There are at least hundreds, probably thousands, and possibly tens of thousands of potential houses in first-person labyrinth puzzler Blue Prince. I am genuinely tempted to review them all, but I am not a realtor and Graham's kneecaps inflate when a review strays above 2000 words, so I'll settle for describing just four. The first is the house you discover. It waits eternally behind doors that give you a choice of three, semi-randomised rooms when you reach for the handle, each "drafted" on a...