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The Castle Oldskull Independent Bookstore

Welcome to the Castle Oldskull Independent Bookstore!

The corporate world is stacked against independent writers, new talent, unorthodox approaches, self-made achievers, free spirits, and unrestrained creativity. While corporate publishing entities remain a necessary evil, and many consumers prefer the corporate ease of access to authors’ works, please know that corporations take between 35% and 65% of an author’s earnings simply for using the corporate venue for publication. Book creators are often treated as mettlesome indentured servants, and are threatened with censorship, anti-competitive practices from more powerful and influential authors, punitive actions against compliance (for example, for not stating in a disclaimer that artwork is AI-assisted), and baseless threats (as one example, threatening to ban an author for plagiarism simply for quoting a public domain book written in the 1700s).

If you know, you know. If you don’t know, you are fortunate. There are reasons why I will only share this information here.

(By the way, the only 100% honorable entity I have had dealings with so far is the Bundle of Holding. Everyone else is shades of white, down to grey, below that.)

This page is my safe haven for offering my PDF e-books to you at a lower price. This is simply because I make as much money for my family here, as I do at other sites where I must charge twice as much to generate an equivalent (meager) royalty. I do understand that many purchasers demand corporate sites to ensure their perception of trust in offered goods. And I am grateful for some of the services that powerful entities can offer. For example, Amazon.com allows me to create beautiful full-color paperbacks and hardcovers on high-quality paper, and — since I cannot make these physical objects on my own — I am happy to offer them to you here.

In this Bookstore, you will find affordable PDF versions of my books, at exclusive discounts, if you purchase directly from CastleOldskull.com. But you will also find direct links to my DriveThruRPG and Amazon.com author pages. I am happy for your patronage, as a reader and fan, however you would like to offer your kindness. Please note that the links on this page to DriveThru and Amazon are affiliate links, which means that I make a few percentage points more in royalties if you click through from this page to that other site to buy my book(s). And at no additional cost to you! (Well, you will pay more at those other sites, for obvious reasons.)

If any of my books are ever banned, I will probably offer them here as exclusives. There are currently several of my works where I am in negotiations to modify content to make certain portrayals more tolerable to corporate venues, particularly those dealing with adult themes and/or the Cthulhu Mythos. Some of those works may appear here in the future.

This Independent Bookstore will grow over time. Thank you for browsing down the page, and wherever you choose to shop, know that I am grateful for your support. Happy journeys through our shared worlds of the imagination. Enjoy your travels. ~Kent


The Classic Dungeon Design Guide (Book I) is one of my most popular and highly-regarded works. Whichever Fantasy Role-Playing Game (FRPG) you decide to play, it is is the ideal introduction to old school dungeon design in the modern era.

Exclusive Offer: To view this book in PDF format as a discounted CastleOldskull.com exclusive, please click here.

DriveThru PDF: To view this book in PDF format at DriveThruRPG, please click here.

Amazon Kindle: To view this book in Kindle format at Amazon.com, please click here.

Amazon Paperback: To view this book in color paperback format at Amazon.com, please click here. Please note that this volume, to keep the price somewhat affordable, is in standard color format. This means that the images are a bit blurry compared to all other versions. If you demand the highest quality and money is no object, please refer instead to the hardcover edition below.

Amazon Premium Color Hardcover: To view this book in its finest form, the premium color hardcover at Amazon.com, please click here. This is a collector’s edition and it is necessarily expensive.


Beginning with Midjourney is a learner’s guide for the creation of digital art with the assistance of Artificial Intelligence.

Exclusive Offer: To view this book in PDF format as a discounted CastleOldskull.com exclusive, please click here.

DriveThru PDF: To view this book in PDF format at DriveThruRPG, please click here.

Amazon Kindle: To view this book in Kindle format at Amazon.com, please click here.

Amazon Color Paperback: To view this book in color paperback format at Amazon.com, please click here.


This is a placeholder. Be sure to check back soon for more releases!
This is a placeholder. Be sure to check back soon for more releases!
This is a placeholder. Be sure to check back soon for more releases!