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 |
|---|---|---|---|
| openhwgroup/cv32e40p CV32E40P is an open-source 32-bit RISC-V processor core (RV32IMFC with PULP extensions) implemented in SystemVerilog, maintained by the Ope… | 67 | 1312 | active |
| LekKit/RVVM RVVM is a high-performance RISC-V virtual machine and emulator written in C, featuring a tracing JIT with x86_64, ARM64, and RISC-V backend… | 67 | 1310 | active |
| menloresearch/asimov-1 Asimov 1 is an open-source 1.2 m, 35 kg humanoid robot with 25 actuated degrees of freedom, released under CERN-OHL-S for hardware and GPL-… | 60 | 1310 | active |
| nba-emu/NanoBoyAdvance NanoBoyAdvance is a cycle-accurate Nintendo Game Boy Advance emulator written in C++ with a Qt-based GUI. It prioritizes hardware accuracy,… | 10 | 1310 | active |
| TTimo/doom3.gpl The official GPL-3.0 source code release of id Software's Doom 3 game engine, provided without game data assets. It can be compiled on Wind… | 32 | 4637 | maintenance |
| nvidia-isaac/nvblox nvblox is a GPU-accelerated C++/Python library for real-time 3D reconstruction using TSDF and ESDF volumetric mapping, designed for robots … | 79 | 1307 | active |
| ZJU-FAST-Lab/GCOPTER GCOPTER is a general-purpose trajectory optimizer for multicopters built on the sparse MINCO trajectory representation. It supports user-de… | 32 | 1306 | active |
| libgdx/gdx-ai gdxAI is a Java artificial intelligence framework for game development, designed as a libGDX extension but usable independently. It provide… | 32 | 1305 | stable |
| zkat/big-brain big-brain is a Utility AI library for the Bevy game engine, written in Rust. It lets developers define data-driven AI behaviors for game en… | 10 | 1304 | active |
| SebLague/Fluid-Sim A particle-based fluid simulation built in Unity with C#, implementing SPH-style methods from academic papers. It includes GPU-accelerated … | 46 | 1301 | active |
| InternRobotics/InternUtopia InternUtopia (formerly GRUtopia) is a Python simulation platform built on NVIDIA Isaac Sim for embodied AI research, supporting diverse rob… | 36 | 1301 | active |
| cvxgrp/cvxportfolio Cvxportfolio is an object-oriented Python library for portfolio optimization and back-testing, implementing the convex-optimization trading… | 55 | 1300 | active |
| spimort/TerraBrush TerraBrush is a GDExtension terrain heightmap editor plugin for Godot 4.5+. It provides brush-based sculpting, texture and color painting, … | 88 | 1299 | active |
| Agentshire/Agentshire Agentshire is an OpenClaw/QClaw plugin that turns AI agents into living 3D NPCs inside a customizable low-poly game town. It combines a rea… | 59 | 1298 | active |
| e2nIEE/pandapower pandapower is an open-source Python library for power system modeling, analysis, and optimization, built on pandas and PYPOWER. It provides… | 99 | 1297 | stable |
| skylersaleh/SkyEmu SkyEmu is a low-level, cross-platform emulator for Game Boy, Game Boy Color, Game Boy Advance, and Nintendo DS systems, focused on accuracy… | 78 | 1296 | active |
| ZhengyiLuo/PHC Official implementation of the ICCV 2023 paper 'Perpetual Humanoid Control for Real-time Simulated Avatars'. It provides a Python codebase … | 41 | 1296 | active |
| gopher64/gopher64 Gopher64 is a highly compatible, cross-platform Nintendo 64 emulator written in Rust. It supports netplay, homebrew ROMs, upscaling, CRT sh… | 91 | 1294 | active |
| kripken/ammo.js ammo.js is a direct port of the Bullet physics engine to JavaScript and WebAssembly using Emscripten, with autogenerated bindings that mirr… | 75 | 4581 | maintenance |
| cosmosgl/graph cosmos.gl is a GPU-accelerated force graph layout and rendering engine built on WebGL 2 (via luma.gl), where all simulation and drawing run… | 98 | 1291 | active |
