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 |
|---|---|---|---|
| kmammou/v-hacd V-HACD is a C++ library that decomposes a 3D surface mesh into a set of near-convex parts for use in collision detection and physics simula… | 38 | 1656 | abandoned |
| openai/neural-mmo Neural MMO is a massively multiagent game environment (MMORPG-style) for training and evaluating intelligent agents, released alongside an … | 10 | 1652 | abandoned |
| CADmium-Co/CADmium CADmium is a browser-based parametric CAD program built in Rust (compiled to WASM) with a SvelteKit UI, targeting hobbyist mechanical desig… | 10 | 1637 | abandoned |
| Angelo1211/HybridRenderingEngine HRE is a real-time 3D rendering engine written in C++ with OpenGL that implements hybrid clustered forward/deferred shading with physically… | 23 | 1590 | abandoned |
| sonicether/SEGI SEGI is a fully-dynamic voxel-based global illumination system for the Unity game engine, distributed as a Unity package of C# scripts and … | 23 | 1573 | abandoned |
| nibsbin/LockstepFramework A C# framework for building lockstep multiplayer games like RTS, tower defense, and MOBA titles, integrated with Unity. It provides a deter… | 66 | 1537 | abandoned |
| kripken/BananaBread BananaBread is a port of the Cube 2/Sauerbraten C++ 3D game engine and first-person shooter to the web, compiled to JavaScript/WebAssembly … | 32 | 1452 | abandoned |
| opentomb/OpenTomb OpenTomb is an open-source, from-scratch reimplementation of the classic Tomb Raider 1-5 game engines, capable of playing original and cust… | 10 | 1445 | abandoned |
| Environment Project A deprecated environment plugin for Unreal Engine 4 providing ocean and sky simulation, buoyancy, time-of-day, and fish plugins. It has bee… | 32 | 1401 | abandoned |
| google-ar/arcore-unity-sdk Google's ARCore SDK for Unity, providing native APIs for augmented reality features such as motion tracking, environmental understanding, a… | 10 | 1393 | abandoned |
| amitp/mapgen2 A procedural map generator for games, written in ActionScript (Flash), that creates island/continent maps with coastlines, mountains, and r… | 38 | 1377 | abandoned |
| SonyWWS/LevelEditor Sony's standalone WYSIWYG level editor for designing game levels, maps, and virtual worlds, built on the Authoring Tools Framework with C# … | 32 | 1376 | abandoned |
| robcupisz/LightShafts A Unity plugin implementing volumetric shadows (light shafts / light scattering) for directional and spot lights. It uses adaptive raymarch… | 32 | 1340 | abandoned |
| NVIDIA/Q2RTX Quake II RTX is NVIDIA's fully path-traced reimplementation of Id Software's 1997 game Quake II, built on the Q2VKPT and Q2PRO engine branc… | 10 | 1318 | abandoned |
| max-mapper/voxel-engine A JavaScript library for building 3D voxel games in the browser using three.js and HTML5. It provides chunk-based world generation, block m… | 32 | 1313 | abandoned |
| OpenHMD/OpenHMD OpenHMD is a free and open source C library providing an API and drivers for immersive technology devices such as head-mounted displays wit… | 27 | 1287 | abandoned |
| edankwan/The-Spirit The Spirit is a WebGL-based visual experiment by Edan Kwan that creates a smoky particle effect using curl noise and noise derivatives. It … | 32 | 1285 | abandoned |
| AutoTrader AutoTrader is a Python-based platform for developing, backtesting, optimising and deploying automated trading systems across forex, crypto … | 10 | 1275 | abandoned |
| Kvant/Spray KvantSpray is a GPU-accelerated object instancing and particle animation system for Unity, part of the Kvant effect suite. It uses floating… | 32 | 1225 | abandoned |
