I have a couple of kids who want to work in Minecraft to build / model real world creations before building them. One such use is a playhouse. I wanted to try to help them by finding a game that would provide more accurate / flexible modeling than that which is provided in Minecraft with such large aggregate blocks.
What games or programs (that make the modeling experience immersive and fun) exist that might fit this criteria where they not only will have more accurate models, but also be able to walk around and interact with their environment?
VR would be a plus, but not necessary.