| MaximeHerpin/modular_tree Mtree is a C++ library for procedurally generating 3D tree models through composable tree functions and meshing. It is distributed primaril… | 23 | 1291 | active |
| floooh/chips A toolbox of 8-bit chip and complete system emulators written as dependency-free C99 header files. Chip emulators communicate via a pin bit… | 75 | 1289 | active |
| rswinkle/PortableGL PortableGL is a software implementation of OpenGL 3.x core written in clean C99 as a single-header library in the style of the stb librarie… | 80 | 1286 | active |
| VzBoT3D/VzBoT-Vz330 VzBoT is an open-source high-speed CoreXY 3D printer project (Vz-330 and Vz-235) based on the TronXY X5S/X5SA aluminum extrusion frame, wit… | 39 | 1284 | active |
| SOFA Framework SOFA is an open-source C++ framework for interactive, real-time multi-physics simulation based on the Finite Element Method, with an emphas… | 84 | 1279 | active |
| meniku/NPBehave NPBehave is an event-driven behavior tree library for building code-based AI in Unity 3D. It stays in its current state instead of re-trave… | 24 | 1275 | stable |
| EatTheFuture/camera_shakify Camera Shakify is a Blender addon that adds realistic camera shake to Blender cameras using recorded shake data. It is written in Python an… | 58 | 1273 | active |
| wormtql/genshin_artifact Mona Divination Shop is a web application for Genshin Impact that computes damage, automatically optimizes artifact (relic) combinations, a… | 37 | 1273 | active |
| CircuitVerse CircuitVerse is a free, open-source web platform for building and simulating digital logic circuits in the browser, inspired by Logisim. It… | 76 | 1272 | active |
| ethz-asl/rovio ROVIO (Robust Visual Inertial Odometry) is a C++ framework from ETH Zurich that estimates camera and IMU trajectory using an iterated exten… | 74 | 1270 | active |
| cataclysmbn/Cataclysm-BN Cataclysm: Bright Nights is an open-source turn-based roguelike survival game set in a procedurally generated post-apocalyptic world, forke… | 94 | 1269 | active |
| tokio-rs/turmoil Turmoil is a family of Rust crates for deterministic simulation testing of distributed systems, running multiple concurrent hosts on a sing… | 80 | 1267 | active |
| ziyc/drivestudio DriveStudio is a Python framework for 3D Gaussian Splatting (3DGS) based reconstruction and simulation of dynamic urban driving scenes. It … | 37 | 1267 | active |
| ToniRV/NeRF-SLAM NeRF-SLAM is a real-time dense monocular SLAM system that combines neural radiance fields (Instant-NGP) with probabilistic volumetric fusio… | 32 | 1266 | active |
| metadriverse/metadrive MetaDrive is an open-source, lightweight driving simulator built for AI and autonomy research, supporting compositional scene synthesis and… | 67 | 1265 | active |
| VoronDesign/Voron-Stealthburner Voron Stealthburner is the official open-source toolhead design for Voron 3D printers, providing CAD files, printed part STLs, and assembly… | 39 | 1264 | active |
| OpenSpace/OpenSpace OpenSpace is an open-source interactive astrovisualization application that renders the entire known universe, from planetary surfaces to g… | 87 | 1257 | active |
| martinpacesa/BindCraft BindCraft is a Python-based computational pipeline for de novo protein binder design that combines AlphaFold2 backpropagation, ProteinMPNN,… | 70 | 1256 | active |
| jdah/minecraft-weekend A small Minecraft-like voxel game written in C, originally built in 48 hours and since extended. It features an infinite procedurally gener… | 32 | 4417 | maintenance |
| Jaysmito101/TerraForge3D TerraForge3D is a free, open-source, cross-platform procedural terrain generation and texturing tool built in C++ with GPU acceleration. It… | 67 | 1251 | active |
