Walk around the maze and find other people online. Use M to open up the map and see where you are. Use Q to sprint. The 3D is a little laggy and doesn't look too good, but have fun. If you see a big moving stack of blocks, then that is someone else exploring. I haven't added name tags yet so I'm still working on that.
I got the online code with a few modifications from griffpatch, and the 3D code from others with changed code