| RPCS3-Android/rpcs3-android An experimental Android port of the RPCS3 PlayStation 3 emulator, written in Kotlin and requiring Android 12+. The project is discontinued,… | 10 | 1207 | abandoned |
| CarlosGS/Cyclone-PCB-Factory Cyclone PCB Factory is a parametric, 3D-printable CNC mill design (RepRap-style) intended for milling printed circuit boards. It provides C… | 10 | 1188 | abandoned |
| Olde-Skuul/doom3do The complete source code archive for the infamous 1995 DOOM port to the 3DO console, released by its original developer. It serves as a his… | 32 | 1172 | abandoned |
| LeagueSandbox An open-source game server implementation emulating the core gameplay of League of Legends, written in C#. It was archived in September 202… | 10 | 1171 | abandoned |
| SiFive Freedom Platform SiFive's Freedom platform RTL source files, written in Chisel (Scala), implementing the Freedom E300 and U500 RISC-V SoC platforms for FPGA… | 10 | 1147 | abandoned |
| skmp/reicast-emulator Reicast was a multiplatform Sega Dreamcast emulator written in C++ with a dynamic recompiler for ARM and x86. The project is now end-of-lif… | 10 | 1133 | abandoned |
| nv-tlabs/ASE ASE (Adversarial Skill Embeddings) is a research codebase from NVIDIA for training reusable low-level skill controllers for physically simu… | 53 | 1124 | abandoned |
| Working-Title-MSFS-Mods/fspackages A collection of community-made mod packages for Microsoft Flight Simulator, primarily improving aircraft avionics like the CJ4, G3000, and … | 10 | 1115 | abandoned |
| xioTechnologies/Gait-Tracking-With-x-IMU MATLAB source code for a foot-mounted IMU gait tracking algorithm that estimates position via dead reckoning, with drift corrected at each … | 32 | 1075 | abandoned |
| autoas/as-deprecated An open-source automotive software framework implementing OSEK/AUTOSAR basic software (BSW), including an OSEK-compliant RTOS (ASKAR), CAN/… | 57 | 1053 | abandoned |
| soulwire/Coffee-Physics A simple, lightweight 2D physics engine written in CoffeeScript, featuring Verlet integration, particle behaviors like attraction and colli… | 32 | 1051 | abandoned |
| begla/Intrinsic Intrinsic is a Vulkan-based cross-platform game and rendering engine written in C++ with a data-oriented design, including an editor (Intri… | 23 | 1045 | abandoned |
| MADEAPPS/newton-dynamics Newton Dynamics is a real-time physics simulation engine for rigid body dynamics in games and interactive applications. This specific repos… | 53 | 1022 | abandoned |
| poliastro/poliastro poliastro is a pure Python library for interactive astrodynamics and orbital mechanics, offering orbit propagation, maneuver planning, and … | 10 | 1014 | abandoned |
| Nition/UnityOctree A dynamic, loose octree data structure implementation for Unity written in C#. It includes BoundsOctree for axis-aligned bounding box stora… | 10 | 1009 | abandoned |
| Bevy Bevy is a free, open-source, data-driven game engine and app framework written in Rust, built around a custom Entity Component System (ECS)… | 91 | 48687 | active |
| Apollo Apollo is an open-source autonomous driving platform providing a high-performance, modular software stack for developing, testing, and depl… | 54 | 26853 | active |
| graphdeco-inria/gaussian-splatting The official reference implementation of 3D Gaussian Splatting, a method for real-time radiance field rendering that reconstructs scenes fr… | 47 | 24196 | active |
| ML-Agents The Unity Machine Learning Agents Toolkit (ML-Agents) lets Unity games and simulations serve as environments for training intelligent agent… | 66 | 19717 | active |
| NVlabs/instant-ngp NVIDIA's implementation of instant neural graphics primitives, training NeRFs, signed distance functions, neural images, and neural volumes… | 48 | 17557 | stable |
