I’m sure there are some oversights in this idea that could be fixed fairly easily. Feel free to add your own (reasonable) thoughts or objections.
I see use for the cupboard for at least rotating/repairing building blocks (within it’s radius) if this idea gets implemented, but to do away with the anti-building radius and add some new fun to the game, I would like to suggest one-sided corrugated and spiked building block add-ons (ceiling/wall/floor/foundation). One for inflicting damage (+25% build/upgrade cost-per-block), and one for simply denying the ability to attach additional blocks (+15% build/upgrade cost-per-block).
Given the concept, I’m sure you could understand why it would be important to prevent players from rotating blocks that they aren’t authorized to… but if the add-on were able to be removed (50%block damage?) then the block could be built on to… I believe this would add some balance to appease both builders and raiders.
this would also add an extra level of depth to things like labyrinths, and hopefully open the game up to possibilities like trap doors and spike pits.