“Call of the Netherdeep” includes new creatures and magic items, a poster map of Ank’Harel, and introduces new mechanics for a rival party of nonplayer characters (NPCs). The adventure takes players from levels 3-12 and features all-new art depicting Exandria from several top creators of Critical Role fan art. Many elements of the storyline tie into the themes of previous Critical Role campaigns.
The bulk of the book is, of course, aimed of at dungeon masters and includes tips for DMs to prepare players to build characters who are a good fit for the adventure, Perkins said. He declined to detail the new monsters that will appear in the new D&D adventure. New magic items in “Critical Role: Call of the Netherdeep” will let players breathe underwater and survive the deep pressures of the deep-sea world.