| Stella VSLAM stella_vslam is a community-maintained fork of OpenVSLAM implementing a monocular, stereo, and RGBD visual SLAM system in C++. It supports … | 73 | 1250 | active |
| google-deepmind/android_env AndroidEnv is a Python library from DeepMind that exposes an Android device (real or emulated) as a Reinforcement Learning environment. Age… | 83 | 1249 | active |
| facebookresearch/home-robot HomeRobot is an open-source robotics stack from Meta AI for mobile manipulation tasks on low-cost hardware like the Hello Robot Stretch. It… | 23 | 1247 | active |
| RigsOfRods/rigs-of-rods Rigs of Rods is a free, open-source soft-body physics sandbox game that simulates the real-time motion, deformation, and destruction of veh… | 72 | 1246 | active |
| marian42/mesh_to_sdf A Python library that computes approximate signed distance fields (SDFs) for arbitrary triangle meshes, including non-watertight, self-inte… | 32 | 1246 | stable |
| NVlabs/alpasim AlpaSim is an open-source, Python-based autonomous vehicle simulation platform for developing and testing end-to-end AV policies in closed … | 72 | 1245 | active |
| ksami/QRemeshify QRemeshify is a Blender extension (addon) that provides an easy-to-use remesher producing good-quality quad topology, based on QuadWild wit… | 14 | 1245 | active |
| Brian Brian2 is a free, open-source, clock-driven simulator for spiking neural networks written in Python. It lets scientists define neuron and s… | 76 | 1241 | stable |
| alexhude/uEmu uEmu is an IDA Pro plugin built on the Unicorn engine that lets you emulate code directly inside the IDA disassembler. It supports x86, x64… | 73 | 1239 | active |
| libtcod libtcod is a C/C++ library providing tools and algorithms for developing traditional roguelikes, including a true-color tile-based console,… | 85 | 1238 | stable |
| MyoHub/myosuite MyoSuite is a collection of musculoskeletal environments and tasks simulated with the MuJoCo physics engine and wrapped in the OpenAI gym A… | 85 | 1238 | active |
| SciML/NeuralPDE.jl NeuralPDE.jl is a Julia library of physics-informed neural network (PINN) solvers for ordinary, stochastic, and partial differential equati… | 99 | 1235 | active |
| berkeley-abc/abc ABC is a system for sequential logic synthesis and formal verification of digital circuits, developed at UC Berkeley. It can be used as a s… | 76 | 1235 | active |
| Rakashazi/emu-ex-plus-alpha A multi-platform retro game console emulation system consisting of emulator apps for many classic consoles, built on the Imagine platform a… | 54 | 1234 | active |
| MxEngine MxEngine is an open-source, general-purpose 3D game engine written in modern C++ with an OpenGL rendering backend and a Vulkan backend in p… | 32 | 1232 | active |
| psi4/psi4 Psi4 is an open-source quantum chemistry package for electronic structure calculations, with computationally demanding code in C++ and a fl… | 94 | 1229 | active |
| unitreerobotics/unitree_mujoco A MuJoCo-based simulator for Unitree robots (Go2, B2, H1, G1, etc.) that integrates with Unitree SDK2 control programs in both C++ and Pyth… | 74 | 1229 | active |
| SwagSoftware/Kisak-Strike Kisak-Strike (Gentoo Offensive) is a fully open-source rebuild of Counter-Strike: Global Offensive's Source engine codebase, targeted at Li… | 34 | 1226 | active |
| MiceWine MiceWine is an Android application that runs Windows applications and games on smartphones using a custom Wine build combined with Box64 fo… | 70 | 1225 | active |
| jbikker/tinybvh TinyBVH is a single-header, dependency-free C++ library for fast Bounding Volume Hierarchy (BVH) construction and ray traversal on CPU and … | 67 | 1225 | active |
