A fixed point in a shifting house
Almost everything in Blue Prince resets overnight. The Safehouse is different: it is a permanent room that stays where you put it, a rare constant you can build the rest of your strategy around.
Why a permanent room matters
With one room that never moves, you stop re-solving the opening of every day. Routes can start from the Safehouse, and items or progress tied to it accumulate instead of resetting.
Planning around it
Draft your early path to make the Safehouse useful, then let later days branch from it. A permanent anchor turns a maze back into a plan.
Check the room database for the Safehouse entry and its exact room number so you can factor it into your spine.