Goddess Maker is planned to have a route to a new game section called "Nanoscale of Perspective" on the condition that the player character shrinks to under 1 inch in "Lab of God" and thus gravitates onto the partner character's body as he perpetually shrinks down to 1 quectometer in height. Not sure if it's the mod developer's plan to copy it like with "Lab of God", but unlikely given the source material hasn't been initially developed by me yet.
A wrote some more information about it in this Q&A I had:
https://www.patreon.com/AscensionSimulation/posts/goddess-maker-q-151931799