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 one of the most popular open-source robot interfaces 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.