MacroModel 10.7 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions among the software users are 10.7 and 10.3.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software lies within Education Tools, more precisely Science Tools. Some of the tool aliases include "Schrodinger MacroModel-v103012". This software is a product of Schrodinger LLC.
From the developer:
MacroModel is a program that combines leading force fields, accurate effective solvation models, and advanced conformational searching methods to provide the most complete molecular modeling package suitable for a wide array of research. Force field-based molecular modeling is routinely applied to examine molecular conformations, molecular motion, and intermolecular interactions, such as those in a ligand-receptor complex.
You may want to check out more software, such as Tina - TI, which might be similar to MacroModel.