This book is packed full of advice for making monsters challenging and novel. I appreciate the basic stat blocks paired with unique abilities as a quick, dare I say lazy, way to home brew new monsters or adapt existing ones.
The most thorough process for making a sandbox campaign setting either large or small. The examples explain the process in detail. I’ve paired this with another product and have a setting full of gameable locations, NPCs, and quests.
Thorough method for generating a sandbox but it’s a mile wide an an inch deep. Would pair well with a better set of random tables for fleshing out locations.