| Robbyant/lingbot-map LingBot-Map is a feed-forward 3D foundation model that reconstructs scenes from streaming image data using a Geometric Context Transformer.… | 57 | 17135 | active |
| SciPy SciPy is an open-source Python library providing fundamental algorithms for scientific computing, including optimization, integration, inte… | 93 | 15123 | stable |
| microsoft/TRELLIS TRELLIS is Microsoft's large-scale 3D asset generation model that creates high-quality 3D assets from text or image prompts. It uses a unif… | 58 | 14035 | active |
| jopohl/urh Universal Radio Hacker (URH) is a complete open-source suite for investigating wireless protocols, with native support for many common Soft… | 10 | 12592 | active |
| microsoft/TRELLIS.2 TRELLIS.2 is a 4B-parameter state-of-the-art 3D generative model from Microsoft for high-fidelity image-to-3D asset generation. It uses a f… | 54 | 12374 | active |
| NVIDIA/cosmos NVIDIA Cosmos is an open platform of omnimodal world foundation models, datasets, and tools for building Physical AI systems such as robots… | 69 | 11892 | active |
| StockSharp StockSharp (S#) is an open-source algorithmic and quantitative trading platform for .NET and Python, providing a trading API, 70+ broker/ex… | 68 | 10925 | active |
| TrinityCore/TrinityCore TrinityCore is an open-source C++ MMORPG server framework derived from MaNGOS, implementing game server logic for World of Warcraft client … | 97 | 10800 | active |
| prusa3d/PrusaSlicer PrusaSlicer is a G-code generator for 3D printers that converts 3D models (STL, OBJ, AMF) into print instructions for FFF printers or PNG l… | 88 | 9365 | active |
| threestudio-project/threestudio threestudio is a unified open-source framework for 3D content generation from text prompts, single images, and few-shot images by lifting 2… | 21 | 7069 | active |
| VAST-AI-Research/TripoSR TripoSR is an open-source model for fast feedforward 3D object reconstruction from a single image, developed by Tripo AI and Stability AI. … | 61 | 7005 | active |
| ROS 2 ROS 2 (Robot Operating System) is a meta operating system consisting of software libraries and tools for building robot applications, from … | 96 | 6089 | stable |
| AidLux (AidLearning) AidLux (originally AidLearning) is an AIoT development platform that runs a native Ubuntu Linux environment with GUI, deep learning tooling… | 63 | 5812 | active |
| REFramework REFramework is a mod loader, scripting platform, and modding tool for Capcom's RE Engine games, loaded via a dinput8.dll proxy. It provides… | 74 | 5605 | active |
| patriciogonzalezvivo/glslViewer A console-based OpenGL sandbox for rendering and live-editing 2D/3D GLSL shaders without a UI. It supports fragment and vertex shaders, tex… | 84 | 5329 | active |
| Adam-CAD/CADAM CADAM is an open-source web application that converts natural language descriptions and images into 3D CAD models using LLM-powered agents … | 73 | 5210 | active |
| Magnum Magnum is a lightweight and modular C++11/C++14 graphics middleware library providing a slim wrapper over OpenGL, OpenGL ES, WebGL and Vulk… | 64 | 5208 | stable |
| lightvector/KataGo KataGo is an open-source Go (baduk) engine trained via AlphaZero-like self-play, one of the strongest Go bots available. It runs as a GTP e… | 95 | 5204 | active |
| NVIDIAGameWorks/kaolin Kaolin is NVIDIA's PyTorch library of GPU-optimized modules for 3D deep learning research, covering meshes, point clouds, and 3D Gaussian s… | 66 | 5175 | active |
| OpenBMB/AgentVerse AgentVerse is a Python framework for deploying multiple LLM-based agents, offering two frameworks: task-solving (multi-agent collaboration … | 21 | 5141 | active |
| QGroundControl QGroundControl is a cross-platform ground control station for MAVLink-enabled drones, providing full flight control, mission planning, vehi… | 99 | 5051 | stable |
