Three maps, 5 levels. One three-pack, normal. The other two are variations on the same map. They both require the textures from the Canyonlands package, and the second one was designed with the Dogs of Pfhor package, as well.
Designed by someone with young kids who thought Marathon looked great, but were a bit overwhelmed by the complexity of some maps. Simple, but with nice flow.
6 levels (The title level, and 5 bonus levels). Pretty well made, small but not simple. The bonus levels seem to be experiments... some work really well.