`Open Dynamics Engine (ODE) <https://sourceforge.net/projects/opende/>`_
and the `Visualization Toolkit (VTK) <http://www.vtk.org/>`_.
+For installation instructions and requirements, see the
+`online documentation <http://ars-project.readthedocs.org/en/latest/installation/>`_.
+ARS relies in these software:
* Python 2.7 (developed with 2.7.3)
* ODE (Open Dynamics Engine) 0.12 (from rev 1864 could work but is untested) with Python bindings