1.jrouwe / JoltPhysics
A multi core friendly rigid body physics and collision detection library. Written in C++. Suitable for games and VR applications. Used by Horizon Forbidden West and Death Stranding 2.
+1,907 stars
from 10,203 · score 7.55
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
56 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
2.future-agi / future-agi
Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Guardrails. Self-hostable. Apache 2.0.
+1,412 stars
from 825 · score 7.25
3.OpenRCT2 / OpenRCT2
An open source re-implementation of RollerCoaster Tycoon 2 🎢
+1,028 stars
from 15,502 · score 6.94
4.OpenTTD / OpenTTD
OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe
+664 stars
from 7,783 · score 6.50
5.taojy123 / KeymouseGo
类似按键精灵的鼠标键盘录制和自动化操作 模拟点击和键入 | automate mouse clicks and keyboard input
+588 stars
from 10,057 · score 6.38
6.PavelDoGreat / WebGL-Fluid-Simulation
Play with fluids in your browser (works even on mobile)
+556 stars
from 16,231 · score 6.32
7.bulletphysics / bullet3
Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.
+469 stars
from 14,371 · score 6.15
8.cyberbotics / webots
Webots Robot Simulator
+451 stars
from 4,292 · score 6.11
9.openrocket / openrocket
Model-rocketry aerodynamics and trajectory simulation software
+400 stars
from 2,788 · score 5.99
10.mesa / mesa
Mesa is an open-source Python library for agent-based modeling, ideal for simulating complex systems and exploring emergent behaviors.
+340 stars
from 3,593 · score 5.83
11.synthetichealth / synthea
Synthetic Patient Population Simulator
+328 stars
from 3,101 · score 5.80
12.projectchrono / chrono
High-performance C++ library for multiphysics and multibody dynamics simulations
+324 stars
from 2,810 · score 5.78
13.The-Powder-Toy / The-Powder-Toy
Written in C++ and using SDL, The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox, it simulates air pressure and velocity as well as heat.
+315 stars
from 5,075 · score 5.76
14.Revolutionary-Games / Thrive
The main repository for the development of the evolution game Thrive.
+313 stars
from 3,495 · score 5.75
15.eclipse-sumo / sumo
Eclipse SUMO is an open source, highly portable, microscopic and continuous traffic simulation package designed to handle large networks. It allows for intermodal simulation including pedestrians and comes with a large set of tools for scenario creation.
+294 stars
from 3,959 · score 5.69
16.lammps / lammps
Public development project of the LAMMPS MD software package
+254 stars
from 2,865 · score 5.54
17.Schlaubischlump / LocationSimulator
MacOS application to spoof / fake / mock your iOS / iPadOS or iPhoneSimulator device location. WatchOS and TvOS are partially supported.
+240 stars
from 2,927 · score 5.48
18.jslee02 / awesome-robotics-libraries
:sunglasses: A curated list of robotics libraries and software
+214 stars
from 2,886 · score 5.37
19.idaholab / moose
Multiphysics Object Oriented Simulation Environment: A robust, modern, extendable, finite element/finite volume framework that excels at creating complex multiphysics simulations.
+184 stars
from 2,215 · score 5.22
20.quantumlib / Cirq
Python framework for creating, editing, and running Noisy Intermediate-Scale Quantum (NISQ) circuits.
+178 stars
from 4,922 · score 5.19
21.ahundt / awesome-robotics
A curated list of awesome links and software libraries that are useful for robots.
+149 stars
from 1,370 · score 5.01
22.pathsim / pathsim
A Python native dynamical system simulation framework in the block diagram paradigm.
+145 stars
from 367 · score 4.98
23.pgmpy / pgmpy
Python Toolkit for Causal and Probabilistic Reasoning
+122 stars
from 3,243 · score 4.81
24.Unity-Technologies / Unity-Robotics-Hub
Central repository for tools, tutorials, resources, and documentation for robotics simulation in Unity.
+108 stars
from 2,498 · score 4.69
25.sofa-framework / sofa
Real-time multi-physics simulation with an emphasis on medical simulation.
+108 stars
from 1,187 · score 4.69
26.osrf / gazebo_models
Gazebo database of SDF models. This is a predecessor to https://app.gazebosim.org
+99 stars
from 1,236 · score 4.61
27.R74nCom / sandboxels
In-browser falling-sand simulation game with over 500 elements and thousands of reactions.
