Facio is a free GUI for computational chemistry softwares (TINKER, MSMS, Firefly, Gamess, MOPAC and Gaussian). It will be helpful to your study and research on theoretical chemistry. Current Version : 19.1.6 (released on February 17, 2016) for Windows & Linux for Mac OS X (10.6 or later) This software is indispensable to FMO (Fragment Molecular Orbital) method of Gamess becau