D&D DM’s Guild – Doorways of Yyadrisil

My very first publication for Dungeons & Dragons 5th edition
is now live on the Dungeon Master’s Guild!


It has long been my goal to publish some original material for D&D, way back when Dragon and Dungeon used to be print magazines. Finally I’ve taken my first step into the D&D publishing world (albeit a little late).

Doorways of Yyadrisil is a supplement for Dungeon Masters that presents 10 new magical doors, all purportedly created by the mysterious wizard known only as Yyadrisil (Pronounced “Eee-yad-dri-sill”). Some are fun and benign, and others are extremely dangerous. If you’re looking for an interesting new addition to your next dungeon crawl, creepy castle, or haunted house, go and download Doorways of Yyadrisil from the Dungeon Master’s Guild now!

Since it is my first publications, I’ve made it “Pay What You Want” so you can see if you like my style. If you do like it (or even if you don’t) I would truly appreciate it if you would give it a review and rating on the DM’s Guild. You can also send me feedback on Twitter (@mjsoctober) or via the DM’s Guild.

Click the images below for a preview.

Doorways of Yyadrisil Cover

Here is the introduction…


From time to time stories are told of adventurers who find strange, magical, and sometimes horrifying doorways. Over the centuries sages pieced together a narrative spanning thousands of years and miles, of hundreds of doors, each unique, incredibly old, and possibly all the work of one eccentric wizard. No one knows if it was a man or woman, humanoid or monstrous. All they have is a name found on or near more than one of these doors in a language thought long dead. That name is Yyadrisil.

In these pages you will find a selection of these doors, as recorded by the scribe Tomaz of Candlekeep. Use them to confound your players as they search through ancient ruins, or even an adventure on behalf of some wealthy patron who wishes to add one of these doors to her collection of antiquities.

Thank you, and stay tuned for more!


About The October Geek

Yes, I am the October Geek. I exist in the crisp breeze of an autumn evening when you are walking down that gravel path under swaying trees of red, orange and gold. I am the smoke that curls in the air from chimneys, and the laugh of a child in the distance as the sun hits the horizon and dazzles you with dying light. I am a man who loves all things Autumn, and most especially Hallowe'en. I am a geek who loves to play games, read books, watch movies, and generally be a grognard. I am the husband of a geek and a father to one jock, one bohemian geek, and one young geek in training. On The October Geek I will attempt to entertain and interact with those of you who share these delights. I will post reviews of things Autumnal and Geeky. I will post stories. I will eventually even be posting videos and pod casts. This is my experiment, let's see how I do.

Leave a Reply

Your email address will not be published. Required fields are marked *