Once you've entered the Antechamber in Blue Prince, you'll quickly discover there are at least a few more puzzles to solve ...

Once you've entered the Antechamber and unlocked the Basement, there's only one more step to open Room 46. This one can get a ...

You’ll need to find (at least) one of the three levers that open the Antechamber doors and then draft a path to that door. Once you do that, you’ll pick up the Basement Key. The Basement key ...