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Player is a language and platform independent network server for robot control. Stage simulates a population mobile robots in a 2D environment. Both are Free Software written in C++ and licensed under GNU GPL.

The Open Robot Control Software Project aims to develop an architecture-independent component based framework for all aspects of robot control. Orocos is Free Software licensed under the GNU LGPL.

An Open-Source Robotics Software Project (Contributors Welcome). An Open Source robotics project that aims to develop standardized simulators, control software, and APIs for mobile robotics applications. All code is Free Software licensed under the GNU GPL.