| OpenDriveLab/UniAD UniAD is a unified end-to-end autonomous driving framework that hierarchically casts perception, prediction, and planning tasks under a pla… | 41 | 4766 | active |
| hku-mars/FAST-LIVO2 FAST-LIVO2 is a fast, tightly-coupled LiDAR-inertial-visual odometry and mapping system written in C++ on ROS. It provides real-time, accur… | 54 | 4755 | active |
| KaijuEngine/kaiju Kaiju is an open-source 2D/3D game engine written in Go and backed by Vulkan, with a built-in visual editor that itself runs as a game in t… | 81 | 4725 | active |
| NVlabs/neuralangelo Official PyTorch implementation of Neuralangelo, a CVPR 2023 method for high-fidelity neural surface reconstruction from multi-view images.… | 29 | 4615 | active |
| real-stanford/diffusion_policy Official PyTorch implementation of Diffusion Policy, a visuomotor robot policy learning method that represents robot behavior as a conditio… | 31 | 4588 | stable |
| VCV Rack VCV Rack is the open-source host application for a virtual Eurorack modular synthesizer platform, emulating hardware modules in software wi… | 51 | 4426 | stable |
| JonathanSalwan/Triton Triton is a dynamic binary analysis library providing dynamic symbolic execution, taint analysis, and ISA semantics for x86, x86-64, ARM32,… | 67 | 4334 | active |
| KilledByAPixel/LittleJS LittleJS is a tiny, fast, open-source HTML5 game engine written in JavaScript with no dependencies. It bundles WebGL2/Canvas2D rendering, a… | 99 | 4302 | active |
| cea-sec/miasm Miasm is a free and open source (GPLv2) reverse engineering framework written in Python for analyzing, modifying, and generating binary pro… | 66 | 3985 | active |
| hustvl/4DGaussians An official PyTorch implementation of 4D Gaussian Splatting (4D-GS) for real-time rendering of dynamic scenes, published at CVPR 2024. It c… | 28 | 3978 | active |
| cloudflare/miniflare Miniflare is a fully-local simulator for Cloudflare Workers written in TypeScript, running worker code in a sandbox that implements the Wor… | 10 | 3926 | active |
| nem0/LumixEngine Lumix Engine is an open-source 3D game engine written in C++ with a built-in editor and entity-component-system architecture. It uses data-… | 67 | 3895 | active |
| Space Station 14 Space Station 14 is an open-source, round-based multiplayer roleplaying game about paranoia and chaos aboard a space station, remaking the … | 84 | 3875 | active |
| facebookresearch/map-anything MapAnything is an open-source research framework from Meta and CMU for universal feed-forward metric 3D reconstruction using an end-to-end … | 71 | 3813 | active |
| ferdous-alam/GenCAD GenCAD is a research codebase for image-conditioned CAD model generation using transformer-based contrastive representations (CCIP) and dif… | 33 | 3744 | active |
| DLR-RM/BlenderProc BlenderProc is a procedural Python pipeline built on Blender for generating photorealistic synthetic training images with ground-truth anno… | 59 | 3740 | active |
| lowRISC/opentitan OpenTitan is an open-source silicon Root of Trust (RoT) project providing commercial-grade, security-certified hardware IP blocks written i… | 81 | 3707 | stable |
| DI-engine DI-engine is an open-source reinforcement learning framework from OpenDILab that provides comprehensive implementations of deep RL algorith… | 44 | 3647 | active |
| AiuniAI/Unique3D Unique3D is the official implementation of a NeurIPS 2024 paper that generates high-quality textured 3D meshes from a single image in about… | 35 | 3589 | active |
| Anttwo/SuGaR SuGaR is the official PyTorch implementation of a CVPR 2024 method that extracts accurate, editable meshes from 3D Gaussian Splatting recon… | 27 | 3525 | active |
