Downloading OptumG2 2016.09.25 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. This program was originally created by OptumCE ApS. The common filename for the program's installer is OptumG2.exe.
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 program lies within Photo & Graphics Tools, more precisely 3D Design. The most popular version of the tool is 2016.09.25.
From the developer:
Optum G2 is a comprehensive finite element program for geotechnical stability and deformation analysis. It includes features like: limit analysis, strength reduction analysis, elastoplastic analysis, geostatic stress analysis, and more. The program allows for an easy and intuitive modelling of geometry with automatic recognition of intersections, closed surfaces, etc.
You may want to check out more software, such as graphite or Drawing Register Professional, which might be similar to OptumG2.