Call of the Netherdeep

Critical Role: Call of the Netherdeep is a campaign and adventure module published by Wizards of the Coast. First teased at D&D Celebration on September 26, 2021 by Chris Perkins, the book was released in hardcover and digital formats on March 15, 2022. However, due to shipping delays, the hardcover was later released in Europe on April 5, 2022.

Contents
The adventure, intended to run through levels 3 through 12, begins in Xhorhas, progresses to Ank'Harel, then moves into a new location: the Netherdeep, described as "a terrifying cross between the Far Realm and the deep ocean". Under the watchful gaze of Ruidus, twisting the fate of those who can change history, adventurers seek to release a forgotten champion of the gods, thought destroyed but instead awakened in his prison in the depths of Exandria.

The book also includes statblocks for new magical items, including those allowing characters to survive in underwater environments, and new mechanics on running a party of rival NPC characters.

Credits
Development on Call of the Netherdeep was led by Matthew Mercer and Chris Perkins with contributions from James Haeck. Hannah Rose also worked on the adventure. Further credits include:
 * Writers: Makenzie De Armas, LaTia Jacquise, Cassandra Khaw, Sadie Lowry
 * Cover art: Minttu Hynninen
 * Cartography: Stacey Allan, Will Doyle, and Deven Rue
 * Concept art: Claudio Pozas (artist's category), Richard Whitters, Shawn Wood (artist's category)
 * Interior illustration:
 * Eric Belisle
 * Hunter Severn Bonyun
 * Zoltan Boros
 * David René Christensen
 * CoupleOfKooks
 * Kent Davis
 * Nikki Dawes
 * Axel Defois
 * Max Dunbar (artist's category)
 * Isabel Gibney (artist's category)
 * Minttu Hynninen
 * Julian Kok
 * Linda Lithén
 * Jessica Mahon
 * Andrew Mar (artist's category)
 * Marcela Medeiros (artist's category)
 * Robson Michel (artist's category)
 * Goñi Montes
 * Jim Nelson
 * Nguyen Hieu (artist's category)
 * Jessica Nguyen (artist's category)
 * Irina Nordsol (artist's category)
 * Caio Santos
 * David Sladek
 * Crystal Sully
 * Brian Valeza (artist's category)
 * Anna Veltkamp (artist's category)
 * Johannes Voss
 * Tyler Walpole (artist's category)
 * Lauren Walsh (artist's category)
 * Shawn Wood (artist's category)
 * Zuzanna Wuzyk (artist's category)
 * Kieran Yanner (artist's category)
 * Anna Zee (artist's category)
 * Maria Zolotukhina

D&D Adventurers League
Upon the release of Call of the Netherdeep, both it and the previously published Explorer's Guide to Wildemount were adapted for the D&D Adventurers League, Wizards of the Coast's official organized play program.

In March 2022, Wizards of the Coast licensee Baldman Games began running an online ticketed Alternate Campaign featuring two Critical Role starting adventures: "Frozen Sick" (from Explorer's Guide to Wildemount) and "Cold Rush" (DDALCA-03). Baldman Games will also initially run the Call of the Netherdeep Alternate Campaign where the book will be broken up into four hour segments for digital play.

Related interviews

 * "Dragon+ #40 - Critical Role: Call of the Netherdeep", an interview with Matt Mercer.
 * "Dragon Talk #369 - Matthew Mercer, How To DM on The Rule of Cool", significantly covering Call of the Netherdeep
 * Critical Role: Call of the Netherdeep interview playlist at the Dungeons & Dragons official YouTube
 * D&D Beyond's Call of the Netherdeep video coverage, including interviews with Makenzie De Armas and James Haeck
 * Official CritRole.com release announcement, including commentary from De Armas on some creature design inspirations