Stingray: 3D Game Engine and Design Visualization
autodesk.com
autodesk.com
Those, however, aren't free - far from it. At least with Unity you only have to shell out cash once you have [likely] made that cash from the sales you made with the free version. With this you need to shell out the cash up-front, for possibly one of the most ludicrously priced products in existence.
I can't see this going very far.
Movie-like assets for games are hard, expensive and artists who master all the skills that it takes are rare.
If Stingray had that single feature, this would have been a case of "shut up and take my money". As it is, not so much.