| rohanpsingh/LearningHumanoidWalking A Python research codebase for training humanoid robots to walk using deep reinforcement learning (PPO) in MuJoCo simulation. It provides e… | 66 | 1224 | active |
| FEniCSx DOLFINx is the next-generation computational environment of the FEniCS Project, implemented in C++ with Python bindings, for solving partia… | 93 | 1222 | active |
| PCjs PCjs is a collection of JavaScript-based emulators for classic computers, including the original IBM PC (PCx86), 6502 and 8080 microcompute… | 77 | 1221 | active |
| nneonneo/2048-ai An AI solver for the 2048 game using expectimax optimization with an efficient bitboard representation, searching over 10 million moves per… | 61 | 1221 | stable |
| simondlevy/TinyEKF TinyEKF is a lightweight, header-only C/C++ implementation of the Extended Kalman Filter designed for microcontrollers like Arduino and STM… | 63 | 1220 | stable |
| microsoft/malmo Project Malmo is a platform for artificial intelligence experimentation and research built on top of Minecraft, providing a gym-like enviro… | 10 | 4270 | maintenance |
| dartsim/dart DART (Dynamic Animation and Robotics Toolkit) is an open-source, research-focused C++ physics engine for robotics, animation, and machine l… | 100 | 1217 | active |
| cp2k/cp2k CP2K is an open-source quantum chemistry and solid state physics package for atomistic simulations of molecular, liquid, periodic, and biol… | 83 | 1217 | stable |
| TheDuckCow/godot-road-generator A Godot engine plugin for procedurally creating 3D highways and streets with lane-following traffic support. It provides editor tooling and… | 90 | 1215 | active |
| i2Nav-WHU/KF-GINS KF-GINS is an open-source C++ implementation of an EKF-based GNSS/INS loosely-coupled integrated navigation system, developed by Wuhan Univ… | 67 | 1215 | active |
| drhelius/Gearboy Gearboy is an accurate cross-platform Game Boy, Game Boy Color, and Super Game Boy emulator written in C++, available as a desktop app, a R… | 99 | 1214 | active |
| SamiPerttu/fundsp FunDSP is a Rust library for audio processing and digital signal synthesis with a composable inline graph notation for building audio netwo… | 60 | 1214 | active |
| NawfalMotii79/PLFM_RADAR AERIS-10 is an open-source, low-cost 10.5 GHz pulse linear frequency modulated (PLFM) phased array radar system with full schematics, PCB l… | 64 | 25349 | experimental |
| OriginQ/QPanda-2 QPanda 2 is an open-source quantum computing framework by Origin Quantum for building, running, and optimizing quantum algorithms, with a C… | 23 | 1209 | active |
| roboticslibrary/rl A self-contained C++ library for rigid body kinematics and dynamics, motion planning, collision detection, and robot control. It includes h… | 26 | 1206 | stable |
| rsd-devel/rsd RSD is a 32-bit RISC-V out-of-order superscalar processor core written in SystemVerilog. It is designed for high performance with aggressiv… | 66 | 1204 | active |
| SimAI SimAI is a large-scale network simulation toolkit from Alibaba Cloud for modeling AI training and inference workloads on GPU clusters, publ… | 65 | 1201 | active |
| AirSLAM AirSLAM is an efficient, illumination-robust point-line visual SLAM system supporting stereo visual odometry/VIO, offline map optimization,… | 43 | 1200 | active |
| trianglesplatting/triangle-splatting Official implementation of 'Triangle Splatting for Real-Time Radiance Field Rendering' (3DV 2026), which uses 3D triangles as rendering pri… | 40 | 1197 | active |
| rusEFI rusEFI is a GPL open-source internal combustion engine control unit (ECU) project, including STM32 firmware, KiCAD hardware designs, a Java… | 88 | 1194 | active |
