Many parts of this felt like reading the backstory to someone else's DandD character. Overly concerned with lore, sometimes nonsensical, and above all: irrelevant to my interests and boring.
(Disclaimer: I am a passionate Dungeons and Dragons player.)

The humor just didn't work with me. I think that's what will make or break the book for you, and it was the straw that broke the camel's back for me.
A wise acquaintance said to me, "There's only two types of people who read Kings of the Wyld: people who stopped at the erection joke and people who absolutely love the book." I hoped that I would be in the second camp. To my dismay, I'm actually in the first.