+90 stars
from 387 · score 4.51
28.MFlowCode / MFC
Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs
+86 stars
from 352 · score 4.47
29.jasonwebb / morphogenesis-resources
Resources on the topic of digital morphogenesis (creating form with code). Includes links to major articles, code repos, creative projects, books, software, and more.
+83 stars
from 2,216 · score 4.43
30.pioneerspacesim / pioneer
A game of lonely space adventure
+83 stars
from 1,846 · score 4.43
31.lmmentel / awesome-python-chemistry
A curated list of Python packages related to chemistry
+67 stars
from 1,384 · score 4.22
32.mithi / hexapod
Blazing fast hexapod robot simulator for the web.
+67 stars
from 732 · score 4.22
33.kjkrol / goke
High-performance, zero-allocation ECS for Go. Cache-friendly data orchestrator with type-safe iterators.
+67 stars
from 27 · score 4.22
34.precice / precice
A coupling library and ecosystem for partitioned multi-physics and multi-scale simulations, including surface and volume coupling.
+63 stars
from 924 · score 4.16
35.unknown-horizons / unknown-horizons
Unknown Horizons official code repository
+57 stars
from 1,502 · score 4.06
36.mlange-42 / ark
Ark -- Archetype-based Entity Component System (ECS) for Go.
+56 stars
from 249 · score 4.04
37.TUDelft-CNS-ATM / bluesky
The open source air traffic simulator
+55 stars
from 520 · score 4.03
38.unknown-horizons / godot-port
Unknown Horizons Godot Engine Port
+51 stars
from 860 · score 3.95
39.usnistgov / fipy
FiPy is a Finite Volume PDE solver written in Python
+32 stars
from 613 · score 3.50
40.MmgTools / mmg
open source software for bidimensional and tridimensional remeshing
+31 stars
from 460 · score 3.47
41.ucla-mobility / OpenCDA
A generalized framework for prototyping full-stack cooperative driving automation applications under CARLA+SUMO.
+30 stars
from 1,141 · score 3.43
42.uuvsimulator / uuv_simulatorArchived
Gazebo/ROS packages for underwater robotics simulation
+25 stars
from 864 · score 3.26
43.libMesh / libmesh
libMesh github repository
+17 stars
from 744 · score 2.89
44.fofapro / fapro
Fake Protocol Server
+14 stars
from 1,602 · score 2.71
45.uber-common / metta
An information security preparedness tool to do adversarial simulation.
+14 stars
from 1,134 · score 2.71
46.ika-rwth-aachen / Cam2BEV
TensorFlow Implementation for Computing a Semantically Segmented Bird's Eye View (BEV) Image Given the Images of Multiple Vehicle-Mounted Cameras.
+10 stars
from 783 · score 2.40
47.sebsjames / mathplot
C++ modules for plotting, graphing and data visualization
+10 stars
from 57 · score 2.40
48.stuntrally / stuntrally
NOTE: development in stuntrally3 repo. 3D racing game based on VDrift and OGRE with own Track Editor. The main repository with Stunt Rally 2.x sources and data.
+9 stars
from 638 · score 2.30
49.pydy / pydy
Multibody dynamics tool kit.
+9 stars
from 408 · score 2.30
50.johnmcfarlane / cnl
A Compositional Numeric Library for C++
+8 stars
from 687 · score 2.20
51.enlite-ai / maze
Maze Applied Reinforcement Learning Framework
+7 stars
from 287 · score 2.08
52.d-wasserman / Complete_Street_Rule
The Complete Street Rule for ArcGIS CityEngine is a scenario oriented design tool intended to enable users to quickly create procedurally generated multimodal streets.
+7 stars
from 211 · score 2.08
53.deepdrive / deepdrive
Deepdrive is a simulator that allows anyone with a PC to push the state-of-the-art in self-driving
+4 stars
from 922 · score 1.61
54.h2non / toxyArchived
Hackable HTTP proxy for resiliency testing and simulated network conditions
+3 stars
from 2,709 · score 1.39
55.OpenSimulationInterface / open-simulation-interface
A generic interface for the environmental perception of automated driving functions in virtual scenarios.
+2 stars
from 298 · score 1.10
56.tenro-ai / tenro-python
Open-source simulation harness for testing AI agents. Simulate LLM and tool calls to test edge cases, failure paths, and agent logic without live API calls.
+2 stars
from 5 · score 1.10