| csete/gpredict Gpredict is a real-time satellite tracking and orbit prediction desktop application using SGP4/SDP4 propagation with NORAD TLE data. It dis… | 92 | 1188 | stable |
| NetLogo NetLogo is a widely used agent-based modeling environment written in Scala, letting users program turtles, patches, and links to simulate c… | 85 | 1187 | active |
| ashblue/fluid-behavior-tree A code-driven behavior tree library for Unity3D built with the builder pattern and a fluent API. It includes pre-built task nodes, a runtim… | 56 | 1184 | active |
| chengxuxin/extreme-parkour Official code for 'Extreme Parkour with Legged Robots' (ICRA 2024), a reinforcement learning framework for training quadruped robots to per… | 28 | 1184 | active |
| VladimirYugay/Gaussian-SLAM A research implementation of a dense RGBD SLAM system that uses 3D Gaussian Splatting as its scene representation to photorealistically rec… | 27 | 1184 | active |
| enable3d/enable3d Enable3d is a TypeScript 3D game framework for the web that wraps three.js and adds ammo.js (Bullet) physics, and can also be used as a phy… | 74 | 1180 | active |
| sultim-t/xash-rt A fork of the Xash3D FWGS game engine that adds a real-time path-traced renderer (RayTracedGL1), primarily targeting Half-Life 1. It replac… | 23 | 1178 | active |
| madmann91/bvh A header-only C++20 library for constructing and traversing bounding volume hierarchies (BVH), with multiple SAH-based builders, a reinsert… | 77 | 1177 | active |
| Unity-Technologies/megacity-metro Megacity Metro is an open-source multiplayer shooter game sample from Unity built with DOTS (Entity Component System) and Netcode for Entit… | 57 | 1175 | active |
| DOSBox Pure DOSBox Pure is a fork of the DOSBox DOS emulator built as a libretro core for RetroArch, focused on simplicity and ease of use. It supports… | 84 | 1174 | active |
| Deepnest Deepnest (and its browser-based predecessor SVGnest) is an open-source vector nesting tool that packs arbitrary 2D shapes into sheets of ma… | 32 | 1174 | active |
| madsim-rs/madsim MadSim is a Rust async runtime similar to tokio that enables deterministic simulation testing for distributed systems. It mocks I/O interfa… | 59 | 1173 | active |
| keijiro/StableFluids A GPU-based Unity implementation of Jos Stam's Stable Fluids fluid simulation using compute shaders. It exposes the velocity field for rend… | 46 | 1172 | active |
| aappleby/metroboy A collection of gate-level simulators for the original Game Boy (DMG-01), including GateBoy, which was reverse-engineered from die shots of… | 23 | 1172 | active |
| srsran/srsRAN_4G srsRAN 4G is an open-source software radio suite implementing a full 4G LTE protocol stack in C++, including srsUE (UE), srsENB (eNodeB), a… | 72 | 4078 | maintenance |
| quantum-visualizations/qmsolve A Python library for solving the Schrödinger equation for one and two particles and visualizing the resulting eigenstates and time-dependen… | 23 | 1171 | active |
| trekawek/coffee-gb Coffee GB is a highly compatible Game Boy and Game Boy Color emulator for the desktop, written in Java and Kotlin. It includes a reusable e… | 97 | 1170 | active |
| SarahWeiii/CoACD CoACD is a C++ library (with Python bindings and a Unity package) that performs approximate convex decomposition of 3D triangle meshes usin… | 95 | 1169 | active |
| simpler-env/SimplerEnv SIMPLER (SimplerEnv) is a collection of simulated environments built on SAPIEN/ManiSkill for evaluating real-world robot manipulation polic… | 48 | 1169 | active |
| Le0Michine/FusionGridfinityGenerator A Fusion 360 add-in that generates parametric Gridfinity bins and baseplates for 3D printing organization. It offers configurable options l… | 73 | 1168 | active |