Main World

Main World is the first level on Object World. It is added from A04.04.2020.

Early Build "December 12, 2019"
There is a screenshot of it in this early build describing Capsule, Mirror, a block you can color (can be seen in these images), Pencil Main, and the text in the block says:

Welcome to Object World Pre-Alpha Version

This game created company by: Stepan Mine Creator.

There is no download available/link, however.