cloisim-ros
There are 2 repositories under cloisim-ros topic.
lge-ros2/cloisim
Unity3D based multi-robot simulator can bring-up simulation environment by SDF(Simulation Description File) easily. And it supports to connect ROS2 through cloisim_ros.
lge-ros2/cloisim_ros
ROS2 simulation device packages to connect unity based multi-robot simulator CLOisim.