This is an old revision of the document!
MV3D is a 3D rendering plugin for RPG Maker MV.
You can download the demo project from github. https://github.com/Dread-chan/MV3D/archive/master.zip
To add MV3D to a new or existing project, download plugin.zip and extract the files into your project directory. Then, load babylon.js and mv3d.js as plugins via the plugin manager, in that order.
Now when you run your game, the map should be rendered in 3D.