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The City of Strings Welcomes You!

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Start enjoying the Codex of Strings in seconds with this mini guide to our universe!


I. Download the SRD!

There is no better place to start than with our very own, constantly updating, System Reference Document! These pages contain what we believe to be the best of the best from all our entries, and all you need to know to conduct an adventure within our Universe of Strings! Download for free and browse through 100+ pages of our best content!

II. Discover the Core XII

The Codex of Strings has twelve main settings, even if our universe is much larger. They are unique works, meant to introduce the monsters, spells, feats, lore and items of each of the settings the City of Strings visits. You can read more about them in the Core XII page below. Each seeting has its own free preview for you to download!

III. Explore the Universe!

There is a lot more to be had! We release a bunch of books each month, updating previous content and creating new entries! This ever-changing universe is at your disposal. You can read about each work we put out on our Entries page below, or you can subscribe to our Patreon to keep up with our newest releases!


Autumn Deal: The Dark Collection

Discover the Universe of Strings with its many eldritch and cursed settings ! Find yourself amid the dark marshes of Selem, in the heart of accursed Asgard, and in the depths of the material plane! The Threads of Divinity await! This promotion includes the following products: From our CORE XII settings: - The Ichorous Peninsula: Remastered Edition ($24.99) - The Library of Underside ($24.99) - Allfather's Ink ($24.99) - The Tectonic Netherdepths ($24.99) From our newest releases: - The Court of the Afterlife ($16.99) - Angels of Tartarus ($16.99) - Splinters of Death: Ultimate ($24.99) In addition, this promotion contains  Ariadne's SRD   V.1.3  for free! 110+ pages taken from all our entries, with updates and improvements to previous content, and much, much more. 

$49.99 $160.00

Splinters of Death: Ultimate

Discover the twisted creatures forlorn by the Thread of Death! Fight against monstrosities, vampires, werewolves and much, much more in this 80 page, halloween-themed book. Unearth the secrets of Necromancy, defeat the death knights and liches of the Dark Years, and help Zaiah Fleshbinder restore the Domain of Death! This sourcebook has everything you need to properly run your undead creatures! - 31 Stat sheets, from Monstrosities, to Fey, to many, many kinds of Undead! - Classifications of Undead creatures, along with lore on the many new monsters included! - 5 items that channel the essence of Death! - 17 spells from the five separate sub-schools of Necromancy! - Several end-game, CR 25+ boss monsters with multi-part fights!

$24.99

The Core XII - Full Catalog Promotion!

Get the entire Core XII catalog, heftily discounted and in a neat promotional package! Hours and hours of original and unique D&D content: optional rules, monsters, magic items, quests, feats, spells, settings, lore...  Don't want all of them? Check out our promo packs instead!  This promotion includes our CORE XII sourcebooks, or about 1000+ pages of D&D content for you to explore! Specifically, it contains the following products: - The Ichorous Peninsula: Remastered Edition ($24.99) - The Citadel of Radiance: Deluxe Edition ($19.99) - The Soulfrost Expanse: Deluxe Edition ($21.99) - The Molten Crucible: Deluxe Edition ($21.99) - The Nova Cluster: Deluxe Edition ($21.99) - The Rippling East: Deluxe Edition ($24.99) - The Library of Underside: Deluxe Edition ($24.99) - Allfather's Ink: Deluxe Edition ($24.99) - The Last Bastion: Deluxe Edition ($24.99) - The Emerald Crown: Deluxe Edition ($24.99) - The Tectonic Netherdepths: Deluxe Edition ($24.99) - The City of Strings: Deluxe Edition ($29.99) In addition, this promotion contains  Ariadne's SRD   V.1.3   for free!  110+ pages taken from all our entries, with updates and improvements to previous content, and much, much more. 

$79.99 $250.00

    Popular Releases of the Codex!