Project Lyra is NVIDIA's open series of generative 3D world models, including Lyra 1.0 for feed-forward 3D/4D scene generation from a singl… | 56 | 2317 | active |
| apache/mahout Apache Mahout is an Apache Software Foundation project providing Qumat, a high-level Python library for quantum computing with a unified AP… | 84 | 2310 | active |
| NVlabs/nvdiffrec nvdiffrec is NVIDIA's official implementation of a CVPR 2022 oral paper that jointly optimizes triangular 3D meshes, PBR materials, and lig… | 72 | 2298 | stable |
| ashawkey/stable-dreamfusion A PyTorch implementation of Dreamfusion that generates 3D models from text prompts or images using NeRF combined with Stable Diffusion guid… | 23 | 8865 | maintenance |
| Nethereum Nethereum is the .NET integration platform for Ethereum and EVM-compatible blockchains, offering 130+ NuGet packages covering RPC access, s… | 82 | 2260 | active |
| bluealloy/revm Revm is a highly efficient and stable Rust implementation of the Ethereum Virtual Machine (EVM). It serves both as a transaction executor f… | 94 | 2248 | stable |
| mandiant/flare-fakenet-ng FakeNet-NG is a dynamic network analysis tool that intercepts and redirects network traffic while simulating legitimate network services. I… | 60 | 2215 | active |
| yyfz/Pi3 Pi3 (π³) is a feed-forward neural network for visual geometry reconstruction that eliminates the need for a fixed reference view, using a p… | 56 | 2188 | active |
| 3DTopia/LGM LGM is the official PyTorch implementation of an ECCV 2024 Oral paper that generates high-resolution 3D models from text prompts or single-… | 26 | 2118 | active |
| eloialonso/diamond DIAMOND is a Python implementation of a reinforcement learning agent trained entirely inside a diffusion-based world model, presented as a … | 25 | 2118 | active |
| Rand Rand is a set of Rust crates providing random number generation, including a standard RNG trait, fast pseudo-random and cryptographically-s… | 96 | 2085 | stable |
| zju3dv/GVHMR GVHMR is a research codebase implementing the SIGGRAPH Asia 2024 paper 'World-Grounded Human Motion Recovery via Gravity-View Coordinates'.… | 66 | 2059 | active |
| DeePMD-kit DeePMD-kit is a deep learning package for building many-body potential energy representations and running molecular dynamics simulations. I… | 92 | 2055 | stable |
| Epsilon Epsilon is a high-performance operating system for the NumWorks graphing calculator, written in C++, with eleven apps covering the high sch… | 61 | 1957 | active |
| Robbyant/lingbot-va LingBot-VA is an autoregressive diffusion framework that unifies video world modeling and robot policy learning in a single interleaved vid… | 53 | 1918 | active |
| PRIME-RL/SimpleVLA-RL SimpleVLA-RL is an open-source reinforcement learning framework for training Vision-Language-Action (VLA) models for robotic manipulation, … | 43 | 1864 | active |
| ConsistentlyInconsistentYT/Pixeltovoxelprojector A Python tool that projects the motion of pixels onto a voxel representation, converting 2D pixel movement into 3D voxel space. It is a pop… | 39 | 1860 | active |
| microsoft/mattergen MatterGen is Microsoft's official implementation of a generative diffusion model for designing inorganic crystalline materials across the p… | 65 | 1852 | active |
| VAST-AI-Research/TripoSG TripoSG is an open-source image-to-3D generation foundation model that produces high-fidelity 3D meshes from single images using large-scal… | 24 | 1815 | active |
| thu-ml/RoboticsDiffusionTransformer RDT-1B is a 1B-parameter diffusion foundation model for robot bimanual manipulation, pre-trained on 1M+ multi-robot episodes to predict rob… | 48 | 1806 | active |
| chynl/snake A Python application that plays the game of Snake using two AI approaches: a graph-search algorithm based on Hamiltonian paths and shortest… | 64 | 1796 | active |
| orx/orx Orx is a portable, data-driven 2D/2.5D game engine written in C with C/C++ APIs. It emphasizes configuration-driven object creation, render… | 80 | 1778 | stable |
| chenjd/Render-Crowd-Of-Animated-Characters A Unity library that bakes skeletal animation data into an animation map texture and uses GPU instancing to render tens of thousands of ani… | 32 | 1777 | active |
| OSS CAD Suite OSS CAD Suite is a multi-platform binary distribution of open-source digital logic design and verification tools, including Yosys, GHDL, AB… | 94 | 1745 | active |
| MightyPirates/OpenComputers OpenComputers is a Minecraft mod that adds programmable computers, robots, and peripherals to the game, powered by a persistent Lua 5.2 run… | 10 | 1743 | active |
| quint-co/quint Quint is an executable specification language based on the Temporal Logic of Actions (TLA+), designed for modeling and verifying the behavi… | 87 | 1730 | active |
| AvaLovelace1/BrickGPT BrickGPT is the official implementation of an ICCV 2025 Best Paper approach that generates physically stable, buildable toy brick (LEGO) mo… | 54 | 1726 | active |
