Groboto is no longer around. I’m guessing the web page is on a perpetual free location.
Sad to tell you the following… I am using my old memories.
Two brothers developed the software, I purchased version three and kept updating it , I was buying a lot of 3d back in 2011 and reading all the time online before that.
One day I got an email that his brother had a cancer and was dying. And very soon there were no new updates and the site no long took emails or gave replies. It seems I heard that they sold it to another 3D program that incorporated it in their program.
If you look at the computer requirements, it stops at win7.
I’m afraid this is too out of date to consider using and there are plenty more options today.
I am in 3D these days and Blender remains my most used 3D program out of all that I collected over the years, tried and learned and sometimes open again.
The best lesson I have learned in my long years… is that it isn’t the software that makes a good or great 3D artist… it’s the person that does that. And, I admire all who continue showing me their accomplishments here on the Internet.
The very best to you and everyone out there in the 3D world.
p.s. especially Ton