High Quality Content by WIKIPEDIA articles! The Player Project (formerly the Player/Stage Project or Player/Stage/Gazebo Project) is a project to create free software for research into robotics and sensor systems. Its components include the Player network server and Stage and Gazebo robot platform simulators. Although accurate statistics are hard to obtain, Player is probably the most-used robot interface in research and post-secondary education. Most of the major intelligent robotics journals and conferences regularly publish papers featuring real and simulated robot experiments using Player, Stage and Gazebo.