| One-2-3-45/One-2-3-45 One-2-3-45 is the official PyTorch implementation of a NeurIPS 2023 paper that converts any single image into a full 360-degree 3D textured… | 29 | 1717 | stable |
| NVlabs/InstantSplat InstantSplat is a research framework for photorealistic 3D scene reconstruction from extremely sparse image views using Gaussian Splatting,… | 30 | 1704 | active |
| hashintel/hash HASH is an open-source, multi-tenant platform for building self-maintaining knowledge graphs and process graphs, powered by the hgres graph… | 97 | 1675 | active |
| MDAnalysis/mdanalysis MDAnalysis is an open-source Python library for analyzing molecular dynamics simulations of many-body systems at the molecular scale. It re… | 89 | 1667 | stable |
| LiangliangNan/Easy3D Easy3D is a lightweight C++ library (with Python bindings) for processing and rendering 3D data such as point clouds, polygonal surface mes… | 75 | 1657 | active |
| NVIDIAGameWorks/rtx-remix NVIDIA RTX Remix is an open-source platform for remastering classic DirectX 8/9 games with RTX path tracing, DLSS, and AI-upgraded textures… | 75 | 1652 | active |
| symforce-org/symforce SymForce is a Python/C++ library for fast symbolic computation, code generation, and tangent-space nonlinear optimization aimed at robotics… | 89 | 1646 | active |
| OpenSAGE/OpenSAGE OpenSAGE is a free, open-source re-implementation of the SAGE 3D real-time strategy engine used in Command & Conquer: Generals and other EA… | 52 | 1640 | active |
| guochengqian/Magic123 Magic123 is the official PyTorch implementation of an ICLR 2024 paper that generates high-quality textured 3D meshes from a single unposed … | 84 | 1623 | stable |
| open-gigaai/giga-world-0 GigaWorld-0 is a unified world model framework that acts as a data engine for Vision-Language-Action (VLA) learning in embodied AI. It comb… | 38 | 1616 | active |
| attify/firmware-analysis-toolkit Firmware Analysis Toolkit (FAT) is a Python-based automation wrapper around Firmadyne that emulates IoT and embedded device firmware images… | 99 | 1615 | active |
| autonomousvision/transfuser Official PyTorch implementation of TransFuser, a transformer-based multi-modal sensor fusion model for end-to-end autonomous driving, publi… | 75 | 1606 | stable |
| Tencent-Hunyuan/HY-WorldPlay HY-WorldPlay (HY-World 1.5) is Tencent Hunyuan's open-source framework for interactive 3D world modeling, generating explorable 3D scenes f… | 52 | 1604 | active |
| jmorton06/Lumos Lumos is a cross-platform 2D and 3D game engine written in C++17, supporting Vulkan and OpenGL rendering with an ECS architecture and ImGui… | 64 | 1598 | active |
| zju3dv/EasyVolcap EasyVolcap is a PyTorch-based library for accelerating neural volumetric video research, covering volumetric video capture, reconstruction,… | 69 | 1594 | active |
| facebookresearch/fast3r Fast3R is the official PyTorch implementation of a CVPR 2025 model from Meta FAIR that reconstructs 3D scenes and estimates camera poses fr… | 10 | 1592 | active |
| Equim-chan/Mortal Mortal is a free and open-source AI for Japanese (riichi) mahjong powered by deep reinforcement learning, written in Rust with a Python int… | 48 | 1580 | active |
| google/GNM GNM is an open ecosystem of parametric statistical human models and perception stacks from Google, starting with GNM Head, a high-fidelity … | 60 | 1576 | active |
| ergogen/ergogen Ergogen is a JavaScript-based generator for ergonomic keyboard layouts. From a declarative config file it produces 2D layouts, plates, case… | 51 | 1575 | active |
| PolyMeilex/Neothesia Neothesia is a cross-platform MIDI visualizer built in Rust that displays notes from MIDI files as colorful falling blocks on a virtual pia… | 91 | 1573 | active |
| yuantianyuan01/FastWAM Official PyTorch codebase for Fast-WAM, a World Action Model for robot manipulation that skips test-time future video imagination and gener… | 56 | 1547 | active |
| Leela Zero Leela Zero is an open-source Go engine that reimplements AlphaGo Zero, combining Monte Carlo Tree Search with a deep residual convolutional… | 23 | 5591 | maintenance |
| luciddreamer-cvlab/LucidDreamer LucidDreamer is the official implementation of a research method that generates 3D Gaussian Splatting scenes from text prompts, published i… | 66 | 1528 | active |
| geomstats/geomstats Geomstats is an open-source Python package for computations, statistics, and machine learning on manifolds with geometric structures. It pr… | 67 | 1523 | active |
| mattzh72/articraft Articraft is a research tool that generates articulated 3D assets from text prompts or reference images by having an LLM write Python using… | 62 | 1519 | active |
| hustvl/DiffusionDrive DiffusionDrive is a truncated diffusion model for real-time end-to-end autonomous driving, released as the official PyTorch implementation … | 41 | 1513 | active |
