Microcosm is a virtual/augmented reality voxel drawing application. You can create and share worlds in a native format, and export to common 3D formats like PLY and OBJ + MTL for use within other applications. It also provides a sort of “fantasy video game console” via a Lua scripting API.
This manual is divided into two sections. The first contains an overview of the app UI and tools. The second section documents the Lua Scripting API.