14 levels. (Well, really only 13... one of them is an info level.) There are five levels that were quite good in their M1 and M2 incarnations... and better here. There are three ports of classic Bungie M1 levels. And there are five new (previously unreleased) levels. In general, these are quite big (there are a couple of exceptions). Uniformly, these are well-made. Lighting is impressive, texture choices are tasteful, and level design is very entertaining. A winner of a package.