| andyhuo520/aetherviz-master AetherViz Master is an AI-powered interactive educational visualization tool that turns any teaching topic into an immersive 3D interactive… | 47 | 1499 | active |
| CUT3R/CUT3R CUT3R is the official PyTorch implementation of 'Continuous 3D Perception Model with Persistent State' (CVPR 2025 Oral), a stateful recurre… | 35 | 1499 | active |
| pegasusTrader/PandoraTrader PandoraTrader is a C++ high-frequency quantitative trading platform for futures markets, supporting multiple broker APIs such as CTP, QDP, … | 50 | 1474 | active |
| YanjieZe/3D-Diffusion-Policy 3D Diffusion Policy (DP3) is a visual imitation learning algorithm that combines compact 3D point cloud representations with diffusion poli… | 43 | 1453 | active |
| Melledy/LunarCore LunarCore is a Java-based game server reimplementation for a certain turn-based anime game (Honkai: Star Rail), supporting version 4.2.0 fo… | 64 | 1429 | active |
| NVlabs/BundleSDF BundleSDF is a CVPR 2023 research implementation from NVIDIA for near real-time 6-DoF pose tracking of unknown rigid objects from monocular… | 62 | 1417 | stable |
| Terrain Diffusion Terrain Diffusion is a Python framework that uses diffusion models as a learned, deterministic replacement for Perlin noise, generating inf… | 58 | 1414 | active |
| open-gigaai/giga-world-policy GigaWorld-Policy is a World Action Model (WAM) for robot policy learning that jointly models actions and future visual observations during … | 53 | 1406 | active |
| davideberly/GeometricTools The Geometric Tools Engine (GTE) is a C++14 collection of source code for computing in mathematics, geometry, graphics, image analysis, and… | 76 | 1386 | active |
| hustvl/VAD VAD is an end-to-end autonomous driving framework that models the driving scene as a fully vectorized representation of agents and map elem… | 57 | 1383 | active |
| Goal-Driven Autonomous Exploration (DRL Robot Navigation) A ROS Gazebo simulation project that trains a mobile robot to navigate to random goals while avoiding obstacles using a TD3 deep reinforcem… | 54 | 1374 | active |
| mega-sam/mega-sam MegaSaM is a research codebase implementing a deep visual SLAM system that estimates camera parameters and consistent depth maps from casua… | 45 | 1367 | active |
| PKU-VCL-3DV/SLAM3R SLAM3R is a real-time dense 3D scene reconstruction system that regresses 3D points from monocular RGB video using feed-forward neural netw… | 39 | 1366 | active |
| Latios Framework The Latios Framework is a suite of high-performance, low-level APIs and feature modules that extend and complement Unity's ECS (DOTS) for g… | 97 | 1360 | active |
| REDRIVER2 A complete open-source C reimplementation of the PlayStation game Driver 2, produced by disassembling and translating the original MIPS cod… | 81 | 1358 | active |
| SHADERed SHADERed is a free, open-source, cross-platform IDE for writing, previewing, and debugging GLSL and HLSL shaders. It includes a line-by-lin… | 23 | 4801 | maintenance |
| wenqsun/DimensionX DimensionX is a research framework that generates photorealistic 3D and 4D scenes from a single image using controllable video diffusion mo… | 40 | 1336 | active |
| sjtuytc/UnboundedNeRFPytorch A PyTorch implementation benchmarking state-of-the-art unbounded (large-scale) neural radiance field methods like NeRF++, DVGO, and Block-N… | 23 | 1323 | active |
| OpenTeleVision/TeleVision Open-TeleVision is an open-source immersive robot teleoperation system that streams stereoscopic visual feedback to VR headsets (Apple Visi… | 25 | 1313 | active |
| vye16/shape-of-motion Shape of Motion is a Python research codebase for 4D reconstruction of dynamic scenes from a single monocular video, based on the ICCV 2025… | 27 | 1311 | active |
| buoyancy99/diffusion-forcing Official research code for the NeurIPS paper 'Diffusion Forcing: Next-token Prediction Meets Full-Sequence Diffusion', implementing a metho… | 61 | 1299 | active |
| thu-ml/Motus Motus is the official implementation of a unified latent action world model for robotics, combining a video generation model, a vision-lang… | 40 | 1297 | active |
| suragnair/alpha-zero-general A clean, flexible implementation of the AlphaZero self-play reinforcement learning algorithm that can be adapted to any two-player turn-bas… | 32 | 4520 | maintenance |
| Stable-X/Stable3DGen Stable3DGen is a modular Python framework for generating 3D assets from images, adapted from Microsoft's TRELLIS with NVIDIA library depend… | 30 | 1278 | active |
| Dex Retargeting A Python library of retargeting optimizers that translate human hand motion (from video or pose datasets) into robot dexterous hand joint c… | 32 | 1274 | active |
| cvg/depthsplat DepthSplat is a PyTorch research library implementing a CVPR 2025 model that connects Gaussian splatting with single/multi-view depth estim… | 53 | 1262 | active |
| PyDMD/PyDMD PyDMD is a Python package implementing Dynamic Mode Decomposition (DMD) and its many variants (mrDMD, HODMD, etc.) for extracting spatiotem… | 56 | 1260 | active |