* [ AI2-THOR ](https://github.com/allenai/ai2thor) \- Python framework with a Unity backend providing interaction, navigation, and manipulation support for household based robotic agents, consisting of 200+ of custom scenes, 1500+ custom annotated objects, and 200+ actions. 
  * [ Drake ](https://github.com/RobotLocomotion/drake) \- Drake aims to simulate even very complex dynamics of robots. 
  * [ Webots ](https://github.com/cyberbotics/webots) \- Webots is an open source robot simulator compatible (among others) with [ ROS ](http://wiki.ros.org/webots_ros) and [ ROS2 ](http://wiki.ros.org/webots_ros2) . 
  * [ lgsv ](https://github.com/lgsvl/simulator) \- LG Electronics America R&D Center has developed an HDRP Unity-based multi-robot simulator for autonomous vehicle developers. 
  * [ carla ](https://github.com/carla-simulator/carla) \- Open-source simulator for autonomous driving research. 
  * [ awesome-CARLA ](https://github.com/Amin-Tgz/awesome-CARLA) \- A curated list of awesome CARLA tutorials, blogs, and related projects. 
  * [ ros-bridge ](https://github.com/carla-simulator/ros-bridge) \- ROS bridge for CARLA Simulator. 
  * [ scenario_runner ](https://github.com/carla-simulator/scenario_runner) \- Traffic scenario definition and execution engine. 
  * [ deepdive ](https://github.com/deepdrive/deepdrive) \- End-to-end simulation for self-driving cars. 
  * [ uuv_simulator ](https://github.com/uuvsimulator/uuv_simulator) \- Gazebo/ROS packages for underwater robotics simulation. 
  * [ AirSim ](https://github.com/microsoft/AirSim) \- Open source simulator for autonomous vehicles built on Unreal Engine. 
  * [ self-driving-car-sim ](https://github.com/udacity/self-driving-car-sim) \- A self-driving car simulator built with Unity. 
  * [ ROSIntegration ](https://github.com/code-iai/ROSIntegration) \- Unreal Engine Plugin to enable ROS Support. 
  * [ gym-gazebo ](https://github.com/erlerobot/gym-gazebo) \- An OpenAI gym extension for using Gazebo known as gym-gazebo. 
  * [ gym-pybullet-drones ](https://github.com/utiasDSL/gym-pybullet-drones) \- PyBullet-based Gym environments for single and multi-agent reinforcement learning of quadcopter control. 
  * [ safe-control-gym ](https://github.com/utiasDSL/safe-control-gym) \- PyBullet-based CartPole and Quadrotor environments—with CasADi symbolic dynamics and constraints—for safe and robust learning-based control. 
  * [ highway-env ](https://github.com/eleurent/highway-env) \- A collection of environments for autonomous driving and tactical decision-making tasks. 
  * [ VREP Interface ](http://www.coppeliarobotics.com/helpFiles/en/rosInterf.htm) \- ROS Bridge for the VREP simulator. 
  * [ car_demo ](https://github.com/osrf/car_demo) \- This is a simulation of a Prius in gazebo 9 with sensor data being published using ROS kinetic. 
  * [ sumo ](https://github.com/eclipse/sumo) \- Eclipse SUMO is an open source, highly portable, microscopic and continuous road traffic simulation package designed to handle large road networks. 
  * [ open-simulation-interface ](https://github.com/OpenSimulationInterface/open-simulation-interface) \- A generic interface for the environmental perception of automated driving functions in virtual scenarios. 
  * [ ESIM ](https://github.com/uzh-rpg/rpg_esim/) \- An Open Event Camera Simulator. 
  * [ Menge ](https://github.com/MengeCrowdSim/Menge) \- Crowd Simulation Framework. 
  * [ pedsim_ros ](https://github.com/srl-freiburg/pedsim_ros) \- Pedestrian simulator powered by the social force model for Gazebo. 
  * [ opencrg ](http://www.opencrg.org/download.html) \- Open file formats and open source tools for the detailed description, creation and evaluation of road surfaces. 
  * [ esmini ](https://github.com/esmini/esmini) \- A basic OpenSCENARIO player. 
  * [ OpenSceneGraph ](https://github.com/openscenegraph/OpenSceneGraph) \- An open source high performance 3D graphics toolkit, used by application developers in fields such as visual simulation, games, virtual reality, scientific visualization and modelling. 
  * [ morse ](https://github.com/morse-simulator) \- An academic robotic simulator, based on the Blender Game Engine and the Bullet Physics engine. 
  * [ ROSIntegrationVision ](https://github.com/code-iai/ROSIntegrationVision) \- Support for ROS-enabled RGBD data acquisition in Unreal Engine Projects. 
  * [ fetch_gazebo ](https://github.com/fetchrobotics/fetch_gazebo) \- Contains the Gazebo simulation for Fetch Robotics Fetch and Freight Research Edition Robots. 
  * [ rotors_simulator ](https://github.com/ethz-asl/rotors_simulator) \- Provides some multirotor models. 
  * [ flow ](https://github.com/flow-project/flow) \- A computational framework for deep RL and control experiments for traffic microsimulation. 
  * [ gnss-ins-sim ](https://github.com/Aceinna/gnss-ins-sim) \- GNSS + inertial navigation, sensor fusion simulator. Motion trajectory generator, sensor models, and navigation. 
  * [ Ignition Robotics ](https://ignitionrobotics.org) \- Test control strategies in safety, and take advantage of simulation in continuous integration tests. 
  * [ simulation assets for the SubT ](https://subtchallenge.world/openrobotics/fuel/collections/SubT%20Tech%20Repo) \- This collection contains simulation assets for the SubT Challenge Virtual Competition in Gazebo. 
  * [ gazebo_ros_motors ](https://github.com/nilseuropa/gazebo_ros_motors) \- Contains currently two motor plugins for Gazebo, one with an ideal speed controller and one without a controller that models a DC motor. 
  * [ map2gazebo ](https://github.com/shilohc/map2gazebo) \- ROS package for creating Gazebo environments from 2D maps. 
  * [ sim_vehicle_dynamics ](https://github.com/TUMFTM/sim_vehicle_dynamics) \- Vehicle Dynamics Simulation Software of TUM Roborace Team. 
  * [ gym-carla ](https://github.com/cjy1992/gym-carla) \- An OpenAI gym wrapper for CARLA simulator. 
  * [ simbody ](https://github.com/simbody/simbody) \- High-performance C++ multibody dynamics/physics library for simulating articulated biomechanical and mechanical systems like vehicles, robots, and the human skeleton.