This is pretty neat. I once had the idea of using Minecraft to represent filesystems. If you think of movies with "cyberspace" where they navigate files in a 3D space. So you would generate a world based on files and folders on your PC, which you could interact with. For example, folders would be buildings you enter, subfolders could be rooms, a particularly large file would appear as a large monolith, and a smaller file a small one, or something along those lines.
It would be painful for doing anything in practice, but would be kinda fun as an experiment maybe.