I wondered what that was for too!
After decorating a bit and tricks I use...by sinking some things into the ground/walls to create something different I believe that this platform may usually be placed in the air/on stilts and then the "hole" could be used for a rope winch to haul things up? Maybe the solid collision so you don't accidentally fall through it?
Or maybe if it was on stilts in water you could go fishing via it?
Totes-Bode wrote: »Beneath the small raised treehouse. What is this square hole for?