5 variations on a theme. They all center on the idea of a large arena with a floor made of platforms (hence the name), with varying degrees of complexity to the outer corridors that move around it. Nice, mostly... except that the platforms move pretty slowly, and if you're trapped in a lower corridor with the platform up, you're dead.
Eleven total net levels, some made by the author and a couple that will jog your memory of some of Bungies favorites. Most of these have very strong light sets along with equally strong flow. Lots of net modes supported in these maps and I only found a couple of bugs.