| luigifreda/pyslam pySLAM is a hybrid Python/C++ Visual SLAM pipeline supporting monocular, stereo, and RGB-D cameras with a wide range of local and global fe… | 76 | 3430 | active |
| PhysicsNeMo NVIDIA PhysicsNeMo is an open-source Python deep-learning framework for building, training, fine-tuning, and inferring physics AI models us… | 93 | 3373 | active |
| matrixcascade/PainterEngine PainterEngine is a cross-platform application/game engine written in C with a built-in software renderer, portable to any platform supporti… | 75 | 3326 | active |
| 2D Gaussian Splatting Official implementation of 2D Gaussian Splatting (2DGS), a SIGGRAPH 2024 method that represents scenes as 2D oriented Gaussian disks for ge… | 66 | 3312 | stable |
| DynamoRIO/dynamorio DynamoRIO is a runtime code manipulation system that supports arbitrary code transformations on executing programs, with a powerful instruc… | 95 | 3181 | active |
| Sergio0694/ComputeSharp ComputeSharp is a .NET library that lets developers write compute and pixel shaders in C# and run them in parallel on the GPU via DirectX 1… | 73 | 3173 | stable |
| dexmal/dexbotic Dexbotic is an open-source PyTorch-based toolbox for developing Vision-Language-Action (VLA) models for embodied intelligence. It unifies p… | 70 | 3144 | active |
| tlaplus/tlaplus The official TLA+ tools repository containing TLC, a model checker for TLA+ specifications, plus the SANY parser, PlusCal translator, REPL,… | 86 | 3114 | active |
| leggedrobotics/rsl_rl RSL-RL is a GPU-accelerated, lightweight reinforcement learning library for robotics research, featuring algorithms like PPO and Student-Te… | 97 | 3075 | active |
| kairos-agi/kairos Kairos is the official open-source implementation of a 4B-parameter native cross-embodiment world model that unifies video understanding, f… | 59 | 3066 | active |
| deepseek-ai/DreamCraft3D Official PyTorch implementation of DreamCraft3D, an ICLR 2024 hierarchical 3D content generation method that turns a single 2D image into a… | 32 | 3032 | stable |
| guillaumeblanc/ozz-animation ozz-animation is an open source C++ 3D skeletal animation library and toolset providing runtime character animation playback (sampling, ble… | 79 | 2967 | stable |
| ValveSoftware/steam-audio Steam Audio is Valve's open-source spatial audio SDK providing physics-based sound propagation, occlusion, reflection, reverb, and HRTF-bas… | 63 | 2956 | active |
| Tencent-Hunyuan/HunyuanWorld-1.0 Tencent HunyuanWorld-1.0 is an open-source 3D world generation model that creates immersive, explorable, and interactive 3D worlds from tex… | 50 | 2936 | active |
| zig-gamedev/zig-gamedev The main development repository for the zig-gamedev organization, containing Zig game development libraries and a large collection of sampl… | 61 | 2870 | active |
| werner-duvaud/muzero-general A commented and documented PyTorch implementation of DeepMind's MuZero reinforcement learning algorithm, designed to be easily adapted to a… | 32 | 2870 | active |
| tscircuit tscircuit is an open-source React/TypeScript framework and toolchain for designing, previewing, simulating, and manufacturing printed circu… | 70 | 2839 | active |
| Sabaki Sabaki is a cross-platform Go (Baduk/Weiqi) board and SGF editor built with Electron and web technologies. It supports SGF game editing, bo… | 80 | 2781 | active |
| Stan Stan is a C++ probabilistic programming library for full Bayesian inference via NUTS/Hamiltonian Monte Carlo, approximate inference via ADV… | 88 | 2774 | stable |
| bmild/nerf The official TensorFlow implementation of NeRF (Neural Radiance Fields), the ECCV 2020 paper representing scenes as neural radiance fields … | 36 | 10944 | maintenance |