Puzzle platformers have come a long way. Long progressed from the mere idea of just jumping they now screw with the fundamentals of physics; time and space. Closure – a contender in this years IGF – messes around with light in a way that completely obliterates my conception of space. That is to say it’s hard. The basic premise is that what you can see exists, what you can’t doesn’t. And this is in a literal sense, none of this philosophical nonsense and questions of perception here. Can’t see the floor? You fall through it. Can’t see a wall? You…