Miegakure is a 4-dimensional puzzle game. What this means is that I am going to struggle to convey exactly what playing it entails. That’s not to say that the game’s designer, Marc Ten Bosch, has made something alienating or overly intellectual. It’s a warm, funny, deeply intelligent game, which I was pleased to have the opportunity play on the periphery of this year’s GDC. I think it could be very important indeed.