This plugin makes your game a 3D labyrinth explorer, it's quite easy to use once everything is set up.
I've been working on this for some time now, I really hope you enjoy it (and I swear I'll try my best to fix all the issues you report >.<).
Screenshots
Spoiler
How to Use
I really recommend you use the Demo as a base for creating your project, but if you can't do that, save the script to your game's "js/plugins" folder and follow the install instructions on the plugin help. More informations on the plugin help.