Listing of other UAV flight simulators that use Gazebo and related work

Flight simulator for UAVs (using Gazebo):

Gazebo for MAVLink SITL -- see the webpage here for even more detailed instructions: link
- note that "If you use this simulator in academic work, please cite RotorS as per the README [at this link:]" https://github.com/ethz-asl/rotors_simulator/blob/master/README.md
- note that this repo uses parts of ethz-asl's RotorS MAV gazebo simulator for AsTec multirotors (not the debatably newer one at ayushgaud/rotors_simulator), and is apparently currently planned to be folded back into the ethz-asl repository

Dronecode is a project with open-source code, encompassing several respositories:
- the Dronecode main organization repo
- QGroundControl Ground Control Station
- PX4 flight stack
- MAVLink comms code
- DroneKit and ROS APIs
- Pixhawk and UAVCAN firmware/hardware
Multiple robots in Gazebo(+rviz)
- applyhhj/ros_multi_robot_sim -- bash script similar in idea to vagrant-rss setup (ROS hydro, may need work)