Vanishing Tower Press will now be the only place to purchase PDF files of USR Sword & Sorcery, Horrors Material & Magic Malignant, Anthropomorphic USR, Fear & Loathing USR and Western USR.
The POD versions of USR S&S and HM&MM are still available on DriveThruRPG and the site links to the order page if this is the product you want. Purchase of either POD softcover book entitles you to the PDF as well so verifying your purchase with your customer number from One Book Shelf seems the simplest way to go for now.
At some point I will consider making a print run and sell the softcover books directly, but currently using a POD service is just the easiest way to go to get hardcopies printed and shipped.
The site will continue to see new adventure products added to the core rulebooks I've created.
Unbelievably Simple Roleplaying is copyright Scott Malthouse and Trollish Delver Games.