Mark Conahan has taken all of his M1 maps (including those originally in Canyonlands, Go Wif Jeza, Bobco, some single-map releases, and some previously unreleased maps), tied them all together with a cynically entertaining storyline (reminded me of Harry Harrison), and bundled them with a huge assortment of shapes. These include all those first released with the above maps, plus new scenery, and some shapes and physics created by other people (the battle mech from Dogs of Pfhor, the fusion and spanker bobs from Dave Turner's High and Low map, a sight patch...). The entire package isn't completely bug-free, but it's very enjoyable.