Don’t rule it out completely. I am seeing what I can do to reduce the requirement as @Azhrak pointed out, the current requirement is a graphics device that supports OpenGL 4.2. Integrated or standalone card makes no difference.
I can’t give any info about how low I can get it yet… but I’d say, wait for the new release of StoneVox coming out in a few days. You never know, it may work.
According to my sources, if I can get the requirements down below or at OpenGL 4.0 and you have enough RAM available, I believe the HD4000 has no VRAM, StoneVox will run on your current computer.
Perhaps I could pull some tricky too, specifically for you and other users who are experiencing problems.