From the publisher's website:
What happens when you give six game authors freedom to write whatever they want for vs. Monsters? Well, you find yourself reading variant rules, adventures, and monsters that push the game's limits beyond its breaking point and into a new realm of terror.
vs. Monsters Anthology presents the work of Kirt A. Dankmyer, Ethan Greer, Justin D. Jacobson, Mark O'Bannon, Keith Taylor, and Jonathan Walton with an introduction by Sorcerer creator Ron Edwards.
Designed as a 40-page 5.5" x 8.5" book, this PDF presents pages side-by-side to make reading on the screen easy. 20 8.5" x 22" landscape pages in total.
Note: You must have vs. Monsters to use this supplement.