Hello ros-users, This package implements frontier exploration using an action server (explore_server), that can be controlled from rviz via explore_client, or directly from other nodes. http://wiki.ros.org/frontier_exploration https://github.com/paulbovbel/frontier_exploration When starting out with ROS, I was frustrated that there was no (maintained) exploration package that worked solely using the core ROS APIs (i.e. navigation). Internally, this package contains a custom costmap_2d layer plugin that could be adapted for more complex exploration strategies. Please email or post any feedback, comments or concerns! Cheers, Paul Bovbel paul.bovbel@utoronto.ca